WO2020111625A1 - Electronic device and method for wirelessly charging battery - Google Patents

Abstract

An electronic device according to various embodiments may comprise: a chargeable battery; a coil configured to receive by a wireless manner an alternating current (AC) signal to obtain electric power from an external electronic device; a power receiving (RX) circuitry configured to obtain a first direct current (DC) signal generated on the basis of the AC signal received through the coil; a battery charging circuitry electrically connected to the battery to charge the battery and configured to obtain a second DC signal generated at least on the basis of the first DC signal; a communication circuitry operably coupled to the coil and configured to transmit a packet to the external electronic device through the coil; and a control circuitry operably coupled to the communication circuitry, the power receiving circuitry, and the battery charging circuitry, wherein the control circuitry is configured to obtain the electric current value of the first DC signal or the electric current value of the second DC signal and to transmit the packet to the external electronic device via the coil by means of the communication circuitry to adjust, according to the packet, the AC signal received from the external electronic device on the basis of the electric current value of the first DC signal or the electric current value of the second DC signal.

Description

Electronic device and method for charging battery wirelessly

Various embodiments disclosed in this document relate to an electronic device for charging a battery wirelessly and a method of operating the same.

An electronic device may receive a signal for receiving power from an external electronic device through a coil. The electronic device may charge the battery of the electronic device by processing the signal received through the coil using a power receiving circuit and a battery charging circuit.

To improve usability, electronic devices supporting high speed charging have been developed. In this regard, a method for minimizing heat generation while maximizing the efficiency of fast charging may be required.

The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems that are not mentioned can be clearly understood by those skilled in the art from the following description. There will be.

An electronic device according to various embodiments includes a rechargeable battery, a coil configured to wirelessly receive an alternating current (AC) signal for acquiring power from an external electronic device, and the coil And a power receive (RX) circuitry configured to obtain a first direct current (DC) signal generated based on the AC signal received through, and electrically connected to the battery for charging the battery, (electrically connected to) a battery charging circuit configured to obtain a second DC signal generated based at least on the first DC signal, and operably coupled to the coil; A communication circuit configured to transmit a packet to the external electronic device via a coil, and a control circuit operably coupled to the communication circuit, the power receiving circuit, and the battery charging circuit, wherein the control circuit comprises: , Acquiring the current value of the first DC signal or the current value of the second DC signal, and receiving from the external electronic device based on the current value of the first DC signal or the current value of the second DC signal The packet for adjusting the AC signal may be transmitted to the external electronic device through the coil using the communication circuit.

An electronic device according to various embodiments of the present disclosure includes a rechargeable battery, a coil configured to wirelessly receive an alternating current (AC) signal for acquiring power from an external electronic device, and received through the coil A power receive (RX) circuitry configured to obtain a first direct current (DC) signal generated based on the AC signal, and electrically connected to the battery for charging the battery ) A battery charging circuitry configured to acquire a second DC signal generated based at least on the first DC signal, operably coupled to the coil and through the coil A communication circuit configured to transmit a packet to an external electronic device, and a control circuit operably coupled with the communication circuit, the power receiving circuit, and the battery charging circuit, wherein the control circuit comprises: While the charging mode is within the constant current (CC) mode, information on a first difference value between the current value of the first DC signal and a reference current value or between the current value of the second DC signal and the reference current value A packet including information on a second difference value is transmitted to the external electronic device through the coil using the communication circuit, and it is detected that the charging mode of the battery is switched from the CC mode to a constant voltage (CV) mode. In response to information on a third difference value between the voltage value of the first DC signal and a reference voltage value or information on a fourth difference value between the voltage value of the second DC signal and the reference voltage value Another packet that is included may be transmitted to the external electronic device through the coil using the communication circuit.

An electronic device according to various embodiments of the present disclosure includes a coil configured to wirelessly transmit an AC signal for providing power to an external electronic device, a communication circuit configured to receive a packet from the external electronic device through the coil, and an operation of the coil And an inverter coupled to the controller, a control circuit operatively coupled to the communication circuit and the inverter, wherein the control circuit includes a first AC signal for charging a rechargeable battery of the external electronic device. After transmitting the first AC signal to the external electronic device through the coil by using the communication circuit, and including information about the current value from the external electronic device through the coil using the communication circuit The second AC signal for distinguishing the first AC signal and charging the battery of the external electronic device by controlling the inverter based on the information on the current value, and generating the second AC signal. An AC signal may be transmitted to the external electronic device through the coil using the communication circuit.

An electronic device and a method thereof according to various embodiments of the present disclosure may improve battery charging efficiency of the electronic device by transmitting information related to a current value to an external electronic device that wirelessly provides power to the electronic device. .

The effects obtainable in the present disclosure are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those skilled in the art from the description below. will be.

1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure.

2 illustrates an example of a wireless charging environment according to various embodiments.

3 illustrates an example of a functional configuration of an electronic device according to various embodiments of the present disclosure.

4 illustrates another example of a functional configuration of an electronic device according to various embodiments of the present disclosure.

5 illustrates an example of a functional configuration of a power receiving circuit and a control circuit according to various embodiments.

6 illustrates another example of a functional configuration of a power receiving circuit and a control circuit according to various embodiments.

7 illustrates an example of a functional configuration of a battery charging circuit and a control circuit according to various embodiments.

8 illustrates an example of an operation of an electronic device according to various embodiments of the present disclosure.

9 illustrates another example of an operation of an electronic device according to various embodiments of the present disclosure.

10 illustrates an example of an operation of an external electronic device according to various embodiments of the present disclosure.

1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments.

Referring to FIG. 1, in the network environment 100, the electronic device 101 communicates with the electronic device 102 through the first network 198 (eg, a short-range wireless communication network), or the second network 199. It may communicate with the electronic device 104 or the server 108 through (eg, a remote wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108. According to an embodiment, the electronic device 101 includes a processor 120, a memory 130, an input device 150, an audio output device 155, a display device 160, an audio module 170, a sensor module ( 176), interface 177, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196, or antenna module 197 ). In some embodiments, at least one of the components (for example, the display device 160 or the camera module 180) may be omitted or one or more other components may be added to the electronic device 101. In some embodiments, some of these components may be implemented as one integrated circuit. For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illuminance sensor) may be implemented while being embedded in the display device 160 (eg, a display).

The processor 120 controls, for example, at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120 by executing software (eg, the program 140). And can perform various data processing or operations. According to an embodiment, as at least a part of data processing or operation, the processor 120 may receive instructions or data received from other components (eg, the sensor module 176 or the communication module 190) in the volatile memory 132. Loaded into, process instructions or data stored in volatile memory 132, and store result data in non-volatile memory 134. According to an embodiment, the processor 120 may include a main processor 121 (eg, a central processing unit or an application processor), and an auxiliary processor 123 (eg, a graphics processing unit, an image signal processor) that can be operated independently or together. , Sensor hub processor, or communication processor). Additionally or alternatively, the coprocessor 123 may be set to use less power than the main processor 121, or to be specialized for a designated function. The coprocessor 123 may be implemented separately from the main processor 121 or as part of it.

The coprocessor 123 may replace, for example, the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 may be active (eg, execute an application). While in the state, with the main processor 121, at least one component of the components of the electronic device 101 (eg, the display device 160, the sensor module 176, or the communication module 190) and It can control at least some of the related functions or states. According to an embodiment, the coprocessor 123 (eg, an image signal processor or communication processor) may be implemented as part of other functionally related components (eg, the camera module 180 or the communication module 190). have.

The memory 130 may store various data used by at least one component of the electronic device 101 (eg, the processor 120 or the sensor module 176). The data may include, for example, software (eg, the program 140) and input data or output data for commands related thereto. The memory 130 may include a volatile memory 132 or a nonvolatile memory 134.

The program 140 may be stored as software in the memory 130, and may include, for example, an operating system 142, middleware 144, or an application 146.

The input device 150 may receive commands or data to be used for components (eg, the processor 120) of the electronic device 101 from outside (eg, a user) of the electronic device 101. The input device 150 may include, for example, a microphone, mouse, keyboard, or digital pen (eg, a stylus pen).

The audio output device 155 may output an audio signal to the outside of the electronic device 101. The audio output device 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback, and the receiver can be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from the speaker, or as part thereof.

The display device 160 may visually provide information to the outside of the electronic device 101 (eg, a user). The display device 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device. According to an embodiment, the display device 160 may include a touch circuitry configured to sense a touch, or a sensor circuit (eg, a pressure sensor) configured to measure the intensity of the force generated by the touch. have.

The audio module 170 may convert sound into an electrical signal, or vice versa. According to one embodiment, the audio module 170 acquires sound through the input device 150, or an external electronic device (eg, electronic) directly or wirelessly connected to the sound output device 155 or the electronic device 101 Device 102) (eg, speakers or headphones).

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the detected state can do. According to one embodiment, the sensor module 176 is, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biological sensor, a temperature It may include a sensor, a humidity sensor, or an illuminance sensor.

The interface 177 may support one or more designated protocols that can be used for the electronic device 101 to be directly or wirelessly connected to an external electronic device (eg, the electronic device 102). According to an embodiment, the interface 177 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (eg, the electronic device 102 ). According to an embodiment, the connection terminal 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 179 may convert electrical signals into mechanical stimuli (eg, vibration or movement) or electrical stimuli that the user can perceive through tactile or motor sensations. According to one embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and videos. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied to the electronic device 101. According to an embodiment, the power management module 388 may be implemented, for example, as at least a part of a power management integrated circuit (PMIC).

The battery 189 may supply power to at least one component of the electronic device 101. According to one embodiment, the battery 189 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishing and performing communication through the established communication channel. The communication module 190 operates independently of the processor 120 (eg, an application processor) and may include one or more communication processors supporting direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 may include a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg : Local area network (LAN) communication module, or power line communication module. Corresponding communication module among these communication modules includes a first network 198 (for example, a short-range communication network such as Bluetooth, WiFi direct, or infrared data association (IrDA)) or a second network 199 (for example, a cellular network, the Internet, or It may communicate with external electronic devices through a computer network (eg, a telecommunication network such as a LAN or WAN). These various types of communication modules may be integrated into a single component (eg, a single chip), or may be implemented as a plurality of separate components (eg, multiple chips). The wireless communication module 192 uses a subscriber information (eg, an international mobile subscriber identifier (IMSI)) stored in the subscriber identification module 196 in a communication network such as the first network 198 or the second network 199. The electronic device 101 can be identified and authenticated.

The antenna module 197 may transmit a signal or power to the outside (eg, an external electronic device) or receive it from the outside. According to an embodiment, the antenna module may include a single antenna including a conductor formed on a substrate (eg, a PCB) or a radiator made of a conductive pattern. According to an embodiment, the antenna module 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is selected from the plurality of antennas by, for example, the communication module 190. Can be. The signal or power may be transmitted or received between the communication module 190 and an external electronic device through the at least one selected antenna. According to some embodiments, other components (eg, RFIC) other than the radiator may be additionally formed as part of the antenna module 197.

At least some of the components are connected to each other through a communication method between peripheral devices (for example, a bus, a general purpose input and output (GPIO), a serial peripheral interface (SPI), or a mobile industry processor interface (MIPI)). Ex: command or data) can be exchanged with each other.

According to an embodiment, the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199. Each of the electronic devices 102 and 104 may be the same or a different type of device from the electronic device 101. According to an embodiment, all or some of the operations performed on the electronic device 101 may be performed on one or more external devices of the external electronic devices 102, 104, or 108. For example, when the electronic device 101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 can execute the function or service itself. In addition or in addition, one or more external electronic devices may be requested to perform at least a portion of the function or the service. The one or more external electronic devices receiving the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and deliver the result of the execution to the electronic device 101. The electronic device 101 may process the result, as it is or additionally, and provide it as at least part of a response to the request. To this end, cloud computing, distributed computing, or client-server computing technology can be used, for example.

The electronic device according to various embodiments disclosed in the present disclosure may be various types of devices. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device. The electronic device according to the exemplary embodiment of the present document is not limited to the aforementioned devices.

It should be understood that various embodiments of the document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, and include various modifications, equivalents, or substitutes of the corresponding embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of the noun corresponding to the item may include one or more of the items, unless the context clearly indicates otherwise. In this document, “A or B”, “at least one of A and B”, “or at least one of B,” “A, B or C,” “at least one of A, B and C,” and “B, Or each of the phrases such as “at least one of C” may include any one of the items listed together in the corresponding phrase of the phrases, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may be used to simply distinguish the component from other components, and to separate the components from other aspects (eg, importance or Order). Any (eg first) component is referred to as a “coupled” or “connected” to another (eg second) component, with or without the term “functionally” or “communically” When mentioned, it means that any of the above components can be connected directly to the other components (eg, by wire), wirelessly, or through a third component.

As used herein, the term "module" may include units implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic blocks, components, or circuits. The module may be an integrally configured component or a minimum unit of the component performing one or more functions or a part thereof. For example, according to an embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present disclosure may include one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). It may be implemented as software (e.g., program 140) that includes. For example, a processor (eg, processor 120) of a device (eg, electronic device 101) may call and execute at least one of one or more commands stored from a storage medium. This enables the device to be operated to perform at least one function according to the at least one command called. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The storage medium readable by the device may be provided in the form of a non-transitory storage medium. Here,'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (eg, electromagnetic waves), and this term is used when data is stored semi-permanently in a storage medium. It does not distinguish between temporary storage cases.

According to one embodiment, a method according to various embodiments disclosed in this document may be provided as being included in a computer program product. Computer program products can be traded between sellers and buyers as products. The computer program product may be distributed in the form of a device-readable storage medium (eg compact disc read only memory (CD-ROM)), or through an application store (eg Play StoreTM) or two user devices ( For example, it can be distributed directly (e.g., downloaded or uploaded) between smartphones). In the case of online distribution, at least a portion of the computer program product may be stored at least temporarily on a storage medium readable by a device such as a memory of a manufacturer's server, an application store's server, or a relay server, or may be temporarily generated.

According to various embodiments, each component (eg, module or program) of the above-described components may include a singular or a plurality of entities. According to various embodiments, one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg, modules or programs) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components the same or similar to that performed by the corresponding component among the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component may be executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations may be executed in a different order, or omitted. , Or one or more other actions can be added.

2 illustrates an example of a wireless charging environment 200 according to various embodiments.

Referring to FIG. 2, the electronic device 201 according to various embodiments (eg, the electronic device 102 of FIG. 1) (hereinafter also referred to as a “power transmission device”) is an external electronic device 202 (eg, For example, power may be wirelessly supplied to the electronic device 101 of FIG. 1 (hereinafter also referred to as a “power receiving device”), and the external electronic device 202 may wirelessly receive power. The electronic device 201 may be an electronic device operating in a power transmission mode. The external electronic device 202 may be an electronic device operating in a power reception mode.

According to various embodiments, the power transmission device 201 may include a power transmission circuit 211, a control circuit 212, a communication circuit 213, or a sensing circuit 214.

According to various embodiments of the present disclosure, the power transmission circuit 211 receives power from the outside and converts the voltage of the input power appropriately, a power adapter 211a, a power generation circuit 211b for generating power, or a transmission coil ( 211L) and a matching circuit 211c to maximize efficiency between the receiving coil 221L.

According to various embodiments of the present disclosure, the power transmission circuit 211 may include a power adapter 211a and a power generation circuit to enable power transmission to a plurality of power receiving devices (eg, a first external electronic device and a second external electronic device). 211b), the transmission coil 211L, or at least a part of the matching circuit 211c may be included.

According to various embodiments of the present disclosure, the power transmission circuit 211 may supply battery power or external power supplied to the power adapter 211a to the power generation circuit 211b using the power adapter 211a. According to various embodiments, the battery power may be a signal for obtaining power input to the power adapter 211a from a battery (not shown) of the electronic device 201. According to various embodiments, the external power may be a signal for acquiring power input to the power adapter 211a from another external electronic device (not shown) (eg, a travel adapter or a power supply).

According to various embodiments, the power transmission circuit 211 generates a signal for supplying power to the external electronic device 202 using the power generation circuit 211b, and the signal is transmitted to the transmission coil 221L Can be.

According to various embodiments of the present disclosure, the power transmission circuit 211 provides a first signal at a first frequency and a second external electronic device to provide first power to the first external electronic device using the power generation circuit 211b. 2 A second signal having a second frequency for providing power may be generated. The first signal of the first frequency and the second signal of the second frequency may be generated when the transmission coil 211L has a multi-coil structure.

According to various embodiments, the control circuit 212 performs overall control of the power transmission device 201, and generates various messages necessary for wireless power transmission to be transmitted to the communication circuit 213. In one embodiment, the control circuit 212 may calculate the power (or amount of power) to be transmitted to the power receiving device 202 based on the information received by the communication circuit 213. In one embodiment, the control circuit 212 may control the power transmission circuit 211 such that power generated by the transmission coil 211L is transmitted to the power reception device 202.

According to various embodiments, when the control circuit 212 transmits power to a plurality of power receiving devices (eg, a first external electronic device and a second external electronic device), the first control device 212 first The power generation circuit 211b may be controlled to generate a first signal at a first frequency for providing power and a second signal at a second frequency for providing second power to the second external electronic device. To this end, the transmission coil 211L may have a multi-coil structure.

According to various embodiments, the communication circuit 213 may include at least one of the first communication circuit 213a or the second communication circuit 213b. The first communication circuit 213a communicates with the first communication circuit 223a of the power receiving device 202 using, for example, a frequency equal to or adjacent to a frequency used for power transmission through the transmission coil 211L. can do.

The first communication circuit 213a may communicate with the first communication circuit 223a using the transmission coil 211L. Data (or communication signal) generated by the first communication circuit 213a may be transmitted through the transmission coil 211L. The first communication circuit 213a may transmit data to the power receiving device 202 using a frequency shift keying (FSK) modulation technique. According to various embodiments, the first communication circuit 213a may communicate with the first communication circuit 223a of the power receiving device 202 by causing the frequency of the power signal transmitted through the transmission coil 211L to be changed. have. Alternatively, the first communication circuit 213a may communicate with the first communication circuit 223a of the power receiving device 202 by allowing data or communication circuits to be included in the power signal generated by the power generation circuit 211b. For example, the first communication circuit 213a may express data by increasing or decreasing the frequency of the power transmission signal.

The second communication circuit 213b may communicate with the second communication circuit 223b of the power receiving device 202 using, for example, a frequency different from the frequency used for power transmission through the transmission coil 211L. Yes (for example, outband). For example, the second communication circuit 213b may use a power receiving device using any one of various short-range communication methods such as Bluetooth, Bluetooth low energy (BLE), Wi-Fi, and near field communication (NFC). Information related to the charging state of the power receiving device 202 from the second communication circuit 223b of 202 (for example, voltage value information after rectifier, rectified voltage value information (for example, Vrec), flowing in a coil or rectifying circuit Current information (eg, Iout), various packets, or messages can be obtained.

According to various embodiments, the sensing circuit 214 may include at least one sensor, and may detect at least one state of the power transmission device 202 using the at least one sensor.

According to various embodiments, the sensing circuit 214 may include at least one of a temperature sensor, a motion sensor, or a current (or voltage) sensor, and senses the temperature state of the power transmission device 201 using the temperature sensor It is possible to detect the movement state of the power transmission device 201 using a motion sensor, and the state of the output signal of the power transmission device 201 using a current (or voltage) sensor, for example, current Magnitude, voltage magnitude or power magnitude can be detected.

According to an embodiment, the current (or voltage) sensor may measure a signal in the power transmission circuit 211. For example, the current (or voltage) sensor may measure a signal in at least a portion of the transmission coil 211L, the matching circuit 211c, or the power generation circuit 211b. For example, the current (or voltage) sensor may include circuitry for measuring a signal at the front end of the transmitting coil 211L.

According to various embodiments, the sensing circuit 214 may be a circuit for foreign object detection (FOD).

According to various embodiments, the power receiving device 202 (eg, 101 in FIG. 1) includes a power receiving circuit 221 (eg, the power management module 188 in FIG. 1 ), a control circuit 222 (eg, FIG. Processor 120 of 1), communication circuit 223 (e.g., communication module 190 of FIG. 1), at least one sensor 224 (e.g., sensor module 176 of FIG. 1), display 225 (Eg, the display device 160 of FIG. 1 ), or a sensing circuit 226. In the description of the power receiving device 202, a configuration corresponding to the power transmitting device 201 may be partially omitted.

According to various embodiments, the power receiving circuit 221 includes a receiving coil 221L that wirelessly receives power from the power transmitting device 201, a matching circuit 221a, and a rectifying circuit that rectifies the received AC power to DC ( 221b), an adjustment circuit 221c for adjusting the charging voltage, a switch circuit 221d, or a battery 221e (eg, the battery 189 in FIG. 1 ).

According to various embodiments, the control circuit 222 may perform overall control of the power receiving device 202 and generate various messages necessary for wireless power transmission (or reception) to be transmitted to the communication circuit 223.

According to various embodiments, the communication circuit 223 may include at least one of the first communication circuit 223a or the second communication circuit 223b. The first communication circuit 223a may communicate with the power transmission device 201 through the receiving coil 221L.

The first communication circuit 223a may communicate with the first communication circuit 213a using the receiving coil 221L. For example, data (or communication signal) generated by the first communication circuit 223a may be transmitted using the receiving coil 221L. The first communication circuit 223a may transmit data to the power transmission device 201 using an amplitude shift keying (ASK) modulation technique. The second communication circuit 223b may communicate with the power transmission device 201 using any one of various short-range communication methods such as Bluetooth, BLE, Wi-Fi, and NFC.

According to various embodiments, the at least one sensor 224 may include at least one of a current/voltage sensor, a temperature sensor, an illuminance sensor, or a sound sensor.

According to various embodiments, the display 225 may display various display information required for wireless power transmission and reception.

According to various embodiments, the sensing circuit 226 may sense the power transmission device 201 by detecting a search signal or power received from the power transmission device 201. For example, a signal may be generated in the receiving coil 221L by a signal output from the power transmission device 201, and the sensing circuit 226 may include a receiving coil (in accordance with the signal generated by the receiving coil 221L) 221L) The power transmission device 201 may be detected by detecting a signal change at the input/output terminal, a matching circuit 221a signal change at the input/output terminal, or a signal change at the input/output terminal of the rectifying circuit 221b. According to various embodiments, the sensing circuit 226 may be included in the receiving circuit 221.

3 illustrates an example of a functional configuration of an electronic device according to various embodiments of the present disclosure. Such a functional configuration may be included in the electronic device 101 shown in FIG. 1 or the power receiving device 202 shown in FIG. 2. Hereinafter, various embodiments in which the functional configuration is included in the electronic device 101 may be described.

Referring to FIG. 3, the electronic device 101 includes a coil 305, a power receiving circuit 310, a capacitive voltage distribution circuit 320, a battery charging circuit 330, a communication circuit 335, and a control circuit 340. ), and a battery 350.

In various embodiments, the coil 305 may receive an alternating current (AC) signal for obtaining power from the electronic device 102 (hereinafter referred to as an external electronic device 102). For example, the external electronic device 102 may transmit the AC signal for providing wireless power to the electronic device 101 through the coil 270 using the power transmission circuit 360.

In various embodiments, the power receiving circuit 310 may receive the AC signal through the coil 305. In various embodiments, the power receiving circuit 310 may include a rectifier and a low dropout regulator (LDO). Depending on the embodiment, the low dropout regulator may be omitted. The power receiving circuit 310 may obtain a first DC signal generated based on the AC signal. In various embodiments, the first DC signal may mean a signal provided from the power receiving circuit 310 to the capacitive voltage distribution circuit 320. In various embodiments, the first DC signal may mean a signal provided directly from the power receiving circuit 310 to the battery charging circuit 330 without using the capacitive voltage distribution circuit 320. When the first DC signal is provided directly to the battery charging circuit 330, the first DC signal passes through a path bypassing the capacitive voltage distribution circuit 320 and is provided to the battery charging circuit 330 Can be. In various embodiments, when the power receiving circuit 310 includes the rectifier and a low dropout regulator, the first DC signal may mean a signal provided from the rectifier to the low dropout regulator. An example of the structure of the power receiving circuit 310 according to various embodiments will be described later with reference to FIG. 4.

In various embodiments, the capacitive voltage distribution circuit 320 may obtain a second DC signal generated based at least on the first DC signal. In various embodiments, when the first DC signal is a signal transmitted from the power receiving circuit 310, the capacitive voltage distribution circuit 320 sets the first voltage value of the first DC signal based on a specified voltage distribution ratio. By adjusting to generate a second DC signal having a second voltage value, the generated second DC signal can be provided to the battery charging circuit 330. In various embodiments, when the first DC signal is a signal provided from the rectifier included in the power receiving circuit 310 to the low dropout regulator, the capacitive voltage distribution circuit 320 receives the first DC signal. It can be processed using the low dropout regulator. For example, the capacitive voltage distribution circuit 320 processes the first DC signal using the low dropout regulator, and in this case adjusts the third voltage value of the generated DC signal based on a specified voltage distribution ratio. A second DC signal having the second voltage value may be generated. In various embodiments, the capacitive voltage distribution circuit 320 may provide the second DC signal to the battery charging circuit 330. Examples of functions of the capacitive voltage distribution circuit 320 according to various embodiments will be described later with reference to FIG. 4.

In various embodiments, the battery charging circuit 330 may obtain the first DC signal directly from the power receiving circuit 310 or the second DC signal from the capacitive voltage distribution circuit 320. For example, when the first DC signal is transmitted to the battery charging circuit 330 by bypassing the capacitive voltage distribution circuit 320 or directly, the battery charging circuit 330 is connected to the battery charging circuit 330. The second DC signal having a second voltage value is generated by adjusting the first voltage value of the first DC signal based on a specified voltage distribution ratio using an included capacitive voltage distribution circuit, and the second DC A signal may be provided to the battery 350. For another example, when the second DC signal is transmitted from the capacitive voltage distribution circuit 320 to the battery charging circuit 330, the battery charging circuit 330 includes the capacitive included in the battery charging circuit 330. A third DC signal having a third voltage value is generated by adjusting the second voltage value of the second DC signal based on a specified voltage distribution ratio using a voltage distribution circuit, and the third DC signal is a battery. It can be provided to 350. According to an embodiment, the second DC signal or the third DC signal generated in the battery charging circuit 330 may be processed by power management circuitry in the battery charging circuit 330. In this case, the battery 350 may receive the DC signal processed from the second DC signal or the third DC signal from the battery charging circuit 330.

In various embodiments, the communication circuit 335 may receive data from the control circuit 340. In various embodiments, the communication circuit 335 may generate a packet by encoding the data using an encoder included in the communication circuit 335. In various embodiments, the communication circuit 335 may generate a modulated packet by modulating the generated packet using a modulator included in the communication circuit 335. In various embodiments, the communication circuit 335 may transmit the modulated packet to the external electronic device 102 through the coil 305. According to an embodiment, the communication circuit 335 may demodulate and decode data received from the external electronic device 102 through the coil 305 and then provide it to the control circuit 340. In various embodiments, the communication circuit 335 may include the first communication circuit 223a described above with reference to FIG. 2.

3 illustrates an example in which the communication circuit 335 is connected to the coil 305, various implementations may be applied in the electronic device 101. For example, the communication circuit 335 may be electrically connected to the power receiving circuit 310 or may be included in the power receiving circuit 310.

In various embodiments, the control circuit 340 is operatively coupled to the power receiving circuit 310, the capacitive voltage distribution circuit 320, the battery charging circuit 330, the communication circuit 335, or a combination thereof ( Or connected). In various embodiments, the control circuit 340 may be implemented as the main processor 121 or the coprocessor 123 illustrated in FIG. 1, or implemented as a combination of the main processor 121 and the coprocessor 123 It may be.

In various embodiments, the control circuit 340 may obtain a current value of the first DC signal. For example, the first DC signal may be a signal provided to the low dropout regulator from the rectifier included in the power receiving circuit 310. For another example, the first DC signal may be a signal provided from the power receiving circuit 310 to the capacitive voltage distribution circuit 320. For another example, the first DC signal may be a signal provided from the power receiving circuit 310 to the battery charging circuit 330. In various embodiments, the control circuit 340 may acquire a current value of the first DC signal using a sensing circuit. However, it is not limited thereto.

In various embodiments, the control circuit 340 may acquire the current value of the second DC signal. For example, the second DC signal may be a signal generated by the battery charging circuit 330 based on the first DC signal transmitted directly from the power receiving circuit 310 to the battery charging circuit 330. have. For another example, the second DC signal may be a signal provided from the capacitive voltage distribution circuit 320 to the battery charging circuit 330. In various embodiments, the control circuit 340 may acquire a current value of the second DC signal using a sensing circuit. However, it is not limited thereto.

In various embodiments, the control circuit 340 may obtain a current value of the third DC signal. For example, the third DC signal is generated in the battery charging circuit 330 based on the second DC signal provided from the capacitive voltage distribution circuit 320 to the battery charging circuit 330, and the battery It may be a signal provided to the 350. In various embodiments, the control circuit 340 may acquire a current value of the third DC signal using a sensing circuit. However, it is not limited thereto.

In various embodiments, the control circuit 340 may compare the obtained current value with a reference current value. For example, the control circuit 340 may compare the obtained current value with the reference current value while confirming that the charging mode of the battery 350 is within a constant current (CC) mode. In various embodiments, the control circuit 340 may compare the obtained current value and the reference current value using a comparator included in the control circuit 340. In various embodiments, the reference current value may be a value configured for charging the battery 350 so that the battery 350 has targeted performance. In various embodiments, the reference current value may be a fixed value or a value changed according to a state of charge of the battery 350. In various embodiments, the reference current value may be stored in at least one resistor included in the control circuit 340. In various embodiments, the reference current value stored in the at least one resistor may be updated by a control circuit 340.

In various embodiments, the control circuit 340 may obtain information on a difference value between the obtained current value and the reference current value by comparing the obtained current value and the reference current value. In various embodiments, information about the difference value may be expressed in various ways. For example, information on a difference value between the obtained current value and the reference current value may be configured as |obtained current value-reference current value|. For another example, information on a difference value between the obtained current value and the reference current value may include a first ratio of the obtained current value to the reference current value or the reference current value to the obtained current It may also consist of a second ratio of values. As another example, information on a difference value between the obtained current value and the reference current value may be configured to a level corresponding to |acquired current value-reference current value| among a plurality of designated levels. In this case, a plurality of values respectively mapped to the plurality of designated levels may be previously shared with the external electronic device 102. For another example, information on a difference value between the obtained current value and the reference current value may be configured as a level corresponding to the first ratio or the second ratio among the plurality of designated levels. However, it is not limited thereto.

In various embodiments, the control circuit 340 may obtain a voltage value of the first DC signal. For example, the first DC signal may be a signal provided to the low dropout regulator from the rectifier included in the power receiving circuit 310. For another example, the first DC signal may be a signal provided from the power receiving circuit 310 to the capacitive voltage distribution circuit 320. For another example, the first DC signal may be a signal provided from the power receiving circuit 310 to the battery charging circuit 330. In various embodiments, the control circuit 340 may acquire a voltage value of the first DC signal using a sensing circuit. However, it is not limited thereto.

In various embodiments, the control circuit 340 may obtain a voltage value of the second DC signal. For example, the second DC signal may be a signal generated by the battery charging circuit 330 based on the first DC signal transmitted directly from the power receiving circuit 310 to the battery charging circuit 330. have. For another example, the second DC signal may be a signal provided from the capacitive voltage distribution circuit 320 to the battery charging circuit 330. In various embodiments, the control circuit 340 may acquire a voltage value of the second DC signal using a sensing circuit. However, it is not limited thereto.

In various embodiments, the control circuit 340 may obtain a voltage value of the third DC signal. For example, the third DC signal is generated in the battery charging circuit 330 based on the second DC signal provided from the capacitive voltage distribution circuit 320 to the battery charging circuit 330, and the battery It may be a signal provided to the 350. In various embodiments, the control circuit 340 may acquire a voltage value of the third DC signal using a sensing circuit. However, it is not limited thereto.

In various embodiments, the control circuit 340 may compare the obtained voltage value with a reference voltage value. For example, while confirming that the charging mode of the battery 350 is within a constant voltage (CV) mode, the control circuit 340 may compare the obtained voltage value with a reference voltage value. In various embodiments, the control circuit 340 may compare the obtained voltage value and the reference voltage value using a comparator included in the control circuit 340. In various embodiments, the reference voltage value may be a value configured for charging the battery 350 so that the battery 350 has targeted performance. In various embodiments, the reference voltage value may be a fixed value or a value changed according to a state of charge of the battery 350. In various embodiments, the reference voltage value may be stored in at least one resistor included in the control circuit 340. In various embodiments, the reference voltage value stored in the at least one resistor may be updated by a control circuit 340. In various embodiments, the control circuit 340 may obtain information on a difference value between the obtained voltage value and the reference voltage value by comparing the obtained voltage value and the reference voltage value. In various embodiments, information about the difference value may be expressed in various ways. For example, information on a difference value between the obtained voltage value and the reference voltage value may be configured as |obtained voltage value-reference voltage value|. For another example, the information on the difference value between the obtained voltage value and the reference voltage value may include the first ratio of the obtained voltage value to the reference voltage value or the reference voltage value to the obtained voltage It may also consist of a second ratio of values. For another example, information on a difference value between the obtained voltage value and the reference voltage value may be configured as a level corresponding to |obtained voltage value-reference voltage value | among a plurality of designated levels. In this case, a plurality of values respectively mapped to the plurality of designated levels may be previously shared with the external electronic device 102. For another example, information on a difference value between the obtained current value and the reference current value may be configured as a level corresponding to the first ratio or the second ratio among the plurality of designated levels. However, it is not limited thereto.

In various embodiments, the control circuit 340 may generate a packet for adjusting the AC signal using the communication circuit 335 based on the obtained current value. In various embodiments, the control circuit 340 may transmit the generated packet to the external electronic device 102 through the coil 305 using the communication circuit 335. In various embodiments, the packet may be a control error packet (CEP) defined in a wireless power transfer/transmission (WPT) standard.

In various embodiments, the control circuit 340 may include information on a difference value between the reference current value and the obtained current value, information on a difference value between the reference voltage value and the obtained voltage value, and a battery 350 ) A packet including information for indicating whether the charging mode is in the CC mode or in the CV mode, or a combination thereof, through the coil 305 using the communication circuit 335 through an external electronic device ( 102).

For example, the control circuit 340 is a communication circuit 335 among information on a difference value between the reference current value and the obtained current value and information on a difference value between the reference voltage value and the obtained voltage value ) Using a multiplexer (MUX, multiplexer) for selecting information to be transmitted to the external electronic device 102 through the coil 305, the control circuit 340 is the reference current value and the obtained current The packet 305 using the communication circuit 335 includes a packet including information on the difference value between the values and information on the difference between the reference voltage value and the obtained voltage value using the communication circuit 335. Can be transmitted to the external electronic device 102. In order to control the selection of the multiplexer, setting values input to the multiplexer may be provided from at least one register in the control circuit 340. In various embodiments, the set value may be updated by the control circuit 340 based on the charging mode of the battery 350. For example, when the set value is a value indicating that the charging mode of the battery 350 is the CC mode, the control circuit 340 determines the difference value between the reference current value selected by the multiplexer and the obtained current value. A packet including information about the information may be transmitted to the external electronic device 102 through the coil 305 using the communication circuit 335. For another example, when the set value is a value indicating that the charging mode of the battery 350 is a CV mode, the control circuit 340 determines the difference value between the reference voltage value and the obtained voltage value selected by the multiplexer. A packet including information about the information may be transmitted to the external electronic device 102 through the coil 305 using the communication circuit 335.

For another example, the coil using the communication circuit 335 of the information about the difference value between the reference current value and the obtained current value and the information about the difference value between the reference voltage value and the obtained voltage value When a multiplexer (MUX, multiplexer) for selecting information to be transmitted to the external electronic device 102 through 305 is included in the external electronic device 102, the control circuit 340 obtains the reference current value and the Information on the difference value between the obtained current values, information on the difference value between the reference voltage value and the obtained voltage value, and whether the charging mode of the battery 350 is in the CC mode or the CV mode A packet including information for indicating can be transmitted to the external electronic device 102 through the coil 305 using the communication circuit 335. The external electronic device 102 uses the multiplexer included in the external electronic device 102 for information on the difference value between the reference current value and the obtained current value, and between the reference voltage value and the obtained voltage value. Information for controlling charging of the battery 350 of the electronic device 101 may be selected from among information on the difference value of.

In various embodiments, the power receiving circuit 310 may receive another AC signal through the coil 305 from the external electronic device 102 to provide an adjusted gain based on the transmitted packet. For example, the external electronic device 102 demodulates and decodes the packet, thereby information on a difference value between the reference current value and the obtained current value, and a difference between the reference voltage value and the obtained voltage value Information about a value, information for indicating whether the charging mode of the battery 350 is in the CC mode or in the CV mode, or a combination thereof may be obtained. The external electronic device 102 generates the other AC signal having a different gain from the gain of the AC signal based on the obtained information, and coils the generated AC signal with the generated other AC signal. It can be transmitted to the electronic device 101 through (370).

In various embodiments, the power receiving circuit 310 may acquire a fourth DC signal based on the other AC signal. For example, the power receiving circuit 310 may obtain the fourth DC signal by rectifying the other AC signal.

In various embodiments, the battery charging circuit 330 may generate a fifth DC signal based on the fourth DC signal, and provide the generated fifth DC signal to the battery 350. In various embodiments, the battery charging circuit 330 generates the fifth DC signal using the DC signal generated in the capacitive voltage distribution circuit 320 based on the fourth DC signal, and the fifth DC A signal may be provided to the battery 350.

As described above, the electronic device 101 according to various embodiments of the present disclosure provides information about a difference value between a reference current value and a current value of a signal generated in the power receiving circuit 310, a reference current value and a capacitive voltage distribution A packet containing information about the difference value between the current value of the signal generated in the circuit 320, or information about the difference value between the reference current value and the current value of the signal generated in the battery charging circuit 330 By transmitting the to the external electronic device 102 through the coil 305, it is possible to improve the charging efficiency of the battery 350 based on the control of the external electronic device 102. Since the electronic device 101 according to various embodiments of the present disclosure can improve the charging efficiency of the battery 350 under the control of the external electronic device 102, at least a portion of the power receiving circuit 310, the capacitive voltage distribution At least a portion of the circuit 320, at least a portion of the battery charging circuit 330, or a combination thereof can be configured to operate in an open-loop (open-loop), which is generated by the charging of the battery 350 Can be reduced.

4 illustrates another example of a functional configuration of an electronic device according to various embodiments of the present disclosure. Such a functional configuration may be included in the electronic device 101 shown in FIG. 1, the electronic device 202 shown in FIG. 2, or the electronic device 101 shown in FIG. 3. Hereinafter, various embodiments in which the functional configuration is included in the electronic device 101 may be described.

Referring to FIG. 4, the electronic device 101 may include a coil 410, a power receiving circuit 415, a capacitive voltage distribution circuit 425, a battery charging circuit 440, and a battery 470. . In various embodiments, some of the coil 410, the power receiving circuit 415, the capacitive voltage distribution circuit 425, the battery charging circuit 440, and the battery 470 may be omitted.

The coil 410 may receive an AC signal to acquire power by wireless from the external electronic device 102 (eg, a charging pad supporting wireless charging). In various embodiments, the coil 410 may provide the received AC signal to the power receiving circuit 415. In various embodiments, the coil 410 may include the coil 221L illustrated in FIG. 2 or the coil 305 illustrated in FIG. 3. However, it is not limited thereto.

In various embodiments, the power receiving circuit 415 may convert an AC signal received from the coil 410 into a DC signal. In various embodiments, the power receiving circuit 415 may transfer the DC signal converted from the AC signal to the capacitive voltage distribution circuit 425, the battery charging circuit 440, the battery 470, or a combination thereof. . For example, the power receiving circuit 415 may transfer the DC signal converted from the AC signal to the capacitive voltage distribution circuit 425, to the battery charging circuit 440, or to the battery 470. have. However, it is not limited thereto. The power receiving circuit 415 may include the power receiving circuit 310 shown in FIG. 3.

The power receiving circuit 415 may include a matching circuit 421, a rectifying circuit 423, and a low dropout regulator (LDO) 429. Depending on the embodiment, at least one of the matching circuit 421 and the low dropout regulator 429 may be omitted. According to an embodiment, the matching circuit 421 may be located outside the power receiving circuit 415. For example, the matching circuit 421 may be disposed between the coil 410 and the power receiving circuit 415.

The matching circuit 421 may be electrically connected to the coil 410. In various embodiments, the matching circuit 421 may receive an AC signal transmitted from the external electronic device 102 and received by the coil 410 from the coil 410. In various embodiments, the matching circuit 421 may transmit the AC signal received from the coil 410 to the rectifier 423. In various embodiments, the matching circuit 421 may maximize efficiency for transmitting and receiving AC signals between the coil 410 and the coil 404 of the external electronic device 102. In various embodiments, the matching circuit 421 may include a matching element. In FIG. 4, the matching circuit 421 is illustrated as including the capacitors C1 and C2, but is not limited thereto. For example, the matching circuit 421 may include a capacitor, an inductor, a resistor, or a combination thereof.

The rectifying circuit 423 may be electrically connected to the matching circuit 421. In various embodiments, the rectifying circuit 423 comprises a full bridge circuit comprising switches composed of four MOSFETs (M1, M2, M3, and M4) (metal oxide semiconductor field effect transistor (MOSFET)). The AC signal transmitted from the matching circuit 421 may be converted into a DC signal. In various embodiments, when the rectifying circuit 423 is composed of a full bridge circuit, the switch of the full bridge circuit is not only a MOSFET, but also a MOSFET, a bipolar junction transistor (BJT), a diode, or a combination thereof. thereof).

The rectifying circuit 423 may be electrically connected to the coil 410 to receive the signal generated by the coil 410. The rectifying circuit 423 may generate a DC signal by rectifying the AC signal received from the external electronic device 102. The rectifying circuit 423 provides the generated DC signal to the capacitive voltage distribution circuit 425 through the low dropout regulator 429, or charges the generated DC signal through the low dropout regulator 429 to the battery. Circuit 440 may be provided directly. For another example, if the power receiving circuit 415 does not include a low dropout regulator 429, the rectifying circuit 423 provides the generated DC signal to the capacitive voltage distribution circuit 425, or The generated DC signal may be directly provided to the battery charging circuit 440. In various embodiments, providing the DC signal directly to the battery charging circuit 440 is performed by changing the path through the switch S controlled by the control circuit (eg, the control circuit 340 of FIG. 3). Can be.

The rectifying circuit 423 converts the DC signal converted from the AC signal received from the external electronic device 102 into a capacitive voltage distribution circuit 425, a battery charging circuit 440, a battery 470, or a combination thereof. thereof). For example, the rectifying circuit 423 may transfer the DC signal converted from the AC signal to the capacitive voltage distribution circuit 425. For another example, the rectifying circuit 423 may directly transfer the DC signal to the battery charging circuit 440 by bypassing the capacitive voltage distribution circuit 425 using the switch S. In this regard, it can be assumed that the specified voltage ratio of the capacitive voltage distribution circuit 425 is 2:1, and the specified voltage ratio of the capacitive voltage distribution circuit included in the battery charging circuit 440 is 2:1. In addition, for charging the battery 470, it may be assumed that the voltage value of the signal provided to the battery 470 is 5V, and the current value of the signal provided to the battery 470 is 8A. In the control circuit 340, when the voltage of the signal output from the rectifying circuit 423 is 20V, and the current of the signal output from the rectifying circuit 423 is 2A, the voltage value of the signal provided to the battery 470 is 5V. The switch from the rectifying circuit 423 to the battery charging circuit 440 through the capacitive voltage distribution circuit 425 is used so that the current value of the signal provided to the battery 470 becomes 8A. Can be created. In the control circuit 340, when the voltage of the signal output from the rectifying circuit 423 is 10V, and the current of the signal output from the rectifying circuit 423 is 4A, the voltage value of the signal provided to the battery 470 is 5V. , And a direct path from the rectifying circuit 423 to the battery charging circuit 440 may be generated using the switch S so that the current value of the signal provided to the battery 470 is 8A. However, it is not limited thereto.

The low dropout regulator 429 is electrically connected to the rectifying circuit 423 to receive a DC signal output from the rectifying circuit 423.

The capacitive voltage distribution circuit 425 may include the capacitive voltage distribution circuit 320 shown in FIG. 3.

The capacitive voltage distribution circuit 425 may be electrically connected to the rectifying circuit 423. In various embodiments, the capacitive voltage distribution circuit 425 may adjust the voltage of the input signal according to a specified voltage distribution ratio. For example, when the specified voltage distribution ratio is 2:1, the capacitive voltage distribution circuit 425 may adjust and output the voltage of the input signal to 1/2. At this time, the current of the signal output from the capacitive voltage distribution circuit 425 having a set voltage distribution ratio of 2:1 may be twice as large as the current of the signal input to the capacitive voltage distribution circuit 425. For another example, when the specified voltage distribution ratio is 4:1, the capacitive voltage distribution circuit 425 may adjust and output the voltage of the input signal to 1/4. At this time, the current of the signal output from the capacitive voltage distribution circuit 425 having a set voltage distribution ratio of 4:1 may be four times larger than the current of the signal input to the capacitive voltage distribution circuit 425. In various embodiments, the capacitive voltage distribution circuit 425 may transmit a voltage-regulated signal to the battery charging circuit 440 or the battery 470. For example, the capacitive voltage distribution circuit 425 may transmit a voltage-regulated signal to the battery charging circuit 440. For another example, the capacitive voltage distribution circuit 425 may transmit a voltage-regulated signal to the battery 470.

The battery charging circuit 440 may include the battery charging circuit 330 illustrated in FIG. 3.

The battery charging circuit 440 may be electrically connected to the power receiving circuit 415. In various embodiments, when the battery charging circuit 440 is electrically connected to the power receiving circuit 415, the battery charging circuit 440 is a capacitive voltage distribution circuit according to the on-off state of the switch (S) ( The DC signal may be received from 425, or the DC signal may be received directly from the power receiving circuit 415 based on the bypass of the capacitive voltage distribution circuit 425. In various embodiments, the battery charging circuit 440 may adjust the voltage of the input signal according to a specified voltage distribution ratio. For example, when the specified voltage distribution ratio is 2:1, the battery charging circuit 440 may adjust the voltage of the input signal to 1/2 and output it. At this time, the current of the signal output from the battery charging circuit 440 having a set voltage distribution ratio of 2:1 may be twice as large as the current of the signal input to the battery charging circuit 440. For another example, when the specified voltage distribution ratio is 4:1, the battery charging circuit 440 may adjust and output the voltage of the input signal to 1/4. At this time, the current of the signal output from the battery charging circuit 440 having a specified voltage distribution ratio of 4:1 may be four times greater than the current of the signal input to the battery charging circuit 440. In various embodiments, the battery charging circuit 440 may transmit a voltage-controlled signal to the battery 470.

The battery charging circuit 440 may adjust the voltage, current, or combination thereof of the input signal to transfer the battery to the battery 470. In various embodiments, the battery charging circuit 440 may adjust the voltage, current, or combination thereof of the input signal according to the set power output information. For example, when the battery charging circuit 440 delivers the input signal to the battery 470, the battery charging circuit 440 is the voltage and current of the input signal according to the power output information set for the battery 470 , Or a combination thereof (eg, adjusting the current, voltage, or a combination of the input signals according to the voltage of the battery 470), and may transmit the adjusted signal to the battery 470.

The battery 470 may acquire a signal from the battery charging circuit 440 and charge power according to the obtained signal. In various embodiments, the battery 470 may include a battery 189 illustrated in FIG. 1, a battery 221e illustrated in FIG. 2, or a battery 350 illustrated in FIG. 3. In various embodiments, the battery 470 may have a structure in which at least two batteries are connected in series, parallel, or a combination thereof.

5 illustrates an example of a functional configuration of a power receiving circuit and a control circuit according to various embodiments. This functional configuration may be included in the power receiving circuit 310 shown in FIG. 3, the power receiving circuit 415 shown in FIG. 4, the control circuit 340 shown in FIG. 3, or a combination thereof. In various embodiments mentioned below, the power receiving circuit 310 and the control circuit 340 may be referred to.

Referring to FIG. 5, the power receiving circuit 310 of the electronic device 101 may receive an AC signal from the external electronic device 102 through the coil 305. In various embodiments, the AC signal may be transmitted to a rectifier 510.

The rectifier 510 may generate a DC signal by rectifying the AC signal. In various embodiments, the rectifier 510 may transmit the DC signal to a low dropout regulator (LDO). In various embodiments, when the low dropout regulator 520 is not included in the power receiving circuit 310, the DC signal may be transmitted to the outside of the power receiving circuit 310. For example, the DC signal is transmitted to a capacitive voltage distribution circuit (eg, capacitive voltage distribution circuit 320 of FIG. 3) or to a battery charging circuit (eg, battery charging circuit 330 of FIG. 3). Can be. In various embodiments, the current value IRECT of the DC signal delivered to the low dropout regulator 520 may be provided to the control circuit 340. In various embodiments, the voltage value VRECT of the DC signal delivered to the low dropout regulator 520 may be provided to the control circuit 340.

The low dropout regulator 520 may generate another DC signal by processing the DC signal received from the rectifier 510. The other DC signal may be transmitted to the outside of the power receiving circuit 310. For example, the other DC signal may be transmitted to the capacitive voltage distribution circuit 320 or to the battery charging circuit 330. In various embodiments, the current value IRX_OUT of the other DC signal transmitted to the outside of the power receiving circuit 310 may be provided to the control circuit 340. In various embodiments, the voltage value VRX_OUT of the other DC signal transmitted to the outside of the power receiving circuit 310 may be provided to the control circuit 340.

The control circuit 340 may obtain the current value IRECT of the DC signal or the current value IRX_OUT of the other DC signal. For example, the control circuit 340 includes the current value (IRECT) of the DC signal or the current value (IRX_OUT) of the other DC signal in the sensing circuit or control circuit 340 included in the power receiving circuit 310. It can be obtained by using the sensed circuit. The control circuit 340 may obtain the voltage value VRECT of the DC signal or the voltage value VRX_OUT of the other DC signal. For example, the control circuit 340 includes the voltage value VRECT of the DC signal or the voltage value VRX_OUT of the other DC signal in the sensing circuit or control circuit 340 included in the power receiving circuit 310. It can be obtained by using the sensed circuit.

In various embodiments, the control circuit 340 adjusts the AC signal based on the obtained current value (eg, the current value (IRECT) of the DC signal or the current value (IRX_OUT) of the other DC signal). The packet for the communication can be generated using the communication circuit 335. In various embodiments, the control circuit 340 may transmit the generated packet to the external electronic device 102 through the coil 305 using the communication circuit 335. In various embodiments, the packet may be a control error packet (CEP) defined in a wireless power transfer/transmission (WPT) standard.

The control circuit 340 uses the comparator 523 to calculate the obtained current value (eg, the current value of the DC signal (IRECT) or the current value of the other DC signal (IRX_OUT)) and the reference current value (IREF). By comparison, information on the difference value (±Δ_I,R) between the obtained current value and the reference current value (IREF) can be obtained. The reference current value IREF may be stored in at least one register, for example, as shown in the register map 529 shown, and input from the at least one register to the comparator 523. The reference current value IREF may be updated by the control circuit 340 according to the state of the battery (eg, the battery 350 of FIG. 3 ). In various embodiments, the control circuit 340 may use the comparator 523 while the charging mode of the battery 350 is in the CC mode to obtain the obtained current value (eg, the current value of the DC signal (IRECT) or By comparing the current value (IRX_OUT) of another DC signal with a reference current value (IREF), information on a difference value (±Δ_I,R) between the obtained current value and the reference current value can be obtained. . In various embodiments, information about the difference value (±Δ_I,R) may be input to the multiplexer 531.

The control circuit 340 uses the comparator 526 to calculate the obtained voltage value (eg, the voltage value (VRECT) of the DC signal or the voltage value (VRX_OUT) of the other DC signal) and the reference voltage value (VREF). By comparison, information on the difference value (±Δ_V,R) between the obtained voltage value and the reference voltage value VREF can be obtained. Although not illustrated in FIG. 5, the reference voltage value VREF may be stored in the at least one resistor, and input to the comparator 526 from the at least one resistor. The reference voltage value VREF may be updated by the control circuit 340 according to the state of the battery 350. For example, while the charging mode of the battery 350 is in the CV mode, the control circuit 340 uses the comparator 526 to obtain the obtained voltage value (eg, the voltage value of the DC signal (VRECT) or the By comparing the voltage value (VRX_OUT) of another DC signal with a reference voltage value (VREF), information on a difference value (±Δ_V,R) between the obtained voltage value and the reference voltage value can be obtained. In various embodiments, information about the difference value (±Δ_V,R) may be input to the multiplexer 531.

The control circuit 340 may select one of the difference value (±Δ_I,R) and the difference value (±Δ_V,R) using the multiplexer 531. For example, while the control circuit 340 identifies that the charging mode of the battery 350 is within the CC mode, the difference value (±Δ_I,R) and the difference value (±Δ_V, using the multiplexer 531 are used. The difference value (±Δ_I,R) among R) can be selected. For another example, while the control circuit 340 identifies that the charging mode of the battery 350 is within the CV mode, the difference value (±Δ_I,R) and the difference value (±Δ_V) using the multiplexer 531 are used. ,R) The difference value (±Δ_V,R) can be selected. In various embodiments, the control circuit 340 may control a difference value selected by the multiplexer 531 by changing a setting value input to the multiplexer 531. For example, the setting value may be stored in at least one register, such as the register map 529, and may be input to the multiplexer 531 from the at least one register. The set value may be updated by the control circuit 340 according to the charging mode of the battery 350 identified by the control circuit 340.

In various embodiments, the control circuit 340 encodes the information on the difference value selected by the multiplexer 531 using the encoder 533 of the communication circuit 335 to receive a packet including the information on the difference value. Can be created. In various embodiments, the control circuit 340 may obtain a modulated packet by modulating the generated packet using a modulator 535 of the communication circuit 335.

In various embodiments, the control circuit 340 may transmit the obtained packet to the external electronic device 102 through the coil 305 using the communication circuit 335. The external electronic device 102 may receive the packet through the coil 537 using the communication circuit 539 of the external electronic device 102. The packet may be a control error packet (CEP) defined in the WPT standard.

In various embodiments, the external electronic device 102 may obtain a value (±Δ _T ) for adjusting gain by demodulating the received packet using a demodulator 541 (demodulator) of the communication circuit 539. have. In various embodiments, the external electronic device 102 uses an PID controller 543 to adjust the gain of the other AC signal to be transmitted to the electronic device 101 from the obtained value (± _ΔT ) from the inverter ( The operating frequency (fop), operating voltage (Vop), operating duty cycle (Dop) of 545), or a combination thereof may be calculated. In various embodiments, the external electronic device 102 uses the calculated operating frequency (fop), operating voltage (Vop), operating duty cycle (Dop), or a combination of the inverter 545 to calculate the inverter 545 By controlling, the other AC signal can be transmitted to the electronic device 101. Since the other AC signal can provide a different gain from the AC signal, the electronic device 101 can charge the battery 350 with a targeted charging performance.

6 illustrates another example of a functional configuration of a power receiving circuit and a control circuit according to various embodiments. This functional configuration may be included in the power receiving circuit 310 shown in FIG. 3, the power receiving circuit 415 shown in FIG. 4, the control circuit 340 shown in FIG. 3, or a combination thereof. In various embodiments mentioned below, the power receiving circuit 310 and the control circuit 340 may be referred to.

Referring to FIG. 6, the power receiving circuit 310 of the electronic device 101 may receive an AC signal from the external electronic device 102 through the coil 305. In various embodiments, the AC signal may be transmitted to a rectifier (610).

The rectifier 610 may generate a DC signal by rectifying the AC signal. In various embodiments, the rectifier 610 may transmit the DC signal to a low dropout regulator (LDO). In various embodiments, when the low dropout regulator 620 is not included in the power receiving circuit 310, the DC signal may be transmitted to the outside of the power receiving circuit 310. For example, the DC signal may be transmitted to a capacitive voltage distribution circuit (eg, capacitive voltage distribution circuit 320 of FIG. 3) or to a battery charging circuit (eg, battery charging circuit 330 of FIG. 3). Can be. In various embodiments, the current value IRECT of the DC signal delivered to the low dropout regulator 620 may be provided to the control circuit 340. In various embodiments, the voltage value VRECT of the DC signal delivered to the low dropout regulator 620 may be provided to the control circuit 340.

The low dropout regulator 620 may generate another DC signal by processing the DC signal received from the rectifier 610. The other DC signal may be transmitted to the outside of the power receiving circuit 310. For example, the other DC signal may be transmitted to the capacitive voltage distribution circuit 320 or to the battery charging circuit 330. In various embodiments, the current value IRX_OUT of the other DC signal transmitted to the outside of the power receiving circuit 310 may be provided to the control circuit 340. In various embodiments, the voltage value VRX_OUT of the other DC signal transmitted to the outside of the power receiving circuit 310 may be provided to the control circuit 340.

The control circuit 340 may obtain the current value IRECT of the DC signal or the current value IRX_OUT of the other DC signal. For example, the control circuit 340 includes the current value (IRECT) of the DC signal or the current value (IRX_OUT) of the other DC signal in the sensing circuit or control circuit 340 included in the power receiving circuit 310. It can be obtained by using the sensed circuit. The control circuit 340 may obtain the voltage value VRECT of the DC signal or the voltage value VRX_OUT of the other DC signal. For example, the control circuit 340 includes the voltage value VRECT of the DC signal or the voltage value VRX_OUT of the other DC signal in the sensing circuit or control circuit 340 included in the power receiving circuit 310. It can be obtained by using the sensed circuit.

In various embodiments, the control circuit 340 adjusts the AC signal based on the obtained current value (eg, the current value (IRECT) of the DC signal or the current value (IRX_OUT) of the other DC signal). The packet for the communication can be generated using the communication circuit 335. In various embodiments, the control circuit 340 may transmit the generated packet to the external electronic device 102 through the coil 305 using the communication circuit 335. In various embodiments, the packet may be a control error packet (CEP) defined in a wireless power transfer/transmission (WPT) standard.

The control circuit 340 uses the comparator 623 to calculate the obtained current value (eg, the current value of the DC signal (IRECT) or the current value of the other DC signal (IRX_OUT)) and the reference current value (IREF). By comparison, information on the difference value (±Δ_I,R) between the obtained current value and the reference current value (IREF) can be obtained. Although not illustrated in FIG. 6, the reference current value (IREF) may be stored in at least one resistor, and may be input to the comparator 623 from the at least one resistor. The reference current value IREF may be updated by the control circuit 340 according to the state of the battery (eg, the battery 350 of FIG. 3 ). In various embodiments, the control circuit 340 may use the comparator 623 while the charging mode of the battery 350 is in the CC mode to obtain the obtained current value (eg, the current value of the DC signal (IRECT) or By comparing the current value (IRX_OUT) of another DC signal with a reference current value (IREF), information on a difference value (±Δ_I,R) between the obtained current value and the reference current value can be obtained. .

The control circuit 340 uses the comparator 626 to calculate the obtained voltage value (eg, the voltage value of the DC signal (VRECT) or the voltage value of the other DC signal (VRX_OUT)) and the reference voltage value (VREF). By comparison, information on the difference value (±Δ_V,R) between the obtained voltage value and the reference voltage value VREF can be obtained. Although not illustrated in FIG. 6, the reference voltage value (IREF) may be stored in the at least one resistor, and may be input to the comparator 626 from the at least one resistor. The reference voltage value VREF may be updated by the control circuit 340 according to the state of the battery 350. In various embodiments, the control circuit 340 may use the comparator 626 while the charging mode of the battery 350 is in the CV mode to obtain the obtained voltage value (eg, the voltage value of the DC signal (VRECT) or By comparing the voltage value (VRX_OUT) of another DC signal with a reference voltage value (VREF), information on a difference value (±Δ_V,R) between the obtained voltage value and the reference voltage value can be obtained. .

The control circuit 340 may provide information on the difference value (±Δ_I,R) and information on the difference value (±Δ_V,R) to the encoder 629 of the communication circuit 335. In various embodiments, the control circuit 340 may include information for indicating the charging mode of the battery 350 (eg, information indicating that the charging mode of the battery 350 is within the CC mode or the charging mode of the battery 350 ). Information indicating that it is in the CV mode) to the encoder 629 of the communication circuit 335.

The control circuit 340 uses the encoder 629 to indicate information about the difference value (±Δ_I,R), information about the difference value (±Δ_V,R), and the charging mode of the battery 350 By encoding the information, a packet including information on the difference value (±Δ_I,R), information on the difference value (±Δ_V,R), and information for indicating the charging mode of the battery 350 can be generated. . In various embodiments, the control circuit 340 may obtain a modulated packet by modulating the generated packet using a modulator 631 (modulator) of the communication circuit 335.

In various embodiments, the control circuit 340 may transmit the obtained packet to the external electronic device 102 through the coil 305 using the communication circuit 335. The external electronic device 102 may receive the packet through the coil 635 using the communication circuit 633 of the external electronic device 102.

In various embodiments, the external electronic device 102 demodulates the received packet using a demodulator 637 (demodulator) of the communication circuit 633, thereby providing information about the difference value (±Δ_I,R) and the difference value ( Information about ±Δ_V,R) and information for indicating the charging mode of the battery 350 may be obtained.

In various embodiments, the external electronic device 102 displays information (eg, a difference value (±Δ_I,R), a difference value (±Δ_V,R), and a charging mode of the battery 350 in the multiplexer 639 (eg : CC mode or CV mode information) can be input. In various embodiments, when the information for indicating the charging mode of the battery 350 is configured in the CC mode, the multiplexer 639, the difference value (±Δ_I,R) and the difference value (±Δ_V,R) among the difference values (±Δ_V,R) ±Δ_I,R or ± _ΔT ) may be selected, and the selected difference value (±Δ_I,R or ± _ΔT ) may be provided to the PID controller 641. In various embodiments, when the information for indicating the charging mode of the battery 350 is configured in the CV mode, the multiplexer 639 is a difference value among difference values (±Δ_I,R) and difference values (±Δ_V,R) ±ΔV,R or ± _ΔT ) may be selected, and the selected difference value (±Δ_V,R or ± _ΔT ) may be provided to the PID controller 641.

In various embodiments, the external electronic device 102 uses the PID controller 641 to adjust the gain of the other AC signal to be transmitted to the electronic device 101 from the selected difference value (± _ΔT ) from the inverter ( The operating frequency (fop), the operating voltage (Vop), the operating duty cycle (Dop) of 643, or a combination thereof can be calculated. In various embodiments, the external electronic device 102 uses the calculated operating frequency (fop), operating voltage (Vop), operating duty cycle (Dop), or a combination of the inverter 643 to calculate the inverter 643. By controlling, the other AC signal can be transmitted to the electronic device 101. Since the other AC signal can provide a different gain from the AC signal, the electronic device 101 can charge the battery 350 with a targeted charging performance.

7 illustrates an example of a functional configuration of a battery charging circuit and a control circuit according to various embodiments. Such a functional configuration may be included in the battery charging circuit 330 illustrated in FIG. 3, the battery charging circuit 440 illustrated in FIG. 4, the control circuit 340 illustrated in FIG. 3, or a combination thereof. In various embodiments mentioned below, the battery charging circuit 330 and the control circuit 340 may be referred to.

Referring to FIG. 7, the battery charging circuit 330 of the electronic device 101 may include a power receiving circuit (eg, the power receiving circuit 310 of FIG. 3) or a capacitive voltage distribution circuit (eg, the capacitive voltage of FIG. 3) DC signal may be received from the distribution circuit 320. In various embodiments, the current value IBUS of the DC signal received by the battery charging circuit 330 may be provided to the control circuit 340. In various embodiments, the voltage value VBUS of the DC signal received by the battery charging circuit 330 may be provided to the control circuit 340.

The battery charging circuit 330 may generate another DC signal by processing the received DC signal. For example, when the DC signal is provided from the power receiving circuit 310 to the battery charging circuit 330 through the capacitive voltage distribution circuit 320, the battery charging circuit 330 is the battery charging circuit 330 By using the capacitive voltage distribution circuit included therein, a voltage value of the DC signal may be changed to a different voltage value according to a specified voltage distribution ratio, and the other DC signal having the changed different voltage value may be generated. For example, when the voltage value of the DC signal output from the power receiving circuit 310 is 20V and the current value is 2A, the capacitive voltage distribution circuit 320 changes the voltage value of 10V from the voltage value of 20V, A DC signal having a current value of 4A changed from the current value of 2A may be output to the battery charging circuit 330. The battery charging circuit 330 changes the voltage value of 10V of the DC signal output from the capacitive voltage distribution circuit 320 to a voltage value of 5V according to a specified voltage distribution ratio, and a voltage value of 5V and a current value of 8A. It may generate the other DC signal having a.

For another example, when the DC signal is provided directly to the battery charging circuit 330 by bypassing the capacitive voltage distribution circuit 320 from the power receiving circuit 310, the battery charging circuit 330 is the battery charging circuit Using the capacitive voltage distribution circuit included in 330, the voltage value of the DC signal can be changed to a different voltage value according to a specified voltage distribution ratio, and the other DC signal having the changed different voltage value can be generated. have. For example, when the voltage value of the DC signal output from the power receiving circuit 310 is 10V and the current value is 4A, the control circuit 340 controls the switch S of FIG. 4 to control the DC signal. It can be provided directly to the battery charging circuit 330. The battery charging circuit 330 changes the voltage value of 10V of the DC signal received directly from the power receiving circuit 310 to a voltage value of 5V according to a specified voltage distribution ratio, and a voltage value of 5V and a current value of 8A. It may generate the other DC signal having a.

In various embodiments, the other DC signal generated by the battery charging circuit 330 may be provided to the battery 350. In various embodiments, the current value (IBAT) of the other DC signal provided to the battery 350 may be provided to the control circuit 340. In various embodiments, the voltage value VBAT of the other DC signal provided to the battery 350 may be provided to the control circuit 340.

The control circuit 340 may obtain a current value (IBUS) of the DC signal or a current value (IBAT) of the other DC signal. For example, the control circuit 340 includes the current value (IBUS) of the DC signal or the current value (IBAT) of the other DC signal in the sensing circuit or control circuit 340 included in the battery charging circuit 330. It can be obtained by using the sensed circuit. The control circuit 340 may obtain a voltage value (VBUS) of the DC signal or a voltage value (VBAT) of the other DC signal. For example, the control circuit 340 includes the voltage value (VBUS) of the DC signal or the voltage value (VBAT) of the other DC signal in the sensing circuit or control circuit 340 included in the power receiving circuit 310. It can be obtained by using the sensed circuit.

In various embodiments, the control circuit 340 adjusts the AC signal based on the obtained current value (eg, the current value (IBUS) of the DC signal or the current value (IBAT) of the other DC signal). The packet for the communication can be generated using the communication circuit 335. In various embodiments, the control circuit 340 may transmit the generated packet to the external electronic device 102 through the coil 305 using the communication circuit 335. In various embodiments, the packet may be a control error packet (CEP) defined in a wireless power transfer/transmission (WPT) standard.

The control circuit 340 uses the comparator 723 to calculate the obtained current value (eg, the current value (IBUS) of the DC signal or the current value (IBAT) of the other DC signal) and the reference current value (IREF). By comparison, information on the difference value (±Δ_I,R) between the obtained current value and the reference current value (IREF) can be obtained. The reference current value (IREF) may be stored in at least one register, such as the register map 729, and input from the at least one register to the comparator 723. The reference current value IREF may be updated by the control circuit 340 according to the state of the battery 350. In various embodiments, the control circuit 340 may use the comparator 723 while the charging mode of the battery 350 is in the CC mode to obtain the obtained current value (eg, the current value of the DC signal (IBUS) or By comparing the current value (IBAT) and the reference current value (IREF) of the other DC signal, information on a difference value (±Δ_I,R) between the obtained current value and the reference current value can be obtained. . In various embodiments, information about the difference value (±Δ_I,R) may be input to the multiplexer 731.

The control circuit 340 uses the comparator 726 to calculate the obtained voltage value (eg, the voltage value (VBUS) of the DC signal or the voltage value (VBAT) of the other DC signal) and the reference voltage value (VREF). By comparison, information on the difference value (±Δ_V,R) between the obtained voltage value and the reference voltage value VREF can be obtained. Although not illustrated in FIG. 7, the reference voltage value VREF may be stored in the at least one resistor, and may be input to the comparator 726 from the at least one resistor. The reference voltage value VREF may be updated by the control circuit 340 according to the state of the battery 350. For example, while the charging mode of the battery 350 is in the CV mode, the control circuit 340 uses the comparator 726 to obtain the obtained voltage value (eg, the voltage value of the DC signal (VBUS) or the By comparing the voltage value (VBAT) of another DC signal and the reference voltage value (VREF), information on a difference value (±Δ_V,R) between the obtained voltage value and the reference voltage value can be obtained. In various embodiments, information about the difference value (±Δ_V,R) may be input to the multiplexer 731.

The control circuit 340 may select one of the difference value (±Δ_I,R) and the difference value (±Δ_V,R) using the multiplexer 731. For example, while the control circuit 340 identifies that the charging mode of the battery 350 is within the CC mode, the multiplexer 731 uses the difference value (±Δ_I,R) and the difference value (±Δ_V, The difference value (±Δ_I,R) among R) can be selected. For another example, while the control circuit 340 identifies that the charging mode of the battery 350 is within the CV mode, the difference value (±Δ_I,R) and the difference value (±Δ_V) using the multiplexer 731 are used. ,R) The difference value (±Δ_V,R) can be selected. In various embodiments, the control circuit 340 may control a difference value selected by the multiplexer 731 by changing a setting value input to the multiplexer 731. For example, the setting value may be stored in at least one register, such as the register map 729, and may be input to the multiplexer 731 from the at least one register. The set value may be updated by the control circuit 340 according to the charging mode of the battery 350 identified by the control circuit 340.

In various embodiments, the control circuit 340 encodes the information on the difference value selected by the multiplexer 731 using the encoder 733 of the communication circuit 335 to receive a packet including the information on the difference value. Can be created. In various embodiments, the control circuit 340 may obtain a modulated packet by modulating the generated packet using a modulator 735 of the communication circuit 335.

In various embodiments, the control circuit 340 may transmit the obtained packet to the external electronic device 102 through the coil 305 using the communication circuit 335. The external electronic device 102 may receive the packet through the coil 737 using the communication circuit 739 of the external electronic device 102.

In various embodiments, the external electronic device 102 may obtain a value (±Δ _T ) for adjusting gain by demodulating the received packet using a demodulator 741 (demodulator) of the communication circuit 739. have. In various embodiments, the external electronic device 102 uses the PID controller 743 to adjust the gain of the other AC signal to be transmitted to the electronic device 101, and the inverter from the obtained value (± _ΔT ) ( The operating frequency (fop), operating voltage (Vop), operating duty cycle (Dop) of 745), or a combination thereof can be calculated. In various embodiments, the external electronic device 102 uses the calculated operating frequency (fop), operating voltage (Vop), operating duty cycle (Dop), or a combination of the inverter 745 to calculate the inverter 745 By controlling, the other AC signal can be transmitted to the electronic device 101. Since the other AC signal can provide a different gain from the AC signal, the electronic device 101 can charge the battery 350 with a targeted charging performance.

An electronic device (eg, the electronic device 101) according to various embodiments as described above includes a rechargeable battery (eg, the battery 350) and an external electronic device (eg, an external electronic device) Generated based on a coil (eg, coil 305) configured to receive an alternating current (AC) signal to obtain power from (by wireless) wirelessly, and the AC signal received through the coil A power receive (RX) circuitry (e.g., power receiving circuit 310) configured to obtain a first direct current (DC) signal to be electrically connected to the battery for charging the battery ( electrically connected to) a battery charging circuitry configured to acquire a second DC signal generated based at least on the first DC signal (eg, battery charging circuit 330), and operatively with the coil ( A communication circuit operably coupled to and configured to transmit a packet to the external electronic device through the coil (eg, a communication circuit 335) and the communication circuit, the power receiving circuit, and the battery charging circuit. And a control circuitry (eg, control circuit 340) which is operably coupled, wherein the control circuit comprises the current value of the first DC signal or the current value of the second DC signal. Acquiring, and based on the current value of the first DC signal or the current value of the second DC signal, the coil for adjusting the AC signal received from the external electronic device using the communication circuit It may be configured to transmit to the external electronic device through.

In various embodiments, the coil may be further configured to wirelessly receive another AC signal adjusted based on the packet from the external electronic device, and the power receiving circuit is based on the other AC signal. The battery charging circuit may be further configured to obtain a fourth DC signal generated based on the third DC signal, and the fourth DC signal. It may be further configured to provide to the battery.

In various embodiments, the power receiving circuit may include a rectifier and a low dropout regulator (LDO), wherein the first DC signal is rectified from the AC signal and from the rectifier It may be a signal provided to a low dropout regulator, and the control circuit acquires the current value of the first DC signal, and based on the current value of the first DC signal, the packet uses the communication circuit. Therefore, it may be configured to transmit to the external electronic device through the coil.

In various embodiments, the power receiving circuit may include a rectifier and a low dropout regulator (LDO), wherein the first DC signal includes the AC signal as the rectifier and the low dropout. It may be a signal obtained by processing using a regulator and provided to the battery charging circuit from the low dropout regulator, wherein the control circuit acquires the current value of the first DC signal, and the Based on the current value, it may be configured to transmit the packet to the external electronic device through the coil using the communication circuit.

In various embodiments, the electronic device receives the first DC signal output from the power receiving circuit, and adjusts the first voltage value of the first DC signal based on a specified voltage distribution ratio to thereby obtain a second voltage value. And a capacitive voltage divider circuitry configured to generate the second DC signal having and provide the second DC signal to the battery charging circuit, wherein the control circuit comprises: It may be configured to acquire the current value of the second DC signal, and to transmit the packet to the external electronic device through the coil using the communication circuit based on the current value of the second DC signal.

In various embodiments, the battery charging circuit may include capacitive voltage divider circuitry, and the second DC signal may include the first DC signal by the capacitive voltage distribution circuit. One voltage value may be a signal provided to the battery with a second voltage value adjusted based on a specified voltage distribution ratio, and the control circuit acquires the current value of the second DC signal, and the second DC The packet may be configured to transmit the packet to the external electronic device through the coil based on the current value of the signal.

In various embodiments, the control circuit may acquire a current value of the first DC signal or a current value of the second DC signal while the charging mode of the battery is within a constant current (CC) mode, and While the charging mode is in CC mode, based on the current value of the first DC signal or the current value of the second DC signal, the packet for adjusting the AC signal is transmitted through the coil using the communication circuit. It may be configured to transmit to the external electronic device.

In various embodiments, the control circuit may acquire a voltage value of the first DC signal or a voltage value of the second DC signal while the charging mode of the battery is within a constant voltage (CV) mode, and While the charging mode is in the CV mode, based on the voltage value of the first DC signal or the voltage value of the second DC signal, the packet for adjusting the AC signal uses the communication circuit to open the coil. It may be configured to transmit to the external electronic device.

In various embodiments, the communication circuit may include an encoder and a modulator, and the control circuit acquires a current value of the first DC signal or a current value of the second DC signal, A first comparator configured to output a current value of the first DC signal or a difference value between a current value of the second DC signal and a reference current value, a voltage value of the first DC signal, or a voltage of the second DC signal And a second comparator configured to acquire a value and output a voltage value of the first DC signal or a difference value between a voltage value of the second DC signal and a reference voltage value, wherein the control circuit comprises: The current value of the first DC signal output from the comparator or the difference value between the current value of the second DC signal and the reference current value and the voltage value of the first DC signal output from the second comparator or the second The difference value between the voltage value of the DC signal and the reference voltage value is selected according to the charging mode of the battery, and configured to provide a control signal generated based on the selected difference value to the communication circuit The encoder may be configured to generate the packet based on the control signal obtained from the control circuit, and provide the packet to the modulator, wherein the modulator is a designated modulation scheme. Based on the may be configured to modulate the packet, the control circuit may be configured to transmit the modulated packet to the external electronic device through the coil using the communication circuit.

In various embodiments, the packet may include information about a current value of the first DC signal or a difference value between the current value of the second DC signal and the reference current value.

In various embodiments, the communication circuit may include an encoder and a modulator, and the control circuit acquires a current value of the first DC signal or a current value of the second DC signal, A first comparator configured to output a current value of the first DC signal or a difference value between a current value of the second DC signal and a reference current value, a voltage value of the first DC signal, or a voltage of the second DC signal And a second comparator configured to acquire a value and output a voltage value of the first DC signal or a difference value between a voltage value of the second DC signal and a reference voltage value, wherein the encoder comprises: the first comparator. Information related to the current value of the first DC signal output from or a difference value between the current value of the second DC signal and the reference current value, the voltage value of the first DC signal output from the second comparator, or the Configured to generate the packet including information related to a difference value between a voltage value of a second DC signal and the reference voltage value, and information about the charging mode of the battery, and to provide the generated packet to the modulator The modulator may be configured to modulate the packet based on a designated modulation scheme, and the control circuit may transmit the modulated packet through the coil through the coil using the communication circuit. It can be configured to transmit to an electronic device.

In various embodiments, the power receiving circuit may receive, from the external electronic device, another AC signal adjusted based on the packet through the coil, and the other AC signal may include the first DC The current value of the signal or the difference value between the current value of the second DC signal and the reference current value, and the voltage value of the first DC signal or the difference value between the voltage value of the second DC signal and the reference voltage value It can be generated in the external electronic device based on a selected value, and the selected value is selected by a multiplexer included in the external electronic device, based on information on the charging mode of the battery included in the packet. Can be.

In various embodiments, the other AC signal may be generated by changing an operating frequency, an operating voltage, an operating duty cycle, or a combination thereof of an inverter included in the external electronic device.

An electronic device (eg, the electronic device 101) according to various embodiments as described above includes a rechargeable battery (eg, the battery 350) and an electric device for obtaining power from an external electronic device. A coil (for example, coil 305) configured to receive an alternating current (AC) signal wirelessly, and a first direct current (DC) signal generated based on the AC signal received through the coil A power receive (RX) circuitry (e.g., power receive circuit 310) configured to be acquired, and electrically connected to the battery for charging the battery and connected to the first DC signal A battery charging circuitry (e.g., battery charging circuit 330) configured to acquire a second DC signal generated based at least on, and operatively coupled to the coil A control circuit operatively coupled to the communication circuit (eg, communication circuit 335) configured to transmit a packet to the external electronic device through the communication circuit, the power receiving circuit, and the battery charging circuit. (control circuitry) (e.g., control circuit 340), the control circuit, while the charging mode of the battery is within the constant current (CC) mode, the current value and reference of the first DC signal A packet including information on a first difference value between current values or information on a second difference value between the current value of the second DC signal and the reference current value is transmitted through the coil using the communication circuit. In response to detecting that the charging mode of the battery is switched from the CC mode to a constant voltage (CV) mode by transmitting to an external electronic device, Another packet including information on a third difference value between a voltage value and a reference voltage value or information on a fourth difference value between the voltage value of the second DC signal and the reference voltage value is used by using the communication circuit. It may be configured to transmit to the external electronic device through the coil.

In various embodiments, the electronic device may further include a sensing circuit operatively coupled to the battery charging circuit and operatively coupled to the control circuit, wherein the control circuit is obtained using the sensing circuit. It may be configured to switch the charging mode of the battery from the CC mode to the CV mode, based on the voltage value of the battery.

In various embodiments, the control circuit may include at least one resistor, a first comparator configured to output the first difference value between the current value of the first DC signal and the reference current value, and the first DC signal. A second comparator configured to output the third difference value between the voltage value of and the reference voltage value, and of the first difference value output from the first comparator and the third difference value output from the second comparator And a multiplexer configured to select one difference value based on information stored in the register, the control circuit in response to detecting that the charging mode of the battery is switched from the CC mode to the CV mode. By changing the information stored in the register, the third difference value is selected using the multiplexer, and the other packet including the information on the third difference value is transmitted to the external electronic through the coil using the communication circuit. It can be configured to transmit to the device.

An electronic device (eg, the external electronic device 102) according to various embodiments as described above is a coil configured to wirelessly transmit an AC signal for providing power to the external electronic device (eg, the coil 370 )), a communication circuit (for example, communication circuit 539) configured to receive a packet from the external electronic device through the coil, and an inverter (eg, inverter 545) operatively coupled to the coil. ), and a control circuit operatively coupled to the communication circuit and the inverter, wherein the control circuit uses the communication circuit to receive a first AC signal for charging a rechargeable battery of the external electronic device. To the external electronic device through the coil, and after transmitting the first AC signal, receive a packet including information about the current value from the external electronic device through the coil using the communication circuit, , Distinguishing from the first AC signal by controlling the inverter based on the information on the current value, generating a second AC signal for charging the battery of the external electronic device, and generating the second AC signal It may be configured to transmit to the external electronic device through the coil using a communication circuit.

In various embodiments, the gain of the second AC signal may be different from the gain of the first AC signal.

In various embodiments, the control circuit may use the inverter to determine the operating frequency, operating voltage, operating duty cycle, or combination thereof of the inverter based on the information about the current value. It can be configured to generate a second AC signal.

In various embodiments, the communication circuit may include a demodulator configured to demodulate the packet, and the control circuit may provide information about the current value obtained from the demodulated packet with PID (proportional-integral) It may be configured to determine an operating frequency, an operating voltage, an operating duty cycle, or a combination thereof by processing using a -derivative) control unit.

8 illustrates an example of an operation of an electronic device according to various embodiments of the present disclosure. Such an operation may be performed by the electronic device 101 shown in FIG. 1, the electronic device 101 shown in FIG. 3, or the control circuit 340 of the electronic device 101 shown in FIG. 3.

Referring to FIG. 8, in operation 801, a control circuit (eg, the control circuit 340 of FIG. 3) may acquire a current value of the first DC signal or a current value of the second DC signal. In various embodiments, the first DC signal is generated based on an AC signal received from an external electronic device (eg, the external electronic device 102 of FIG. 3) through a coil (eg, the coil 305 of FIG. 3 ). It may be a signal obtained by the power receiving circuit (eg, the power receiving circuit 310 of FIG. 3 ). In various embodiments, the second DC signal may be a signal generated based at least on the first DC signal and obtained by a battery charging circuit (eg, the battery charging circuit 330 of FIG. 3 ). In various embodiments, the control circuit 340 may acquire a current value of one of the current value of the first DC signal and the current value of the second DC signal according to the design of the electronic device 101.

In operation 803, the control circuit 340 uses the communication circuit (for example, the communication circuit 335 of FIG. 3) to adjust the AC signal based on the obtained current value. It can be transmitted to the external electronic device 102 through. In various embodiments, the control circuit 340 uses the communication circuit 335 to transmit the packet including information on the difference value between the obtained current value and the reference current value through the coil 305 to the external electronic device. It can also be sent to (102). In various embodiments, the control circuit 340 may provide information on a difference value between the obtained current value and the reference current value while the charging mode of the battery (eg, the battery 350 of FIG. 3) is in the CC mode. A packet including a may be transmitted to the external electronic device 102 through the coil 305 using the communication circuit 335. In various embodiments, the packet may be transmitted from the electronic device 101 to the external electronic device 102 to adjust the gain of the AC signal received from the external electronic device 102. In various embodiments, after transmitting the packet, the power receiving circuit 310 may receive another AC signal different from the AC signal from the external electronic device 102 through the coil 305. In various embodiments, the gain of the other AC signal is different from the gain of the AC signal because it is adjusted based on information about a difference value between the obtained current value and the reference current value included in the transmitted packet. Can be. In various embodiments, since the gain of the other AC signal is adjusted based on information about a difference value between the obtained current value and the reference current value included in the transmitted packet, the target of the battery 350 is targeted. Charging performance can be satisfied.

As described above, since the electronic device 101 according to various embodiments transmits a packet generated based on the obtained current value to the external electronic device 102, at least a portion of the power receiving circuit 310, capacity At least a portion of the sex voltage distribution circuit 320 and at least a portion of the battery charging circuit 330 may be configured as an open loop. Since at least a portion of the power receiving circuit 310, at least a portion of the capacitive voltage distribution circuit 320, and at least a portion of the battery charging circuit 330 can be configured in an open loop, the electronic device 101 can be configured to use a battery ( It is possible to reduce the heat generated by the charging of 350), it is possible to enhance the charging efficiency.

9 illustrates another example of an operation of an electronic device according to various embodiments of the present disclosure. Such an operation may be performed by the electronic device 101 shown in FIG. 1, the electronic device 101 shown in FIG. 3, or the control circuit 340 of the electronic device 101 shown in FIG. 3.

Referring to FIG. 9, in operation 901, the control circuit (eg, the control circuit 340 of FIG. 3) is a second DC signal or information about a first difference value between the current value of the first DC signal and the reference current value. A packet including information on the second difference value between the current value and the reference current value of the coil using a communication circuit (eg, the communication circuit 335 of FIG. 3) (eg, the coil 305 of FIG. 3) It can be transmitted to the external electronic device (for example, the external electronic device 102 of FIG. 3). In various embodiments, the first DC signal is generated based on an AC signal received from the external electronic device 102 through the coil 305, and a power receiving circuit (eg, the power receiving circuit 310 of FIG. 3) It may be a signal obtained by. In various embodiments, the second DC signal may be a signal generated based at least on the first DC signal and obtained by a battery charging circuit (eg, the battery charging circuit 330 of FIG. 3 ). In various embodiments, information on the first difference value between the current value of the first DC signal and the reference current value or the second difference value between the current value of the second DC signal and the reference current value The packet including information about the battery may be transmitted to the external electronic device 102 while the charging mode of the battery (eg, the battery 350 of FIG. 3) is in the CC mode.

In operation 903, the control circuit 340 may detect that the charging mode of the battery 350 is changed from the CC mode to the CV mode. In various embodiments, the control circuit 340 is based on the voltage value of the battery 350 obtained by using the sensing circuit operatively coupled to the battery 350 or the battery charging circuit 330, the battery 350 It may be determined to change the charging mode of the CC mode to the CV mode, or it may be detected that the charging mode of the battery 350 is changed from the CC mode to the CV mode.

In operation 905, the control circuit 340, in response to the detection, information about the third difference value between the voltage value of the first DC signal and the reference voltage value or the voltage value and reference voltage value of the second DC signal Another packet including information on the fourth difference value therebetween may be transmitted to the external electronic device 102 through the coil 305 using the communication circuit 335. For example, the control circuit 340 may include a multiplexer configured to select one difference value among information on the first difference value and information on the third difference value, or information on the second difference value and the fourth value. By changing the setting of the multiplexer configured to select one of the difference values, information on the third difference value or information on the fourth difference value can be obtained. The control circuit 340 generates the other packet including the information on the third difference value or the information on the fourth difference value using the communication circuit 335, and the generated other packet on the communication circuit ( 335) to transmit to the external electronic device 102 through the coil 305.

As described above, the electronic device 101 according to various embodiments may provide enhanced charging efficiency by changing information included in a packet according to a charging mode of the battery 350.

10 illustrates an example of an operation of an external electronic device according to various embodiments of the present disclosure. Such an operation may include the external electronic device 102 shown in FIG. 1, the external electronic device 102 shown in FIG. 3, the external electronic device 102 shown in FIG. 4, and the external electronic device 102 shown in FIG. 5. , It may be performed by the external electronic device 102 shown in FIG. 6 or the external electronic device 102 shown in FIG. 7.

Referring to FIG. 10, in operation 1001, the external electronic device 102 is a first for charging a battery (eg, the battery 350 of FIG. 3) of the electronic device (eg, the electronic device 101 of FIG. 3 ). An AC signal may be transmitted to the electronic device 101 through a coil (eg, the coil 370 of FIG. 3) using a power transmission circuit (eg, the power transmission circuit 360 of FIG. 3 ).

In operation 1003, after transmitting the first AC signal, the external electronic device 102 may receive a packet including information about a current value from the electronic device 101 through the coil 370. The information on the current value is the information on the difference value between the current value of the first DC signal and the reference current value defined through the description of FIGS. 8 or 9 or between the current value of the second DC signal and the reference current value. It can correspond to information about the difference value.

In operation 1005, the external electronic device 102 is distinguished from the first AC signal by controlling an inverter included in the external electronic device 102 based on the information on the current value, and the battery of the electronic device 101 A second AC signal for charging 350 may be generated. For example, the external electronic device 102 may adjust the operating frequency, operating voltage, operating duty cycle, or combination thereof of the inverter included in the external electronic device 102 based on the information about the current value. have. For example, the external electronic device 102, based on the information on the current value, to transmit the second AC signal configured to provide the targeted gain to the electronic device 101, the external electronic device 102 It is possible to adjust the operating frequency, operating voltage, operating duty cycle, or a combination thereof of the inverter included in.

In operation 1007, the external electronic device 102 may transmit the second AC signal to the electronic device 101 through the coil 370 using the power transmission circuit 360. Since the second AC signal is configured to provide a targeted gain based on information about the current value, the electronic device 101 receiving the second AC signal charges the battery 350 with the targeted charging performance can do.

As described above, the external electronic device 102 according to various embodiments of the present disclosure may control charging of the battery 350 of the electronic device 101 based on information on the current value received from the electronic device 101. . The external electronic device 102 according to various embodiments of the present disclosure performs charging control of the battery 350, thereby enhancing the charging performance of the battery 350 of the electronic device 101 and reducing heat generated by the electronic device 101. It can assist you to do it.

Methods according to embodiments described in the claims or specification of the present disclosure may be implemented in the form of hardware, software, or a combination of hardware and software.

When implemented in software, a computer readable storage medium storing one or more programs (software modules) may be provided. One or more programs stored on a computer-readable storage medium are configured to be executable by one or more processors in an electronic device. The one or more programs include instructions that cause an electronic device to execute methods according to embodiments described in the claims or specification of the present disclosure.

Such programs (software modules, software) include random access memory, non-volatile memory including flash memory, read only memory (ROM), and electrically erasable programmable ROM. (EEPROM: electronic erasable programmable read only memory), magnetic disc storage device, compact disc-ROM (CD-ROM), digital versatile discs (DVDs) or other forms It can be stored in an optical storage device, a magnetic cassette. Or it may be stored in a memory composed of some or all of these combinations. Also, a plurality of configuration memories may be included.

In addition, the program may be through a communication network composed of a communication network such as the Internet, an intranet, a local area network (LAN), a wide LAN (WLAN), or a storage area network (SAN), or a combination thereof. It can be stored in an attachable storage device that can be accessed. Such a storage device can access a device performing an embodiment of the present disclosure through an external port. In addition, a separate storage device on the communication network may access a device that performs embodiments of the present disclosure.

In the specific embodiments of the present disclosure described above, the components included in the disclosure are expressed in singular or plural according to the specific embodiments presented. However, the singular or plural expressions are appropriately selected for the situation presented for convenience of description, and the present disclosure is not limited to the singular or plural components, and even the components expressed in plural are composed of singular or Even the expressed components may be composed of a plurality.

Meanwhile, in the detailed description of the present disclosure, specific embodiments have been described. However, various modifications are possible without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the described embodiments, but should be determined not only by the scope of the claims described below, but also by the scope and equivalents of the claims.

Claims (15)

In an electronic device, A rechargeable battery; A coil configured to wirelessly receive an alternating current (AC) signal for obtaining power from an external electronic device; A power receive (RX) circuitry configured to obtain a first direct current (DC) signal generated based on the AC signal received through the coil; A battery charging circuitry electrically connected to the battery for charging the battery and configured to obtain a second DC signal generated based at least on the first DC signal; A communication circuit operably coupled to the coil and configured to transmit a packet to the external electronic device through the coil; And And a control circuitry operably coupled with the communication circuit, the power receiving circuit, and the battery charging circuit, wherein the control circuit comprises: Obtain the current value of the first DC signal or the current value of the second DC signal, Based on the current value of the first DC signal or the current value of the second DC signal, the packet for adjusting the AC signal received from the external electronic device is transmitted through the coil through the coil using the communication circuit. An electronic device configured to transmit to an electronic device. The method according to claim 1, The coil, Further configured to wirelessly receive another AC signal adjusted based on the packet from the external electronic device, The power receiving circuit, Further configured to acquire a third DC signal generated based on the other AC signal, The battery charging circuit, It is further configured to acquire a fourth DC signal generated based on the third DC signal, And an electronic device further configured to provide the fourth DC signal to the battery. The method according to claim 1, The power receiving circuit, It includes a rectifier (rectifier) and a low dropout regulator (LDO), The first DC signal, Is a signal rectified from the AC signal and provided to the low dropout regulator from the rectifier, The control circuit, Obtaining the current value of the first DC signal, Based on the current value of the first DC signal, the electronic device is configured to transmit the packet to the external electronic device through the coil using the communication circuit. The method according to claim 1, The power receiving circuit, It includes a rectifier (rectifier) and a low dropout regulator (LDO), The first DC signal, It is obtained by processing the AC signal using the rectifier and the low dropout regulator, and is a signal provided to the battery charging circuit from the low dropout regulator, The control circuit, Obtaining the current value of the first DC signal, Based on the current value of the first DC signal, the electronic device is configured to transmit the packet to the external electronic device through the coil using the communication circuit. The method according to claim 1, Receiving the first DC signal output from the power receiving circuit, and adjusting the first voltage value of the first DC signal based on a specified voltage distribution ratio to generate the second DC signal having a second voltage value and , A capacitive voltage divider circuitry configured to provide the second DC signal to the battery charging circuit; The control circuit, Obtaining the current value of the second DC signal, And an electronic device configured to transmit the packet to the external electronic device through the coil based on the current value of the second DC signal. The method according to claim 1, wherein the battery charging circuit, Includes a capacitive voltage divider circuitry, The second DC signal, The first voltage value of the first DC signal by the capacitive voltage distribution circuit is a signal provided to the battery with a second voltage value adjusted based on a specified voltage distribution ratio, The control circuit, Obtaining the current value of the second DC signal, And an electronic device configured to transmit the packet to the external electronic device through the coil based on the current value of the second DC signal. The method according to claim 1, The control circuit, While the charging mode of the battery is within a constant current (CC) mode, a current value of the first DC signal or a current value of the second DC signal is obtained, While the charging mode of the battery is in the CC mode, based on the current value of the first DC signal or the current value of the second DC signal, the packet for adjusting the AC signal is transmitted using the communication circuit. An electronic device configured to transmit to the external electronic device through a coil. The method according to claim 7, wherein the control circuit, While the charging mode of the battery is within a constant voltage (CV) mode, a voltage value of the first DC signal or a voltage value of the second DC signal is obtained, While the charging mode of the battery is in the CV mode, based on the voltage value of the first DC signal or the voltage value of the second DC signal, the packet for adjusting the AC signal is used by using the communication circuit. An electronic device configured to transmit to the external electronic device through the coil. The method according to claim 8, wherein the communication circuit, It includes an encoder and a modulator, The control circuit, Configured to obtain a current value of the first DC signal or a current value of the second DC signal, and output a current value of the first DC signal or a difference value between a current value of the second DC signal and a reference current value A first comparator, Configured to obtain a voltage value of the first DC signal or a voltage value of the second DC signal, and output a voltage value of the first DC signal or a difference value between a voltage value of the second DC signal and a reference voltage value A second comparator, The control circuit, A current value of the first DC signal output from the first comparator or a difference value between a current value of the second DC signal and the reference current value, and a voltage value of the first DC signal output from the second comparator, or A difference value among the difference values between the voltage value of the second CD signal and the reference voltage value is selected according to the charging mode of the battery, It is configured to provide a control signal generated based on the selected difference value to the communication circuit, The encoder, Based on the control signal obtained from the control circuit, to generate the packet, Configured to provide the packet to the modulator, The modulator, It is configured to modulate the packet based on a specified modulation scheme, The control circuit, And an electronic device configured to transmit the modulated packet to the external electronic device through the coil using the communication circuit. The method according to claim 9, The packet, An electronic device including information on a current value of the first DC signal or a difference value between the current value of the second DC signal and the reference current value. The method according to claim 8, wherein the communication circuit, It includes an encoder and a modulator, The control circuit, Configured to obtain a current value of the first DC signal or a current value of the second DC signal, and output a current value of the first DC signal or a difference value between a current value of the second DC signal and a reference current value A first comparator, Configured to obtain a voltage value of the first DC signal or a voltage value of the second DC signal, and output a voltage value of the first DC signal or a difference value between a voltage value of the second DC signal and a reference voltage value A second comparator, The encoder, Information related to a current value of the first DC signal output from the first comparator or a difference value between a current value of the second DC signal and the reference current value, of the first DC signal output from the second comparator Generating the packet including information related to a voltage value or a difference value between the voltage value of the second DC signal and the reference voltage value, and information about the charging mode of the battery, Configured to provide the generated packet to the modulator, The modulator, It is configured to modulate the packet based on a specified modulation scheme, The control circuit, And an electronic device configured to transmit the modulated packet to the external electronic device through the coil using the communication circuit. The method according to claim 11, The power receiving circuit, Receiving another AC signal adjusted based on the packet from the external electronic device through the coil, The other AC signal, The current value of the first DC signal or the difference value between the current value of the second DC signal and the reference current value and the voltage value of the first DC signal or the voltage value of the second DC signal and the reference voltage value It is generated in the external electronic device based on the selected value of the difference value of, The selected value, An electronic device selected by a multiplexer included in the external electronic device, based on information on the charging mode of the battery included in the packet. The method according to claim 12, wherein the other AC signal, An electronic device generated by changing an operating frequency, operating voltage, operating duty cycle, or a combination thereof of an inverter included in the external electronic device. In an electronic device, A rechargeable battery; A coil configured to wirelessly receive an alternating current (AC) signal for obtaining power from an external electronic device; A power receive (RX) circuitry configured to obtain a first direct current (DC) signal generated based on the AC signal received through the coil; A battery charging circuitry electrically connected to the battery for charging the battery and configured to obtain a second DC signal generated based at least on the first DC signal; A communication circuit operably coupled to the coil and configured to transmit a packet to the external electronic device through the coil; And And a control circuitry operably coupled with the communication circuit, the power receiving circuit, and the battery charging circuit, wherein the control circuit comprises: While the charging mode of the battery is in the CC (constant current) mode, information about a first difference value between the current value of the first DC signal and a reference current value or the current value of the second DC signal and the reference current A packet including information on a second difference value between values is transmitted to the external electronic device through the coil using the communication circuit, In response to detecting that the charging mode of the battery is switched from the CC mode to a constant voltage (CV) mode, information about a third difference value between a voltage value of the first DC signal and a reference voltage value or the second An electronic device configured to transmit another packet including information on a fourth difference value between the voltage value of the DC signal and the reference voltage value through the coil to the external electronic device using the communication circuit. The method according to claim 14, The control circuit, At least one register, A first comparator configured to output the first difference value between the current value of the first DC signal and the reference current value, A second comparator configured to output the third difference value between the voltage value of the first DC signal and the reference voltage value, And a multiplexer configured to select a difference value of one of the first difference value output from the first comparator and the third difference value output from the second comparator based on information stored in the register, The control circuit, Selecting the third difference value using the multiplexer by changing information stored in the register in response to detecting that the charging mode of the battery is switched from the CC mode to the CV mode, An electronic device configured to transmit the other packet including information on the third difference value to the external electronic device through the coil using the communication circuit.

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