CN120546416A - A circuit for reducing power consumption of electronic equipment in charging shutdown state - Google Patents
A circuit for reducing power consumption of electronic equipment in charging shutdown stateInfo
- Publication number
- CN120546416A CN120546416A CN202510472555.4A CN202510472555A CN120546416A CN 120546416 A CN120546416 A CN 120546416A CN 202510472555 A CN202510472555 A CN 202510472555A CN 120546416 A CN120546416 A CN 120546416A
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
本申请提供了一种用于在充电关机状态下降低电子设备功耗的电路，电路包括：电源适配器接口，用于获取来自适配器的输出电压；电压控制模块，与所述电源适配器接口连接，用于控制适配器的输出电压为流通状态；主电压节点，与电压控制模块连接，用于输出主电压；第一电压转换器，与主电压节点连接，用于将主电压节点的主电压转换为第一工作电压；第一控制开关，用于在闭合状态下将第二工作电压输出；其中，第一工作电压小于第二工作电压。能够有效降低电子设备在充电关机状态下的功耗，提升电子设备的质量。
The present application provides a circuit for reducing the power consumption of an electronic device in a charging shutdown state. The circuit includes: a power adapter interface for obtaining an output voltage from the adapter; a voltage control module connected to the power adapter interface and configured to control the output voltage of the adapter to be in a flowing state; a main voltage node connected to the voltage control module and configured to output the main voltage; a first voltage converter connected to the main voltage node and configured to convert the main voltage at the main voltage node into a first operating voltage; and a first control switch configured to output a second operating voltage when closed; wherein the first operating voltage is lower than the second operating voltage. This circuit can effectively reduce the power consumption of an electronic device in a charging shutdown state and improve the quality of the electronic device.
Description
Technical Field
The present application relates to the field of data processing technologies, and in particular, to a circuit for reducing power consumption of an electronic device in a charging power-off state.
Background
Electronic products such as notebook computers are always sold to a plurality of foreign areas, and the electronic products are required to pass through the energy authentication in each area, wherein the energy standard which is difficult to meet is changed from 500mW to 300mW for the maximum power consumption of the electronic equipment in a power-off state of a charging mode, and the design difficulty of the notebook computer is further increased by the change. In the related art, the conversion efficiency of the adapter can be saved by about 10% by adjusting the output voltage of the adapter to 5V/3A mode when the unnecessary power supply is turned off or the battery is full as much as possible, so that the energy consumption is reduced. There are still some special functions in the process that do not allow the power consumption caused by turning off or multiple voltage transitions. Therefore, how to reduce the energy consumption of the electronic device in the charging and shutdown state is a technical problem to be solved.
Disclosure of Invention
The application provides a circuit for reducing power consumption of electronic equipment in a charging and shutdown state, so as to at least solve the technical problems in the prior art.
The application provides a circuit for reducing power consumption of electronic equipment in a charging and shutdown state, which comprises:
a power adapter interface for obtaining an output voltage from the adapter;
the voltage control module is connected with the interface of the power adapter and used for controlling the output voltage of the adapter to be in a circulation state;
the main voltage node is connected with the voltage control module and is used for outputting main voltage;
The first voltage converter is connected with the main voltage node and is used for converting the main voltage of the main voltage node into a first working voltage;
the first control switch is used for outputting a second working voltage in a closed state, wherein the first working voltage is smaller than the second working voltage.
In an embodiment, when the voltage control module controls the output voltage of the adapter to be in a flowing state, the first control switch is connected to the main voltage node, and the second working voltage is the same as the main voltage.
In one embodiment, the circuit further comprises a second voltage converter, wherein the voltage control module is further used for controlling the output voltage of the adapter to be in an off state;
the second voltage converter is connected with the power adapter interface and is used for converting the output voltage of the adapter into the first working voltage when the voltage control module controls the output voltage of the adapter to be in a disconnected state.
In an embodiment, when the voltage control module controls the output voltage of the adapter to be in an off state, the first control switch is connected with the power adapter interface, and the second working voltage is the same as the output voltage of the adapter.
In one embodiment, the circuit further comprises:
The battery interface is used for storing electric quantity for the electronic equipment;
and the second control switch is connected between the battery interface and the main voltage node and is used for being disconnected when the main voltage of the main voltage node is lower than a preset threshold value so as to prevent the battery interface from discharging outwards.
In one embodiment, the conversion efficiency of the second voltage converter is higher than the conversion efficiency of the first voltage converter.
In one embodiment, the circuit further comprises a third control switch connected between the battery interface and the second control switch for controlling the discharge of the battery interface.
In one embodiment, the circuit further comprises a fourth control switch connected between the power adapter interface and the voltage control module for protecting the circuit.
In an implementation manner, the voltage control module comprises a fifth control switch, a sixth control switch, a seventh control switch and an eighth control switch, wherein the fifth control switch, the sixth control switch, the seventh control switch and the eighth control switch are connected in an H-shaped mode, when the fifth control switch and the sixth control switch are in a connected state, the voltage control module controls the output voltage of the adapter to be in a flowing state, and when the fifth control switch and the sixth control switch are in an disconnected state, the voltage control module controls the output voltage of the adapter to be in a disconnected state.
In one embodiment, the voltage of the battery interface is greater than the voltage of the power adapter interface.
The circuit for reducing the power consumption of the electronic equipment in the charging and shutdown state comprises a power adapter interface, a voltage control module, a main voltage node, a first voltage converter and a first control switch, wherein the power adapter interface is used for acquiring output voltage from an adapter, the voltage control module is connected with the power adapter interface and used for controlling the output voltage of the adapter to be in a circulation state, the main voltage node is connected with the voltage control module and used for outputting main voltage, the first voltage converter is connected with the main voltage node and used for converting the main voltage of the main voltage node into first working voltage, and the first control switch is used for outputting second working voltage in a closed state, wherein the first working voltage is smaller than the second working voltage. The power consumption of the electronic equipment in the charging and shutdown state can be effectively reduced, and the quality of the electronic equipment is improved.
It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the application or to delineate the scope of the application. Other features of the present application will become apparent from the description that follows.
Drawings
The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:
in the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.
FIG. 1 shows a schematic diagram I of a circuit for reducing power consumption of an electronic device in a charging off state according to an embodiment of the application;
FIG. 2 shows a second schematic diagram of a circuit for reducing power consumption of an electronic device in a charging off state according to an embodiment of the present application;
Fig. 3 shows a schematic diagram of an application flow of a circuit for reducing power consumption of an electronic device in a charging off state according to an embodiment of the present application;
fig. 4 shows a second application flow chart of a circuit for reducing power consumption of an electronic device in a charging shutdown state according to an embodiment of the application.
Detailed Description
In order to make the objects, features and advantages of the present application more comprehensible, the technical solutions according to the embodiments of the present application will be clearly described in the following with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
An embodiment of the present application provides a circuit for reducing power consumption of an electronic device in a charging power-off state, referring to fig. 1, the circuit includes:
A power adapter interface 101 for obtaining an output voltage from the adapter;
The voltage control module 102 is connected with the power adapter interface 101 and is used for controlling the output voltage of the adapter to be in a flowing state;
a main voltage node b+ connected to the voltage control module 102 for outputting a main voltage;
A first voltage converter 103 connected to the main voltage node b+ for converting the main voltage of the main voltage node b+ into a first operating voltage;
The first control switch S1 is used for outputting a second working voltage in a closed state, wherein the first working voltage is smaller than the second working voltage.
The application scenario of the embodiment of the present application is that the electronic device is in a power-off charging state and the electric quantity is 100%, and the voltage of the power adapter interface 101 is 5V. The electronic device is connected to an external charging power source through a power adapter interface 101 for obtaining an output voltage transmitted from the power source to the adapter. The voltage control module 102 is connected to the power adapter interface 101, and is used for controlling the output voltage of the adapter to be in a flowing state. The voltage control module 102 is composed of four MOS transistors HIDRV a1, LODRV a1, HIDRV a 2 and LODRV a 2, respectively. Of these, HIDRV and LODRV constitute a step-down circuit, and HIDRV and LODRV2 constitute a step-up circuit in the related art. The step-down/step-up voltage is transmitted to a main voltage node b+ having one end connected to the voltage control module 102 and the other end connected to the first voltage converter 103 and the third voltage converter, respectively. The operation of the back-end of the electronic device, such as the CPU (Central Processing Unit ), GPU (Graphics Processing Unit, graphics processor), peripherals, etc., may require different operating voltage support. The first voltage converter 103 is a 3V voltage converter, and is configured to convert the voltage after voltage reduction/voltage boosting into a 3V voltage required for the back-end operation of the electronic device. The third voltage converter is a 5V voltage converter and is used for converting the voltage after the step-down/step-up into 5V voltage required by the back-end operation of the electronic equipment. Corresponding to the prior art, at least 2 times of voltage transformation are needed, and certain efficiency loss is generated in the process.
In the embodiment of the present application, the output voltage of the adapter is determined to be in a flowing state by controlling the connection between HIDRV and HIDRV in the voltage control module 102. The main voltage node b+ is configured to output the main voltage when the voltage control module 102 controls the output voltage of the adapter to be in a flowing state. The first voltage converter 103 is configured to convert the main voltage of the main voltage node b+ into a first working voltage of the back end of the electronic device, specifically 3V, when the voltage control module 102 controls the output voltage of the adapter to flow. The embodiment of the application adds the first control switch S1 on the basis of the existing circuit, and is used for providing the second working voltage, specifically 5V, for the rear end of the electronic equipment. From the power loss level, the power loss of the control switch is smaller than that of the voltage converter. Therefore, in the embodiment of the application, 2 voltage conversion steps can be saved at least in the process of providing the second working voltage of 5V for the rear end of the electronic equipment, so that the power consumption of the electronic equipment in a charging and shutdown state is reduced. The specific process is described in detail below, and is not repeated.
In an alternative solution, when the voltage control module 102 controls the output voltage of the adapter to be in a flowing state, the first control switch S1 is connected to the main voltage node b+, and the second operating voltage is the same as the main voltage.
In an embodiment of the present application, referring to fig. 2, when the voltage control module 102 controls the output voltage of the adapter to be in a flowing state, the 5V voltage of the power adapter interface 101 can flow through the main voltage node b+. The 5V voltage (main voltage) of the main voltage node b+ is converted into a 3V operation voltage required for the back end of the electronic device through the first voltage converter 103. The original third voltage converter is not active because the input and the output are the same (the third voltage converter is used for converting the input voltage into 5V voltage, when the main voltage transmitted from the main voltage node b+ is 5V, the input and the output of the third voltage converter are the same and are all 5V voltages, and at the moment, the third voltage converter is not active). Meanwhile, the first control switch S1 is connected to the main voltage node b+ and is configured to directly provide the 5V main voltage of the main voltage node b+ to the 5V function of the back end of the electronic device. The 5V voltage of the power adapter interface 101 is not required to be converted by at least 2 times of the voltage conversion in the related art before being used by the back end of the electronic device, but is directly supplied to the back end of the electronic device through the first control switch S1 with less power loss. The power consumption of the electronic equipment in the charging and shutdown state can be effectively reduced, and the quality of the electronic equipment is improved.
In an alternative, the circuit further comprises a second voltage converter 104, the voltage control module 102 is further configured to control the output voltage of the adapter to be in an off state;
The second voltage converter 104 is connected to the power adapter interface 101, and is configured to convert the output voltage of the adapter into the first operating voltage when the voltage control module 102 controls the output voltage of the adapter to be in an off state.
In an embodiment of the present application, referring to fig. 1, the circuit further includes a second voltage converter 104. The voltage control module 102 is further configured to control the output voltage of the adapter to be in an off state, and when the voltage control module 102 controls the output voltage of the adapter to be in the off state, the 5V voltage of the power adapter interface 101 cannot flow through the main voltage node b+, and naturally, the first voltage converter 103 and the third voltage converter cannot provide the working voltage of 3V or 5V for the back end of the electronic device. At this time, the second voltage converter 104 is connected to the power adapter interface 101, and is configured to convert the output voltage of the adapter into the first operating voltage, and provide the first operating voltage to the back end of the electronic device, i.e., the 3V operating voltage.
In an alternative, when the voltage control module 102 controls the output voltage of the adapter to be in the off state, the first control switch S1 is connected to the power adapter interface 101, and the second operating voltage is the same as the output voltage of the adapter.
In the embodiment of the present application, referring to fig. 1, when the voltage control module 102 controls the output voltage of the adapter to be in an off state, the 5V voltage of the power adapter interface 101 cannot flow through the main voltage node b+, and at this time, the first control switch S1 is not connected to the main voltage node b+ as shown in fig. 2, but is connected to the power adapter interface 101, so that the 5V voltage of the power adapter interface 101 can be directly provided to the back end of the electronic device for use. According to the application, the connection position of the first control switch S1 is flexibly set, so that the power consumption of the electronic equipment can be effectively reduced and the quality of the electronic equipment can be improved while the working voltage is provided for the rear end of the electronic equipment through the first control switch S1 when the voltage control module 102 controls the output voltage of the adapter to be in the off state or the flowing state.
In an alternative, the circuit further comprises:
A battery interface 105 for storing power for the electronic device;
and a second control switch S2, connected between the battery interface 105 and the main voltage node b+, for being turned off to prevent the battery interface 105 from discharging to the outside when the main voltage of the main voltage node b+ is lower than a preset threshold.
In the embodiment of the present application, referring to fig. 1 and 2, the circuit further includes a battery interface 105 for storing electric quantity for the electronic device, and in the case that the electronic device is in a shutdown charging state and the electric quantity is 100%, the voltage of the battery interface 105 is 13V. In addition, the circuit further comprises a second control switch S2 connected between the battery interface and the main voltage node, wherein the second control switch S2 is configured to be turned off to prevent the battery interface 105 from discharging outwards when the main voltage of the main voltage node b+ is lower than a preset threshold value, considering that the main voltage of the main voltage node b+ is switched to only 5V/0V in case of full power.
In an alternative, the conversion efficiency of the second voltage converter 104 is higher than the conversion efficiency of the first voltage converter 103.
In the present application, referring to fig. 1, when the conversion efficiency of the second voltage converter 104 is higher than that of the first voltage converter 103, the voltage control module 102 controls the output voltage of the adapter to be in an off state, and the 5V voltage of the power adapter interface 101 is converted into the first working voltage at the back end of the electronic device, that is, the 3V working voltage, through the second voltage converter 104. The power consumption of the electronic device can be reduced to some extent.
In an alternative, the circuit further comprises a third control switch S3 connected between the battery interface 105 and the second control switch S2 for controlling the battery interface discharge.
In the embodiment of the present application, referring to fig. 1 and 2, a third control switch S3 is connected between the battery interface 105 and the second control switch S2, and is configured to form a B2BMOS model with the second control switch S2, so as to control the discharge of the battery interface.
In an alternative, the circuit further comprises a fourth control switch S4, the fourth control switch S4 being connected between the power adapter interface 101 and the voltage control module 102 for protecting the circuit.
In the present application, referring to fig. 1 and 2, the fourth control switch S4 is connected between the power adapter interface 101 and the voltage control module 102, and protects the 20V circuit path, and prevents the power adapter interface 101 and the system side from being mutually affected by leakage, thereby protecting the circuit.
In an alternative solution, the voltage control module 102 includes a fifth control switch HIDRV1, a sixth control switch HIDRV2, a seventh control switch LODRV and an eighth control switch LODRV2, where the fifth control switch HIDRV, the sixth control switch HIDRV2, the seventh control switch LODRV1 and the eighth control switch LODRV are connected in an H-type, where the voltage control module 102 controls the output voltage of the adapter to be in a circulation state when the fifth control switch HIDRV1 and the sixth control switch HIDRV are in a connection state, and the voltage control module 102 controls the output voltage of the adapter to be in an disconnection state when the fifth control switch HIDRV1 and the sixth control switch HIDRV are in a disconnection state.
In the embodiment of the present application, referring to fig. 1 and 2, the fifth control switch HIDRV, the sixth control switch HIDRV2, the seventh control switch LODRV1 and the eighth control switch LODRV in the voltage control module 102 are connected in an H-shape. In the embodiment of the present application, the voltage control module 102 determines that the output voltage of the adapter is in a flowing state or an off state only by controlling the connection or disconnection of the fifth control switch HIDRV and the sixth control switch HIDRV. Specifically, when the fifth control switch HIDRV and the sixth control switch HIDRV are in the connected state, the fifth control switch HIDRV and the sixth control switch HIDRV are used only as switches, and the voltage control module 102 controls the output voltage of the adapter to be in the flowing state. When the fifth control switch HIDRV and the sixth control switch HIDRV are in the off state, voltage cannot flow through the fifth control switch HIDRV1 and the sixth control switch HIDRV2, and the voltage control module 102 controls the output voltage of the adapter to be in the off state. Wherein the connection or disconnection of the fifth control switch HIDRV and the sixth control switch HIDRV2 is controlled by the control chip in fig. 1 and 2.
Specifically, as shown in fig. 2 and 3, when the voltage control module 102 controls the output voltage of the adapter to be in the flowing state, it is determined whether the battery of the electronic device in the off-state-of-charge is full, and if the battery is not full, the charging is continued to the full. If the electronic device battery is already full at this point, the electronic device's EC (Embedded Controller ) notifies the PD (i.e., power adapter interface 101) that the output is changed to 5V mode. The EC then turns off the second control switch S2 to prevent the battery interface 105 from discharging to the outside. Then the EC informs the control chip to control HIDRV and HIDRV to be in a connected state, and sends out a 5V signal to open the first control switch S1 to provide a 5V operating voltage. At this time, factory personnel can test the power consumption of the electronic equipment, and after the test is finished, the first control switch S1 is turned off, the booster circuit is recovered, the second control switch S2 is turned on, the PD output is changed into a 20V mode, and the startup procedure is executed, so that the electronic equipment can be normally used.
Specifically, as shown in fig. 1 and 4, when the voltage control module 102 controls the output voltage of the adapter to be in the off state, it is determined whether the battery of the electronic device in the off state is full, and if the battery is not full, the charging is continued to be full. If the electronic device battery is full at this time, the EC of the electronic device notifies the PD output to change to 5V mode. After 180 seconds (the electronic device components run smoothly) the EC signals 3V to turn on the second voltage converter 104 for providing a 3V operating voltage for the back end. The EC then signals 5V to open the first control switch S1 and close the second control switch S2. Then, the EC informs the control chip to control HIDRV and HIDRV to be in an off state, at this time, the factory personnel can test the power consumption of the electronic device, and after the test is finished, the voltage-reducing circuit is recovered, the second control switch S2 is turned on, the first control switch S1 is turned off, the second voltage converter 104 is turned off, the PD output is changed into a 20V mode, and the power-on program is executed, so that the electronic device can be used normally.
In an alternative, the voltage of the battery interface 105 is greater than the voltage of the power adapter interface 101.
In the embodiment of the present application, as described above, in the case where the electronic device is in the off-state of charge and the electric quantity is 100%, the voltage of the power adapter interface 101 is 5V, and the voltage of the battery interface 105 is 13V. The voltage of the battery interface 105 is greater than the voltage of the power adapter interface 101.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the present application may be performed in parallel, sequentially, or in a different order, so long as the desired results of the technical solution disclosed in the present application can be achieved, and are not limited herein.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510472555.4A CN120546416A (en) | 2025-04-15 | 2025-04-15 | A circuit for reducing power consumption of electronic equipment in charging shutdown state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510472555.4A CN120546416A (en) | 2025-04-15 | 2025-04-15 | A circuit for reducing power consumption of electronic equipment in charging shutdown state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN120546416A true CN120546416A (en) | 2025-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510472555.4A Pending CN120546416A (en) | 2025-04-15 | 2025-04-15 | A circuit for reducing power consumption of electronic equipment in charging shutdown state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120546416A (en) |
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2025
- 2025-04-15 CN CN202510472555.4A patent/CN120546416A/en active Pending
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