CN108054815B - Wireless charging method and device - Google Patents
Wireless charging method and device Download PDFInfo
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- CN108054815B CN108054815B CN201711489051.5A CN201711489051A CN108054815B CN 108054815 B CN108054815 B CN 108054815B CN 201711489051 A CN201711489051 A CN 201711489051A CN 108054815 B CN108054815 B CN 108054815B
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- 238000010586 diagram Methods 0.000 description 9
- 238000004590 computer program Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
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Classifications
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- H02J7/025—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
- H02J7/04—Regulation of charging current or voltage
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The application provides a wireless charging method and equipment, wherein the method comprises the following steps: acquiring a first charging voltage value and a first charging current value of user equipment to be charged; determining a first power supply voltage value of the wireless charging device according to the first charging voltage value and the first charging current value of the user device; and determining a first output port of a transmitting coil corresponding to the first power supply voltage according to the first power supply voltage value, wherein the transmitting coil comprises a plurality of different output ports, and electrically connecting the first output port with the power supply voltage output end so as to adjust the power supply voltage of the wireless charging equipment to the first power supply voltage value.
Description
Technical Field
The present application relates to the field of charging technologies, and in particular, to a wireless charging method and apparatus.
Background
With the continuous improvement of the configuration of the user equipment and the continuous increase of the demand and consumption of the electric quantity, the charging mode of the battery of the user equipment is more and more, and in order to improve the convenience of charging, the wireless charging mode has gradually become a new charging trend.
In the wireless charging method in the prior art, a fixed power supply voltage mode is mainly adopted to charge the user equipment. For different user equipment, the required charging voltage and charging current are different, so that according to the charging mode, the overall electric energy conversion efficiency of the whole wireless charging circuit is low, the charging efficiency of the user equipment is influenced, and even the user equipment is possibly damaged; moreover, since the power loss is manifested as heat, the user experience is also reduced, and the safety of the user equipment is affected.
Therefore, a new wireless charging method and apparatus are needed to solve the problems of low charging efficiency and serious heat generation of the current wireless charging.
Disclosure of Invention
The embodiment of the application provides a wireless charging method and wireless charging equipment, which are used for solving the problems of low charging efficiency and serious heating of the conventional wireless charging method and equipment.
The embodiment of the application provides a wireless charging method, which comprises the following steps:
Acquiring a first charging voltage value and a first charging current value of user equipment to be charged;
determining a first power supply voltage value of the wireless charging device according to the first charging voltage value and the first charging current value of the user device;
And determining a first output port of a transmitting coil corresponding to the first power supply voltage according to the first power supply voltage value, wherein the transmitting coil comprises a plurality of different output ports, and electrically connecting the first output port with the power supply voltage output end so as to adjust the power supply voltage of the wireless charging equipment to the first power supply voltage value.
In a specific embodiment, the method further comprises:
Acquiring a second charging voltage value, a second charging current value and a battery voltage value of user equipment;
determining the charging efficiency of the user equipment according to the battery voltage value, the second charging voltage value and the second charging current value;
If the charging efficiency is determined to be lower than a preset threshold value, switching a first output port in the transmitting coil into a second output port to be electrically connected with the power supply voltage output end, and adjusting a second power supply voltage value corresponding to the second charging voltage value to a third power supply voltage value corresponding to a third charging voltage value; the third charging voltage value is smaller than the second charging voltage value; the second output port is determined according to the third supply voltage value;
In a specific embodiment, adjusting the second supply voltage value corresponding to the second charging voltage value to a third supply voltage value corresponding to a third charging voltage value includes:
reducing the second power supply voltage value by a preset voltage value to obtain a fourth power supply voltage value;
Acquiring a fourth charging voltage value of the user equipment; the fourth charging voltage value is a charging voltage value of the user equipment at the fourth power supply voltage value;
If the fourth charging voltage value is determined to be greater than the third charging voltage value, reducing the fourth power supply voltage value by the preset voltage value, and returning to the step of acquiring the fourth charging voltage value of the user equipment;
And if the fourth charging voltage value is determined to be equal to the third charging voltage value, determining the fourth power supply voltage value as an adjusted third power supply voltage value.
In a specific embodiment, reducing the second supply voltage value by a preset voltage value to obtain a fourth supply voltage value includes:
switching the second output port of the transmitting coil into a third output port to be electrically connected with the power supply voltage output end, so as to obtain the fourth power supply voltage value; the third output port is determined from the fourth supply voltage value.
In a specific embodiment, the third charging voltage value is a minimum charging voltage value for keeping the charging current value of the user equipment within a preset fluctuation range.
The embodiment of the application provides wireless charging equipment, which comprises the following components: a transmitting coil, a control circuit; the control circuit is electrically connected with the transmitting coil through a plurality of output ports, and the output ports are mutually switched through a switch; the transmitting coil provides different power supply voltages through different output ports;
The control circuit is used for acquiring a first charging voltage value and a first charging current value of user equipment to be charged; determining a first power supply voltage value of the wireless charging device according to the first charging voltage value and the first charging current value of the user device; and determining a first output port of a transmitting coil corresponding to the first power supply voltage according to the first power supply voltage value, wherein the transmitting coil comprises a plurality of different output ports, and electrically connecting the first output port with the power supply voltage output end so as to adjust the power supply voltage of the wireless charging equipment to the first power supply voltage value.
In a specific embodiment, the control circuit is configured to obtain a second charging voltage value, a second charging current value, and a battery voltage value of the user equipment; determining the ratio of the charging power to the power supply power of the user equipment according to the battery voltage value, the second charging voltage value and the second charging current value; if the ratio of the charging power to the power supply power is determined to be lower than a preset threshold value, switching a first output port in the transmitting coil into a second output port to be electrically connected with the power supply voltage output end, and adjusting a second power supply voltage value corresponding to the second charging voltage value to a third power supply voltage value corresponding to a third charging voltage value; the third charging voltage value is smaller than the second charging voltage value; the second output port is determined from the third supply voltage value.
In a specific embodiment, the control circuit is configured to switch, when the transmitting coil provides the second supply voltage value, the second output port in the transmitting coil to a third output port electrically connected to the supply voltage output end, so as to obtain the fourth supply voltage value; the third output port is determined according to the fourth supply voltage value;
The control circuit obtains a fourth charging voltage value of the user equipment; the fourth charging voltage value is a charging voltage value of the user equipment at the fourth power supply voltage value;
If the control circuit determines that the fourth charging voltage value is greater than the third charging voltage value, switching a third output port in the transmitting coil into a fourth output port and electrically connecting the fourth output port with the power supply voltage output end, wherein the power supply voltage value corresponding to the fourth output port is a voltage value obtained by reducing the power supply voltage value corresponding to the third output port by a preset voltage value, and returning to the step of obtaining the fourth charging voltage value of the user equipment;
And if the control circuit determines that the fourth charging voltage value is equal to the third charging voltage value, determining the fourth power supply voltage value as an adjusted third power supply voltage value.
In a specific embodiment, the apparatus further comprises: and the display is used for displaying the power supply voltage of the equipment and/or the charging voltage, the charging current and the battery voltage of the user equipment.
In a specific embodiment, the apparatus further comprises: the memory is used for storing the charging voltage value, the battery voltage value and the charging current value of the user equipment, which are acquired by the control circuit; and/or for storing a supply voltage value of the device.
In a specific embodiment, the transmitting coil is a solid coil or a planar coil.
In a specific embodiment, the control circuit controls the connection and disconnection of different output ports in the switch by means of relays.
The embodiment of the application provides a wireless charging method and device, which are characterized in that a first charging voltage value and a first charging current value of user equipment to be charged are obtained; determining a first power supply voltage value of the wireless charging device according to the first charging voltage value and the first charging current value of the user device; and determining a first output port of a transmitting coil corresponding to the first power supply voltage according to the first power supply voltage value, wherein the transmitting coil comprises a plurality of different output ports, and electrically connecting the first output port with the power supply voltage output end so as to adjust the power supply voltage of the wireless charging equipment to the first power supply voltage value. Different charging voltages and charging currents are set for different equipment to be charged, so that power loss in a charging circuit is reduced, heating is reduced, and equipment safety and charging efficiency are improved.
Drawings
Fig. 1 is a schematic structural diagram of a wireless charging device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a transmitting coil according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a transmitting coil according to an embodiment of the present application;
fig. 4 is a schematic flow chart of a charging method according to an embodiment of the application.
Detailed Description
With the development of wireless charging technology, devices supporting wireless charging currently include mobile phones, plane computers, sweeping robots, automobiles and the like. Such devices supporting wireless charging may be charged wirelessly through a wireless charging base, which is typically connected to an ac power source, and then converts electrical energy into electromagnetic waves using a coil, and then transfers magnetic energy to the coil inside the wireless charging device without a conductor.
As shown in fig. 1, an embodiment of the present application provides a wireless charging device, including: a transmitting coil 101 and a control circuit 102; the control circuit 102 is electrically connected with the transmitting coil 101 through a plurality of output ports 110-116, and the plurality of output ports 110-116 are mutually switched through switches 120-126; the transmitting coil 101 provides different supply voltages through different output ports 110-116;
in a specific embodiment, the transmitting coil 101 may be a three-dimensional coil or a planar coil, or may be another coil, which may be set according to specific needs, and is not limited herein. For example a circular solid coil as shown in fig. 2, or a planar coil as shown in fig. 3.
Because the charging voltage and the charging current required by different user equipment to be charged are different, the power supply voltage of the transmitting coil is determined through the acquired first charging voltage value and the first charging current value of the user equipment to be charged, so that the wireless charging equipment can adapt to various different types of user equipment to be charged, the charging efficiency of the user equipment is effectively improved, heating is reduced, and the user experience is improved.
In one particular embodiment, the connection and disconnection of the different output ports 110-116 in the switches 120-126 may be controlled by the control circuit 102 via relays to achieve automatic regulation of the supply voltage.
In a specific embodiment, the apparatus may further include: a memory, configured to store a charging voltage value, a battery voltage value, and a charging current value of the user equipment, which are acquired by the control circuit 102; and/or for storing a supply voltage value of the device.
In the implementation process, when the same user equipment is accessed, the power supply voltage value required by the user equipment can be directly obtained through the charging voltage value, the battery voltage value and the charging current value of the user equipment stored in the memory, so that the adjustment time of the wireless charging equipment is saved, and the charging efficiency is improved.
In a specific embodiment, the apparatus may further include: and the display is used for displaying the power supply voltage of the equipment and/or the charging voltage, the charging current and the battery voltage of the user equipment.
In a specific embodiment, the apparatus may further include: the adaptive interface of the wireless charging device can be added with interfaces of different device models according to actual needs, and is used for charging the device to be charged or charging a plurality of devices to be charged in a wired mode when the wireless charging device cannot work.
Referring to fig. 1, as shown in fig. 4, an embodiment of the present application provides a flow chart of a charging method, which includes the following steps:
Step 401: acquiring a first charging voltage value and a first charging current value of user equipment to be charged;
Step 402: determining a first power supply voltage value of the wireless charging device according to the first charging voltage value and the first charging current value of the user device;
step 403: and determining a first output port of a transmitting coil corresponding to the first power supply voltage according to the first power supply voltage value, wherein the transmitting coil comprises a plurality of different output ports, and electrically connecting the first output port with the power supply voltage output end so as to adjust the power supply voltage of the wireless charging equipment to the first power supply voltage value.
In step 401, in a specific embodiment, the first charging voltage value may be a charging voltage value of a battery cell of the user equipment to be charged.
For example, the first charging voltage value and the first charging current value may identify a charging standard of the user equipment to be charged when the wireless charging device identifies the user equipment to be charged according to the time when the user equipment to be charged is connected to the wireless charging device, and take the charging voltage value and the charging current value in the charging standard as the first charging voltage value and the first charging current value.
For example, when the charging device is a mobile phone of a certain brand and the wireless charging device is connected, the charging standard of the mobile phone is determined to be Qi standard, the charging voltage of the mobile phone is 5V, the charging current is 500mA, the first charging voltage is determined to be 5V, and the first charging current is determined to be 500mA.
In step 402, in a specific embodiment, a first charging voltage value required for charging the device to be charged may be determined first according to a battery voltage value and a circuit parameter at the beginning of charging.
In a specific implementation process, the first charging voltage value and the first charging current value may be determined according to charging state information of a battery in the device to be charged, so as to determine the first charging voltage value according to circuit parameter information of the wireless charging device and the device to be charged.
In one specific embodiment, the method may comprise the steps of:
Step one, determining the charging power of the user equipment according to the first charging voltage value and the first charging current value;
And step two, determining the power supply power of the wireless charging equipment according to the charging power of the user equipment so that the ratio of the charging power to the power supply power is equal to a first preset threshold value.
Specifically, the first charging voltage value may be determined according to a relationship between a first charging current determined in actual application and a first supply current provided by the wireless charging device.
In step 402, in one particular embodiment, the following steps may be included:
step one, determining a first power supply voltage value and a first power supply current value according to a preset power supply voltage value and a preset power supply current value;
And step two, adjusting the first power supply voltage value and the first power supply current value according to the charging voltage value and the charging current value returned by the equipment to be charged, so that the charging voltage value and the charging current value of the equipment to be charged are the first charging voltage value and the first charging current value.
In step 403, in a specific embodiment, the first output port of the transmitting coil 101 may be determined according to the following steps:
Step one, the wireless charging equipment determines the number of turns of a charging coil in the equipment to be charged according to the identified equipment to be charged;
And step two, the wireless charging equipment determines a first output port of the wireless charging equipment according to the number of turns of the charging coil in the equipment to be charged and the first charging voltage and the first power supply voltage.
In a specific implementation process, the implementation may be performed by the control circuit 102, where the control circuit 102 is configured to obtain a first charging voltage value and a first charging current value of a user equipment to be charged; determining a first power supply voltage value of the wireless charging device according to the first charging voltage value and the first charging current value of the user device;
For example, the first output port 110 of the transmitting coil 101 corresponding to the first power supply voltage is determined according to the first power supply voltage value, where the transmitting coil 101 includes several different output ports 110-116, and the first output port 110 is electrically connected to the power supply voltage output terminal, so that the power supply voltage of the wireless charging device is adjusted to the first power supply voltage value.
In a specific charging process, three phases may be involved: a pre-charging stage, a constant-current stage and a constant-voltage stage; and aiming at different charging stages, the charging voltage value of the equipment to be charged can be dynamically adjusted in real time according to the battery voltage value and the charging current value of the equipment to be charged.
In the pre-charging stage, the wireless charging device can adjust the first power supply voltage value by adjusting the first power supply voltage value, so that the magnitude of the charging current of the device to be charged gradually approaches to a first charging current value (which can be flexibly set according to actual use requirements).
In a specific embodiment, the control circuit 102, in the pre-charging stage, may include the following steps after determining that the charging current value of the device to be charged is stable (the variation of the charging current value within the set time period is not greater than the set threshold value) each time:
If the charging current value of the equipment to be charged is determined to be far smaller than the preset charging current value, the first charging voltage value is increased by a set first step length, so that the charging current value of the equipment to be charged gradually and rapidly approaches the preset charging current value;
in a specific implementation process, the first output port 110 in the transmitting coil 101 may be gradually switched to the output port 113 to be electrically connected with the power supply voltage output end, so that the first charging voltage value corresponding to the first power supply voltage value is gradually increased.
If the charging current value is determined to be close to the preset charging current value, the first charging voltage value can be increased by a set second step length, so that the charging current value of the charging equipment gradually and stably reaches the preset charging current value. The second step size is smaller than the first step size.
In a specific implementation process, the first output port 110 in the transmitting coil 101 may be gradually switched to the output port 112 and electrically connected to the power supply voltage output end, so that the first charging voltage value corresponding to the first power supply voltage value is gradually increased.
In the constant current stage, if the wireless charging device determines that the charging current of the device to be charged is within the preset charging current value range (which can be flexibly set according to actual use requirements), a second charging voltage value which enables the charging current to be as stable as possible can be determined.
In order to improve the charging efficiency, the second charging voltage value may be dynamically adjusted according to the battery voltage value of the device to be charged.
In one specific embodiment, the method may comprise the steps of:
Step one, acquiring a second charging voltage value, a second charging current value and a battery voltage value of user equipment;
step two, determining the ratio of the charging power to the power supply power of the user equipment according to the battery voltage value, the second charging voltage value and the second charging current value;
Step three, if the ratio of the charging power to the power supply power is lower than a preset threshold value, adjusting a second power supply voltage value corresponding to the second charging voltage value to a third power supply voltage value corresponding to a third charging voltage value; the third charging voltage value is smaller than the second charging voltage value.
If the ratio of the charging power to the power supply is determined to be lower than a preset threshold, determining that the charging efficiency of the wireless charging equipment is too low, and at the moment, timely adjusting the power supply voltage to enable the charging efficiency to reach the preset threshold.
In a specific embodiment, the third charging voltage value may be a minimum charging voltage value for keeping the charging current value of the user equipment within a preset fluctuation range, so as to improve the charging efficiency of the device to be charged.
In the implementation process, a preset charging current value range of the equipment to be charged in the constant current stage can be determined according to a preset threshold value. In order to enable the charging process to be more accurate in control, the charging time of large current can be prolonged as much as possible, and the charging efficiency is improved.
In the constant current stage, after the charging process enters the constant current stage, if the charging current value is determined to be within the preset charging current value range, the second power supply voltage value can be kept unchanged. The battery voltage value of the equipment to be charged can rise along with the progress of charging, and if the second charging voltage value is unchanged, the charging current value of the equipment to be charged at the moment can be gradually reduced; when the charging current value of the equipment to be charged is determined to be reduced below the lower limit of the preset charging current value range, the second power supply voltage value can be increased by a set smaller step length so as to control the charging current value of the equipment to be charged within the preset charging current value range.
In a specific implementation process, the first output port 110 in the transmitting coil may be switched to be electrically connected to the second output port 114 and the power supply voltage output end, so that the second power supply voltage value corresponding to the second charging voltage value is adjusted to be a third power supply voltage value corresponding to a third charging voltage value; the second output port 114 is determined from the third supply voltage value.
In a specific implementation of step three, in one specific embodiment, the method includes the following steps:
step one, reducing the second power supply voltage value by a preset voltage value to obtain a fourth power supply voltage value;
In a specific embodiment, the second output port 111 of the transmitting coil 101 may be switched to electrically connect the third output port 115 with the supply voltage output terminal, so as to obtain the fourth supply voltage value; the third output port is determined from the fourth supply voltage value.
Step two, obtaining a fourth charging voltage value of the user equipment; the fourth charging voltage value is a charging voltage value of the user equipment at the fourth power supply voltage value;
step three, if the fourth charging voltage value is determined to be greater than the third charging voltage value, reducing the fourth power supply voltage value by the preset voltage value, and returning to the step of obtaining the fourth charging voltage value of the user equipment;
and step four, if the fourth charging voltage value is determined to be equal to the third charging voltage value, determining the fourth power supply voltage value as an adjusted third power supply voltage value.
When the charging process enters the constant voltage stage, a third step length can be set to reduce the charging voltage value of the equipment to be charged so that the voltage value of the battery is basically kept unchanged, and the charging current value of the equipment to be charged is gradually reduced to increase the charging efficiency and reduce the heating of charging.
The embodiment of the application provides wireless charging equipment, which is characterized in that a first charging voltage value and a first charging current value of user equipment to be charged are obtained; determining a first power supply voltage value of the wireless charging device according to the first charging voltage value and the first charging current value of the user device; and determining a first output port of a transmitting coil corresponding to the first power supply voltage according to the first power supply voltage value, wherein the transmitting coil comprises a plurality of different output ports, and electrically connecting the first output port with the power supply voltage output end so as to adjust the power supply voltage of the wireless charging equipment to the first power supply voltage value. Different charging voltages and charging currents are set for different devices to be charged, and the power supply voltage of the wireless charging device is dynamically adjusted according to different charging stages, so that power loss in a charging circuit is reduced, heating is reduced, and the safety and charging efficiency of the device are improved.
It will be apparent to those skilled in the art that embodiments of the present invention may be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (devices) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. A wireless charging method, comprising:
Acquiring a first charging voltage value and a first charging current value of user equipment to be charged, and taking the charging voltage value and the charging current value in a charging standard of the user equipment to be charged as the first charging voltage value and the first charging current value;
Determining a first power supply voltage value of the wireless charging device according to the first charging voltage value and the first charging current value of the user device; the wireless charging device includes: a transmitting coil, a control circuit; the control circuit is electrically connected with the transmitting coil through a plurality of output ports, and the output ports are mutually switched through a switch; the transmitting coil provides different power supply voltages through different output ports;
Determining a first output port of a transmitting coil corresponding to the first power supply voltage according to the first power supply voltage value, wherein the transmitting coil comprises a plurality of different output ports, and electrically connecting the first output port with a power supply voltage output end so as to adjust the power supply voltage of the wireless charging equipment to the first power supply voltage value;
Acquiring a second charging voltage value, a second charging current value and a battery voltage value of user equipment, and determining the second charging voltage value which enables the charging current to be as stable as possible if the charging current of the equipment to be charged is within a preset charging current value range in a constant current stage;
Determining a ratio of the charging power to the power supply power of the user equipment according to the battery voltage value, the second charging voltage value and the second charging current value;
If the ratio of the charging power to the power supply power is determined to be lower than a preset threshold value, switching a first output port in the transmitting coil into a second output port to be electrically connected with the power supply voltage output end, and reducing a second power supply voltage value corresponding to the second charging voltage value by a preset voltage value to obtain a fourth power supply voltage value; acquiring a fourth charging voltage value of the user equipment; the fourth charging voltage value is a charging voltage value of the user equipment at the fourth power supply voltage value; if the fourth charging voltage value is determined to be larger than the third charging voltage value, reducing the fourth power supply voltage value by the preset voltage value, and returning to the step of acquiring the fourth charging voltage value of the user equipment; if the fourth charging voltage value is determined to be equal to the third charging voltage value, determining the fourth power supply voltage value as an adjusted third power supply voltage value; the third charging voltage value is a minimum charging voltage value for keeping the charging current value of the user equipment within a preset fluctuation range; the third charging voltage value is smaller than the second charging voltage value; the second output port is determined from the third supply voltage value.
2. The method of claim 1, wherein reducing the second supply voltage value by a preset voltage value to obtain a fourth supply voltage value comprises:
switching the second output port of the transmitting coil into a third output port to be electrically connected with the power supply voltage output end, so as to obtain the fourth power supply voltage value; the third output port is determined from the fourth supply voltage value.
3.A wireless charging device, comprising: a transmitting coil, a control circuit; the control circuit is electrically connected with the transmitting coil through a plurality of output ports, and the output ports are mutually switched through a switch; the transmitting coil provides different power supply voltages through different output ports;
the control circuit is used for acquiring a first charging voltage value and a first charging current value of user equipment to be charged; taking a charging voltage value and a charging current value in a charging standard of the user equipment to be charged as the first charging voltage value and the first charging current value; determining a first power supply voltage value of the wireless charging device according to the first charging voltage value and the first charging current value of the user device; determining a first output port of a transmitting coil corresponding to the first power supply voltage according to the first power supply voltage value, wherein the transmitting coil comprises a plurality of different output ports, and electrically connecting the first output port with a power supply voltage output end so as to adjust the power supply voltage of the wireless charging equipment to the first power supply voltage value;
Acquiring a second charging voltage value, a second charging current value and a battery voltage value of user equipment, and determining the second charging voltage value which enables the charging current to be as stable as possible if the charging current of the equipment to be charged is within a preset charging current value range in a constant current stage;
Determining a ratio of the charging power to the power supply power of the user equipment according to the battery voltage value, the second charging voltage value and the second charging current value;
If the ratio of the charging power to the power supply power is determined to be lower than a preset threshold value, switching a first output port in the transmitting coil into a second output port to be electrically connected with the power supply voltage output end, and reducing a second power supply voltage value corresponding to the second charging voltage value by a preset voltage value to obtain a fourth power supply voltage value; acquiring a fourth charging voltage value of the user equipment; the fourth charging voltage value is a charging voltage value of the user equipment at the fourth power supply voltage value; if the fourth charging voltage value is determined to be larger than the third charging voltage value, reducing the fourth power supply voltage value by the preset voltage value, and returning to the step of acquiring the fourth charging voltage value of the user equipment; if the fourth charging voltage value is determined to be equal to the third charging voltage value, determining the fourth power supply voltage value as an adjusted third power supply voltage value; the third charging voltage value is a minimum charging voltage value for keeping the charging current value of the user equipment within a preset fluctuation range; the third charging voltage value is smaller than the second charging voltage value; the second output port is determined from the third supply voltage value.
4. The apparatus of claim 3, wherein the control circuit is configured to switch the second output port in the transmit coil to a third output port electrically connected to the supply voltage output to obtain the fourth supply voltage value when the transmit coil is provided with the second supply voltage value; the third output port is determined from a fourth supply voltage value.
5. The apparatus according to claim 3 or 4, wherein the apparatus further comprises: and the display is used for displaying the power supply voltage of the equipment and/or the charging voltage, the charging current and the battery voltage of the user equipment.
6. The apparatus according to claim 3 or 4, wherein the apparatus further comprises: the memory is used for storing the charging voltage value, the battery voltage value and the charging current value of the user equipment, which are acquired by the control circuit; and/or for storing a supply voltage value of the device.
7. The apparatus of claim 3 or 4, wherein the transmit coil is a solid coil or a planar coil.
8. The apparatus of claim 3 or 4, wherein the control circuit controls connection and disconnection of different output ports in the switch by means of a relay.
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| CN109742824B (en) * | 2019-02-23 | 2025-05-06 | 华为技术有限公司 | Charging systems and electronics |
| CN109787338B (en) * | 2019-03-22 | 2023-09-19 | 合肥联宝信息技术有限公司 | Power control method and device of electronic equipment and electronic equipment |
| CN116418056A (en) * | 2021-12-29 | 2023-07-11 | 中兴通讯股份有限公司 | Charging control method, electronic device, and computer-readable storage medium |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036282A (en) * | 2012-12-06 | 2013-04-10 | 捷普科技（上海）有限公司 | Voltage self-adaptation wireless charging device and method |
| CN103236568A (en) * | 2013-05-03 | 2013-08-07 | 深圳市中兴移动通信有限公司 | Charging method and charging system |
| CN205489781U (en) * | 2015-12-31 | 2016-08-17 | 日月元科技(深圳)有限公司 | Voltage -regulating circuit and power system of not cutting off power supply |
| CN106410872A (en) * | 2015-07-27 | 2017-02-15 | 小米科技有限责任公司 | Charging method and device |
| CN106532834A (en) * | 2016-11-30 | 2017-03-22 | 努比亚技术有限公司 | Mobile terminal and mobile terminal charging method |
| CN106981900A (en) * | 2017-05-12 | 2017-07-25 | 宇龙计算机通信科技(深圳)有限公司 | Wireless charging method and device |
| CN107134862A (en) * | 2017-06-19 | 2017-09-05 | 维沃移动通信有限公司 | A kind of application processor, wireless charging circuit and wireless charging control method |
| CN107453489A (en) * | 2017-08-31 | 2017-12-08 | 努比亚技术有限公司 | Wireless charging electroplax and its wireless charging method, computer-readable recording medium |
| CN208158143U (en) * | 2017-12-29 | 2018-11-27 | 上海创功通讯技术有限公司 | A kind of wireless charging device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7233137B2 (en) * | 2003-09-30 | 2007-06-19 | Sharp Kabushiki Kaisha | Power supply system |
| US9537337B2 (en) * | 2014-07-23 | 2017-01-03 | Visteon Global Technologies, Inc. | Selecting a configuration of coils in response to a multi-coil wireless charging system initiating charging |
-
2017
- 2017-12-29 CN CN201711489051.5A patent/CN108054815B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036282A (en) * | 2012-12-06 | 2013-04-10 | 捷普科技（上海）有限公司 | Voltage self-adaptation wireless charging device and method |
| CN103236568A (en) * | 2013-05-03 | 2013-08-07 | 深圳市中兴移动通信有限公司 | Charging method and charging system |
| CN106410872A (en) * | 2015-07-27 | 2017-02-15 | 小米科技有限责任公司 | Charging method and device |
| CN205489781U (en) * | 2015-12-31 | 2016-08-17 | 日月元科技(深圳)有限公司 | Voltage -regulating circuit and power system of not cutting off power supply |
| CN106532834A (en) * | 2016-11-30 | 2017-03-22 | 努比亚技术有限公司 | Mobile terminal and mobile terminal charging method |
| CN106981900A (en) * | 2017-05-12 | 2017-07-25 | 宇龙计算机通信科技(深圳)有限公司 | Wireless charging method and device |
| CN107134862A (en) * | 2017-06-19 | 2017-09-05 | 维沃移动通信有限公司 | A kind of application processor, wireless charging circuit and wireless charging control method |
| CN107453489A (en) * | 2017-08-31 | 2017-12-08 | 努比亚技术有限公司 | Wireless charging electroplax and its wireless charging method, computer-readable recording medium |
| CN208158143U (en) * | 2017-12-29 | 2018-11-27 | 上海创功通讯技术有限公司 | A kind of wireless charging device |
Non-Patent Citations (1)
| Title |
|---|
| 一种无线充电管理系统的电路设计;杨培凯;石雄;;电子与封装;第16卷(第04期);第29-33页 * |
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|---|---|
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