A wireless charging control method, device and system

Abstract

The embodiments of the present application relate to the field of wireless charging technology, and in particular to a control method, device and system for wireless charging, which is used to reduce the Ploss disconnection phenomenon that occurs when a second electronic device wirelessly charges a first electronic device. The scheme includes: obtaining a first loss compensation and a first transmission power of a second electronic device during wireless charging of a first electronic device with a first charging power, and the second electronic device is used to provide wireless charging services for the first electronic device; calculating a first power loss based on the first transmission power and the first receiving power of the first electronic device; determining that the second electronic device is about to trigger wireless charging disconnection based on the first loss compensation and the first power loss, and reducing the charging power of the first electronic device. The scheme can reduce the charging power of the first electronic device in advance before the second electronic device triggers wireless charging disconnection, thereby avoiding the Ploss disconnection phenomenon.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of wireless charging technology, and in particular, to a method, device and system for controlling wireless charging. Background Art

[0002] Wireless charging refers to placing an electronic device that supports wireless charging (such as a mobile phone) on a wireless charging base to achieve power transmission through electromagnetic induction. The electromagnetic conversion process will inevitably result in energy loss and heat generation.

[0003] If the output power of the wireless charging base is increased, more heat will be generated. If there is a metal foreign object between the mobile phone and the wireless charging base, the temperature rise of the metal foreign object will be particularly high. In order to avoid the temperature of the wireless charging base being too high, the wireless charging base will monitor the energy loss to determine whether the energy output should be terminated. If the loss exceeds the threshold, the wireless charging base will stop charging the mobile phone and will not resume charging for a period of time. This problem is called Ploss disconnection. Since the wireless charging base actively stops charging the mobile phone, this will result in a poor user experience. Summary of the invention

[0004] The embodiments of the present application provide a wireless charging control method, device and system, which are used to reduce the Ploss disconnection phenomenon that occurs when a second electronic device wirelessly charges a first electronic device.

[0005] In a first aspect, an embodiment of the present application provides a wireless charging method, which is applied to a first electronic device, and the method includes: when a first charging power is used as the charging power of the first electronic device during the wireless charging process, a first loss compensation and a first transmission power of a second electronic device are obtained, and the second electronic device is used to provide a wireless charging service for the first electronic device. The first electronic device calculates a first power loss based on the first transmission power and the first receiving power of the first electronic device. Based on the first loss compensation and the first power loss, the first electronic device determines that the second electronic device is about to trigger a wireless charging disconnection, and reduces the charging power of the first electronic device.

[0006] Among them, the first charging power is the maximum charging power supported by the first electronic device during the wireless charging process, and the first charging power is less than or equal to the power corresponding to the level of the power circle of the second electronic device. It can also be understood that the first charging power is greater than the charging power indicated by the QI wireless charging standard protocol. The level of the power circle of the second electronic device is used to limit the maximum output power of the second electronic device. For example, if the power indicated by the level of the power circle of the second electronic device is 5W, the maximum output power of the second electronic device, that is, the transmission power, is 5W.

[0007] In the method provided in the embodiment of the present application, since the condition for the second electronic device to trigger wireless charging disconnection is that the power loss determined by the second electronic device is greater than or equal to the first loss compensation of the second electronic device, in the embodiment of the present application, during the charging process of the first electronic device at a high power (for example, the first charging power), the first electronic device obtains the power transmission information (for example, the first loss compensation and the first transmission power) of the second electronic device (i.e., the device providing wireless charging service for the first electronic device), and then the first electronic device can calculate the first power loss according to the first receiving power and the first transmitting power of the first electronic device, and then obtain the first power loss. On the basis of the first power loss, the first electronic device can determine that the second electronic device is about to trigger wireless charging disconnection according to the first loss compensation and the first power loss, and then can reduce the charging power of the first electronic device in advance before the second electronic device triggers wireless charging disconnection to reduce charging heat, and effectively control the overall heat generated by the reduced charging power to the electronic device, thereby avoiding the occurrence of the second electronic device actively disconnecting.

[0008] In a possible implementation of the present application, the method provided in an embodiment of the present application also includes: the first electronic device determines that the second electronic device will not trigger wireless charging disconnection based on the first loss compensation and the first power loss, and maintains the charging power of the first electronic device.

[0009] For example, when the first electronic device determines that the first power loss is less than the first loss compensation and the difference between the two is greater than a certain value (such as the first loss value), the first electronic device determines that the second electronic device will not trigger wireless charging disconnection and maintain the charging power of the first electronic device.

[0010] In a possible implementation of the present application, the first electronic device determines that the second electronic device will not trigger wireless charging disconnection and maintains the charging power of the first electronic device based on the first loss compensation and the first power loss, including: when the difference between the first loss compensation and the first power loss is greater than the first loss value, it is determined that the second electronic device will not trigger wireless charging disconnection, and the first electronic device maintains the charging power of the first electronic device. It can be understood that when the difference between the first loss compensation and the first power loss is greater than the first loss value, it indicates that if the first electronic device continues to be charged with the first charging power, the second electronic device will not be triggered to perform Ploss disconnection for the time being, so the first electronic device can continue to charge the first electronic device with the first charging power.

[0011] In a possible implementation of the present application, the first electronic device determines, based on the first loss compensation and the first power loss, that the second electronic device is about to trigger wireless charging disconnection, and reduces the charging power of the first electronic device, including:

[0012] When the difference between the first loss compensation and the first power loss is less than or equal to the first loss value, the first electronic device determines that the second electronic device is about to trigger wireless charging disconnection, and reduces the charging power of the first electronic device to a second charging power, wherein the second charging power is less than the first charging power.

[0013] It can be understood that when the difference between the first loss compensation and the first power loss is less than or equal to the first loss value, it indicates that the first power loss is already relatively close to the first loss compensation. If the first electronic device is continuously charged with the first charging power, it is possible that the second charging device stops charging the first electronic device, that is, the second electronic device triggers Ploss disconnection. Therefore, in order to avoid Ploss disconnection, the first electronic device can reduce the charging power of the first electronic device in advance.

[0014] In a possible implementation of the present application, when the difference between the first loss compensation and the first power loss is greater than the first loss value, the first electronic device can also continue to obtain the loss compensation and transmission power of the second electronic device during the wireless charging process.

[0015] In a possible implementation of the present application, the first electronic device reduces the charging power of the first electronic device, for example, by: the first electronic device adjusts the charging power of the first electronic device from the first charging power to the second charging power, wherein the first charging power is greater than the second charging power. The first electronic device maintains the charging power of the first electronic device, for example, the first electronic device maintains charging the first electronic device at the first charging power.

[0016] In a possible implementation manner of the present application, the method provided in an embodiment of the present application also includes: the first electronic device determines a first loss value according to the first receiving power.

[0017] In a possible implementation of the present application, the first electronic device sets a first loss value based on the first received power, including: when the first received power is greater than or equal to the first power threshold, the first electronic device sets the first loss value to the first power value; when the first received power is less than the first power threshold, the first electronic device sets the first loss value to the second power value, and the first power value is greater than the second power value.

[0018] In a possible implementation of the present application, after the first electronic device reduces the charging power of the first electronic device, the method provided in the embodiment of the present application further includes: the first electronic device obtains a second power loss. The first electronic device determines whether to re-control the charging of the first electronic device with the first charging power according to the second power loss and the second loss value, and the first charging power is greater than the charging power after the first electronic device is reduced. This solution can enable the first electronic device to decide whether to return to a high-power charging mode after the charging power is reduced.

[0019] In a possible implementation of the present application, the first electronic device determines whether to re-control charging the first electronic device with the first charging power according to the second power loss and the second loss value, including: when the first condition is met, the first electronic device re-controls charging the first electronic device with the first charging power. The first condition includes: the difference between the second loss compensation of the second electronic device and the second power loss is greater than the second loss value. When the first condition is not met, continue to charge the first electronic device with the second charging power, and perform the step of re-acquiring the second power loss.

[0020] In a possible implementation of the present application, the first condition also includes: the number of times of exiting high-power charging is less than or equal to a first threshold.

[0021] In a possible implementation of the present application, the method provided in the embodiment of the present application further includes: during a wireless charging process, when the charging power of the first electronic device is reduced from the first charging power to the second charging power, the number of times of exiting high-power charging is increased by a preset value. This facilitates the subsequent determination by the first electronic device whether to re-enter the high-power charging mode.

[0022] In a possible implementation of the present application, the method provided in the embodiment of the present application further includes: the first electronic device obtains the level of the power circle of the second electronic device before obtaining the first loss compensation and the first transmission power of the second electronic device during the wireless charging of the first electronic device at the first charging power. The first electronic device determines the charging power for charging the first electronic device according to the level of the power circle of the second electronic device, and different power circle levels correspond to different charging powers, and the first charging power corresponds to the highest power circle level of the second electronic device. This scheme can achieve synchronization between the charging power used by the first electronic device and the power corresponding to the level of the power circle of the second electronic device during the wireless charging process.

[0023] The higher the level of the power circle, the higher the charging power adopted by the first electronic device when determining the charging power.

[0024] Specifically, when the power corresponding to the power circle of the second electronic device is greater than or equal to the first charging power, the first electronic device wirelessly charges the first electronic device at the first charging power. When the power corresponding to the power circle of the second electronic device is less than the first charging power, the first electronic device wirelessly charges the first electronic device at a third charging power. The third charging power is less than the first charging power.

[0025] For example, the first electronic device determines the charging power for charging the first electronic device according to the level of the power circle of the second electronic device, including: the charging power set by the first electronic device is less than or equal to the power corresponding to the level of the power circle of the second electronic device.

[0026] In a possible implementation of the present application, before the first electronic device obtains the level of the power circle of the second electronic device, the method provided in the embodiment of the present application may also include: the first electronic device determines whether the first electronic device has the ability to obtain the level of the power circle of the second electronic device. Accordingly, in the case where the first electronic device has the ability to obtain the level of the power circle of the second electronic device, the first electronic device obtains the level of the power circle of the second electronic device. For example, if the first electronic device determines that it is a device generated by the same manufacturer as the second electronic device, the first electronic device determines that it has the ability to obtain the level of the power circle of the second electronic device.

[0027] Alternatively, although the first electronic device and the second electronic device are devices produced by different manufacturers, the manufacturer of the first electronic device and the manufacturer of the second electronic device support by default that the first electronic device can obtain the level of the power circle of the second electronic device, then it can also be considered that the first electronic device has the ability to obtain the level of the power circle of the second electronic device.

[0028] In a possible implementation of the present application, when the first electronic device does not have the ability to obtain the level of the power circle of the second electronic device, the first electronic device uses the charging power indicated by the QI wireless charging standard protocol to charge the first electronic device. For example, the charging power indicated by the QI wireless charging standard protocol is less than or equal to 10W, such as 5W. The first electronic device uses 5W indicated by the QI wireless charging standard protocol as the charging power of the first electronic device.

[0029] In a possible implementation of the present application, the first electronic device obtaining the first loss compensation and the first transmission power of the second electronic device may include: the first electronic device obtaining the first loss compensation and the first transmission power of the second electronic device using a private fast charging protocol.

[0030] In a possible implementation of the present application, the first electronic device in the embodiment of the present application can also send the first received power / second received power of the first electronic device to the second electronic device, so that the second electronic device can determine whether to wirelessly charge the first electronic device based on the first received power / second received power.

[0031] In a possible implementation of the present application, the first electronic device is a device with a wireless charging function, for example, the first electronic device has a wireless receiving coil, and the second electronic device is a device that provides wireless charging services, for example, the second electronic device has a wireless transmitting coil. The wireless receiving coil in the first electronic device can be coupled with the wireless transmitting coil in the second electronic device, so that the second electronic device performs wireless charging for the first electronic device.

[0032] For example, the first electronic device is a mobile phone, and the second electronic device is a wireless charging base.

[0033] In a second aspect, an embodiment of the present application provides a wireless charging control device, which can implement the method in the first aspect or any possible implementation of the first aspect, and thus can also achieve the beneficial effects in the first aspect or any possible implementation of the first aspect. The wireless charging control device can be a first electronic device, or a device that supports the first electronic device to implement the method in the first aspect or any possible implementation of the first aspect, such as a chip applied to the first electronic device. The wireless charging control device can implement the above method through software, hardware, or by executing corresponding software through hardware.

[0034] As an example, the wireless charging control device may include a processing module and a communication module, wherein the communication module is used to execute the receiving / sending related steps performed by the first electronic device in the above-mentioned first aspect or any possible implementation of the first aspect. The processing module is used to execute the processing related steps performed by the first electronic device in the above-mentioned first aspect or any possible implementation of the first aspect.

[0035] Exemplarily, when the wireless charging control device is a chip or chip system in the first electronic device, the processing module may be a processor, and the communication module may be a communication interface. For example, the communication interface may be an input / output interface, a pin or a circuit, etc. The processing module executes the instructions stored in the storage unit so that the first electronic device implements a wireless charging control method described in the first aspect or any possible implementation of the first aspect. The storage unit may be a storage unit in the chip (e.g., a register, a cache, etc.), or a storage unit in the first electronic device located outside the chip (e.g., a read-only memory, a random access memory, etc.).

[0036] In a third aspect, an embodiment of the present application further provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method described in the first aspect or various possible implementations of the first aspect is implemented.

[0037] In a fourth aspect, an embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the method described in the first aspect or various possible implementations of the first aspect.

[0038] In a fifth aspect, the present application provides a computer program product, including a computer program, which, when executed on a computer, enables the computer to execute the method in the above-mentioned first aspect or any possible implementation manner of the first aspect.

[0039] In a sixth aspect, the present application provides a chip for use in a first electronic device, the chip comprising at least one processor and a communication interface, the communication interface being coupled to at least one processor, the processor being used to run a computer program or instructions to execute the method in the first aspect or any possible implementation of the first aspect, and the communication interface being used to communicate with other modules outside the chip.

[0040] In a seventh aspect, an embodiment of the present application provides a wireless charging system, the wireless charging system comprising a first electronic device and a second electronic device, wherein the first electronic device is used to execute the method in the first aspect or any possible implementation of the first aspect. The second electronic device is used to provide wireless charging service for the first electronic device.

[0041] It can be understood that the beneficial effects that can be achieved by the technical solutions described in the second to seventh aspects provided above can refer to the beneficial effects of the charging control method in the first aspect and any possible design thereof, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A product schematic diagram of a wireless charging system provided in an embodiment of the present application;

[0043] Figure 2 A schematic diagram of the structure of a first electronic device provided in an embodiment of the present application;

[0044] Figure 3 A schematic diagram of the structure of a second electronic device provided in an embodiment of the present application;

[0045] Figure 4 A system architecture diagram of a mobile phone and a wireless charging base provided in an embodiment of the present application;

[0046] Figure 5 A schematic diagram of a wireless charging base triggering wireless charging disconnection provided in an embodiment of the present application;

[0047] Figure 6 A schematic diagram of a flow chart of a wireless charging control method provided in an embodiment of the present application;

[0048] Figure 7 A schematic diagram of a specific flow chart of a wireless charging control method provided in an embodiment of the present application;

[0049] Figure 8 A schematic diagram of the structure of a wireless charging control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0050] In order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second" and the like are used to distinguish the same items or similar items with substantially the same functions and effects. For example, the first electronic device and the second electronic device are only used to distinguish different electronic devices, and the order thereof is not limited. Those skilled in the art can understand that the words "first", "second" and the like do not limit the quantity and execution order, and the words "first", "second" and the like do not necessarily limit the difference.

[0051] It should be noted that, in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0052] The business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Ordinary technicians in this field can know that with the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0053] In the present application, "at least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0054] The steps involved in the wireless charging control method provided in the embodiment of the present application are only examples. Not all steps must be performed, or not all information or content in the message is mandatory. They can be increased or decreased as needed during use.

[0055] In the embodiments of the present application, the same step or steps or messages with the same function in different embodiments can be referenced to each other.

[0056] A schematic diagram of a scenario of a wireless charging system to which a wireless charging control method provided in an embodiment of the present application is applied includes: a first electronic device and a second electronic device.

[0057] The second electronic device can wirelessly charge the first electronic device, that is, the second electronic device can provide a wireless charging service to the first electronic device.

[0058] Specifically, the second electronic device is provided with a wireless charging output component for outputting a wireless charging signal, and the first electronic device is provided with a wireless charging receiving component for receiving a wireless charging signal.

[0059] The wireless receiving component of the first electronic device cooperates with the wireless charging output component of the second electronic device to achieve wireless charging of the second electronic device to the second electronic device.

[0060] The wireless charging output component may include a wireless transmitting coil and a wireless transmitting chip (TX chip) connected to the wireless transmitting coil, etc. The wireless receiving component may include a wireless receiving coil and a wireless receiving chip (RX chip) connected to the wireless receiving coil, etc.

[0061] It should be noted that the wireless transmitting chip described in the embodiments of the present application may be a wireless charging chip with only a transmitting mode, or a wireless charging chip with both a transmitting mode and a receiving mode working in the transmitting mode. Similarly, the wireless receiving chip in the embodiments of the present application may be a wireless charging chip with only a receiving mode, or a wireless charging chip with both a transmitting mode and a receiving mode working in the receiving mode.

[0062] The first electronic device may be an electronic device with a wireless charging function, for example, the first electronic device may be a tablet computer, a mobile phone, a vehicle-mounted device, a laptop computer, an ultramobile personal computer (UMPC), a netbook or a personal digital assistant (PDA), an electric toothbrush, a wireless keyboard, a wireless mouse, a wireless headset or an electronic stylus or a wearable device, etc. There is no limitation on the specific type.

[0063] For example, the second electronic device can also be an electronic device that can provide wireless charging services for the first electronic device. For example, a tablet computer, a mobile phone, a vehicle-mounted device, a laptop computer, a super mobile personal computer, a netbook or a PDA, a wireless charging base for an electric toothbrush, a wireless charging base for a wireless keyboard, a wireless charging base for a wireless mouse, a wireless charging base for a wireless headset or a wireless charging base for an electronic stylus, or a wireless charging base for a mobile phone or other device, or a wireless charging desk lamp. The second electronic device has a wireless charging position, and when the first electronic device is located at the wireless charging position of the second electronic device, the second electronic device can wirelessly charge the first electronic device.

[0064] It can be understood that in the embodiment of the present application, the first electronic device can not only support the wireless charging function, but also support the wired charging function, that is, the first electronic device can use the charging interface to receive the charging input of the wired charger.

[0065] The first electronic device and the second electronic device in the embodiment of the present application support the QI wireless charging standard protocol and the first wireless charging standard protocol, respectively. Among them, the maximum charging power currently supported by the QI wireless charging standard protocol does not exceed 15W. For example, the charging power currently supported by the QI wireless charging standard protocol is 5W or 7.5W or 10W or 15W. The first wireless charging standard protocol can be regarded as a manufacturer's private fast charging protocol. A private fast charging protocol refers to a fast charging protocol specially customized by manufacturers of electronic devices such as mobile phones for their own devices. For example, there are multiple wireless private fast charging protocols such as 27W, 40W, 50W, 55W, 60W, 65W, etc., such as the Honor wireless private fast charging protocol.

[0066] Of course, the second electronic device in the embodiment of the present application may also be provided with a wireless charging switch, and when the wireless charging switch is turned on, the second electronic device can wirelessly charge the first electronic device. Alternatively, when the second electronic device senses that the first electronic device is located at the wireless charging position or the second electronic device senses that the distance between the first electronic device and the second electronic device is less than a preset value, the second electronic device can wirelessly charge the first electronic device.

[0067] The following embodiments are described by taking the first electronic device as a mobile phone and the second electronic device as a wireless charging base, which may also be referred to as a wireless charger, as an example.

[0068] For example, Figure 1 This is a schematic diagram of a product form of a wireless charging system provided in an embodiment of the present application. Figure 1 As shown, the wireless charging system includes a mobile phone 100 and a wireless charging base 200. Of course, the mobile phone 100 is provided with a wireless receiving coil that can receive electromagnetic signals. In this way, when the mobile phone 100 is placed on the charging position of the wireless charging base 200, the wireless transmitting coil provided in the wireless charging base 200 can be coupled with the wireless receiving coil of the mobile phone 100, and the wireless charging base 200 transmits a wireless charging signal to the mobile phone 100 through the coupled wireless transmitting coil and wireless receiving coil, so as to wirelessly charge the mobile phone 100.

[0069] It is understandable that in addition to obtaining power from the second electronic device, the first electronic device in the embodiment of the present application may also have a wireless transmitting coil to charge other electronic devices. Of course, in addition to providing wireless charging services for the first electronic device, the second electronic device may also have a wireless receiving coil to obtain power from other electronic devices. In the case where the second electronic device is a wireless charging base, the wireless charging base can be connected to a power source through a charging interface.

[0070] The following will be combined Figure 2 and Figure 3 The structures of the first electronic device and the second electronic device in the embodiments of the present application are described respectively.

[0071] For example, Figure 2As shown, taking the first electronic device as a mobile phone as an example, the mobile phone may include: a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (USB) interface 130, a first charging management module 142A, a first wireless receiving coil 143, a power management module 142B, a first battery 141, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display screen 194, a positioning module 181 and a subscriber identification module (SIM) card interface 195, etc.

[0072] It is to be understood that the structure illustrated in this embodiment does not constitute a specific limitation on the mobile phone. In other embodiments, the mobile phone may include more or fewer components than shown in the figure, or combine some components, or split some components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of software and hardware.

[0073] The processor 110 may include one or more processing units, for example, the processor 110 may include an application processor (AP), a modem processor, a graphics processor (GPU), an image signal processor (ISP), a controller, a memory, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Different processing units may be independent devices or integrated into one or more processors.

[0074] The controller can be the nerve center and command center of the mobile phone. The controller can generate operation control signals according to the instruction operation code and timing signal to complete the control of fetching and executing instructions.

[0075] The processor 110 may also be provided with a memory for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may store instructions or data that the processor 110 has just used or cyclically used. If the processor 110 needs to use the instruction or data again, it may be directly called from the memory. This avoids repeated access, reduces the waiting time of the processor 110, and thus improves the efficiency of the system.

[0076] In some embodiments, the processor 110 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, a subscriber identity module (SIM) interface, and / or a universal serial bus (USB) interface, etc.

[0077] It is understandable that the interface connection relationship between the modules illustrated in this embodiment is only a schematic illustration and does not constitute a structural limitation on the mobile phone. In other embodiments, the mobile phone may also adopt different interface connection methods in the above embodiments, or a combination of multiple interface connection methods.

[0078] The first charging management module 140 is used to receive charging input from a charger through the charging interface 130. The charger may be a wired charger. In some wired charging embodiments, the first charging management module 142A may receive charging input from a wired charger through a USB interface. In some wireless charging embodiments, the first charging management module 142A may receive wireless charging input through the first wireless charging coil 143 of the mobile phone. While the first charging management module 142A charges the first battery 141, it may also power the mobile phone through the power management module 142B.

[0079] The power management module 142B is used to connect the first battery 141, the first charging management module 142A and the processor 110. The power management module 142B receives input from the first battery 141 and / or the first charging management module 142A, and supplies power to the processor 110, the internal memory 121, the external memory, the display screen 194, the camera 193, and the wireless communication module 160. The power management module 142B can also be used to monitor parameters such as battery capacity, battery cycle number, battery health status (leakage, impedance), etc. In some other embodiments, the power management module 142B can also be set in the processor 110. In other embodiments, the power management module 142B and the first charging management module 142A can also be set in the same device.

[0080] Specifically, Figure 4 As shown, the first charging management module 142A and the first wireless receiving coil 143 can be connected through the first wireless receiving control module and the matching circuit. The first wireless receiving coil 143 can be coupled with the wireless charging transmitting coil (for example, the second wireless transmitting coil 240 of the second electronic device mentioned above), inducing the alternating electromagnetic field emitted by the second wireless transmitting coil 240 to generate an AC signal. The first wireless receiving control module converts the AC signal generated by the second wireless transmitting coil 240 into a DC signal, and transmits it to the first charging management module 142A through the matching circuit, so as to wirelessly charge the first battery 141 of the first electronic device.

[0081] The first charging management module 142A can also provide power to other components in the mobile phone while charging the first battery 141. For example, the first charging management module 142A receives input from the first battery 141 and provides power to the processor 110, the internal memory 11, the external memory, and the wireless communication module 160. In some other embodiments, the first charging management module 142A can also be set in the processor 110.

[0082] In other embodiments, the first electronic device can also charge other mobile terminals. Specifically, the first charging management module 142A can also receive the electrical signal input of the first wireless receiving control module or the first battery 141, and convert the DC signal input by the first wireless receiving control module or the first battery 141 into an AC signal. The AC signal is transmitted to the first wireless transmitting coil of the mobile phone through the matching circuit. The first wireless transmitting coil can generate an alternating electromagnetic field when receiving the AC signal. The wireless receiving coils of other mobile terminals (such as the second wireless receiving coil of the second electronic device mentioned above) can sense the alternating electromagnetic field and perform wireless charging.

[0083] It should be noted that the above-mentioned matching circuit can be integrated into the first charging management module 142A, and the matching circuit can also be independent of the first charging management module 142A, and the embodiment of the present application is not limited to this. Figure 4 Take the example where the matching circuit is integrated into the first charging management module 142A.

[0084] The wireless communication function of the mobile phone can be realized through antenna 1, antenna 2, mobile communication module 150, wireless communication module 160, modem processor and baseband processor.

[0085] Antenna 1 and antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the mobile phone can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve the utilization of the antennas. For example, antenna 1 can be reused as a diversity antenna for a wireless local area network. In some other embodiments, the antenna can be used in combination with a tuning switch.

[0086] The mobile communication module 150 can provide various wireless communication solutions including 2G / 3G / 4G / 5G applied on mobile phones. The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (LNA), etc. The mobile communication module 150 can receive electromagnetic waves from the antenna 1, filter, amplify and process the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modulation and demodulation processor, and convert it into electromagnetic waves for radiation through the antenna 1. In some embodiments, at least some of the functional modules of the mobile communication module 150 can be set in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 can be set in the same device as at least some of the modules of the processor 110. For example, when the mobile phone supports satellite communication (i.e., has satellite communication function), the mobile phone can use the mobile communication module 150 to communicate with the satellite.

[0087] The modulation and demodulation processor may include a modulator and a demodulator, wherein the modulator is used to modulate the low-frequency baseband signal to be transmitted into a medium-high frequency signal, and the demodulator is used to demodulate the received electromagnetic wave signal into a low-frequency baseband signal.

[0088] The wireless communication module 160 can provide wireless communication solutions including wireless local area network (WLAN) (such as wireless fidelity (Wi-Fi) network), Bluetooth, global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), infrared (IR) and the like applied on the mobile phone. The wireless communication module 160 can be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, modulates the frequency of the electromagnetic wave signal and performs filtering, and sends the processed signal to the processor 110. The wireless communication module 160 can also receive the signal to be sent from the processor 110, modulate the frequency of the signal, amplify it, and convert it into electromagnetic waves for radiation through the antenna 2.

[0089] In some embodiments, the antenna 1 of the mobile phone is coupled to the mobile communication module 150, and the antenna 2 is coupled to the wireless communication module 160, so that the mobile phone can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC, FM, and / or IR technology, etc. The GNSS may include global positioning system (GPS), global navigation satellite system (GLONASS), Beidou navigation satellite system (BDS), quasi-zenith satellite system (QZSS) and / or satellite based augmentation system (SBAS).

[0090] The mobile phone implements display functions through a GPU, a display screen 194, and an application processor. The GPU is a microprocessor for image processing, which connects the display screen 194 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or change display information.

[0091] The display screen 194 is used to display images, videos, etc. The display screen 194 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED), a flexible light-emitting diode (FLED), Mini-LED, Micro-OLED, Micro-OLED, quantum dot light-emitting diodes (QLED), etc.

[0092] The mobile phone can realize the shooting function through ISP, camera 193, video codec, GPU, display 194 and application processor.

[0093] ISP is used to process the data fed back by camera 193. For example, when taking a photo, the shutter is opened, and the light is transmitted to the camera photosensitive element through the lens. The light signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to ISP for processing and converts it into an image visible to the naked eye. ISP can also perform algorithm optimization on the noise, brightness, and skin color of the image. ISP can also optimize the exposure, color temperature and other parameters of the shooting scene. In some embodiments, ISP can be set in camera 193.

[0094] The camera 193 is used to capture still images or videos. The object generates an optical image through the lens and projects it onto the photosensitive element. The photosensitive element can be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, and then passes the electrical signal to the ISP to be converted into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into an image signal in a standard RGB, YUV or other format. In some embodiments, the mobile phone may include 1 or N cameras 193, where N is a positive integer greater than 1.

[0095] Digital signal processors are used to process digital signals. In addition to processing digital image signals, they can also process other digital signals. For example, when a mobile phone selects a frequency point, the digital signal processor is used to perform Fourier transform on the frequency point energy.

[0096] Video codecs are used to compress or decompress digital videos. A mobile phone can support one or more video codecs. In this way, the mobile phone can play or record videos in multiple coding formats, such as: Moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, etc.

[0097] NPU is a neural network (NN) computing processor. It can quickly process input information and continuously self-learn by drawing on the structure of biological neural networks, such as the transmission mode between neurons in the human brain. NPU can realize applications such as intelligent cognition of mobile phones, such as image recognition, face recognition, voice recognition, text understanding, etc.

[0098] The mobile phone can realize audio functions such as music playing and recording through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor.

[0099] The audio module 170 is used to convert digital audio information into analog audio signal output, and is also used to convert analog audio input into digital audio signals. The audio module 170 can also be used to encode and decode audio signals. In some embodiments, the audio module 170 can be arranged in the processor 110, or some functional modules of the audio module 170 can be arranged in the processor 110. The speaker 170A, also known as the "speaker", is used to convert audio electrical signals into sound signals. The receiver 170B, also known as the "earpiece", is used to convert audio electrical signals into sound signals. The microphone 170C, also known as the "microphone" or "microphone", is used to convert sound signals into electrical signals.

[0100] The earphone interface 170D is used to connect a wired earphone and can be a USB interface 130 or a 3.5 mm open mobile terminal platform (OMTP) standard interface or a cellular telecommunications industry association of the USA (CTIA) standard interface.

[0101] The external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the mobile phone. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, audio, video and other files are stored in the external memory card.

[0102] The internal memory 121 may be used to store computer executable program codes, which include instructions. The processor 110 executes various functional applications and data processing of the mobile phone by running the instructions stored in the internal memory 121. For example, in an embodiment of the present application, the processor 110 may execute the instructions stored in the internal memory 121, and the internal memory 121 may include a program storage area and a data storage area.

[0103] The program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc. The data storage area may store data created during the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, a universal flash storage (UFS), etc.

[0104] The button 190 includes a power button, a volume button, etc. The button 190 can be a mechanical button. It can also be a touch button. The motor 191 can generate a vibration prompt. The motor 191 can be used for incoming call vibration prompts, and can also be used for touch vibration feedback. The indicator 192 can be an indicator light, which can be used to indicate the charging status, power changes, messages, missed calls, notifications, etc. The SIM card interface 195 is used to connect the SIM card. The SIM card can be inserted into the SIM card interface 195, or pulled out from the SIM card interface 195 to achieve contact and separation with the mobile phone. The mobile phone can support 1 or N SIM card interfaces, where N is a positive integer greater than 1. The SIM card interface 195 can support Nano SIM cards, Micro SIM cards, SIM cards, etc.

[0105] The positioning module 181 can provide a global navigation satellite system (GNSS) solution to realize the positioning function of the mobile phone. The positioning module 181 can receive electromagnetic waves via the antenna 2, modulate and filter the electromagnetic wave signals, and send the processed signals to the processor 110 so that the processor 110 can determine the location information of the device.

[0106] In some embodiments, the antenna 1 of the mobile phone is coupled to the mobile communication module 150, and the antenna 2 is coupled to the positioning module 181. In addition, the above-mentioned GNSS may include a global positioning system (GPS), a global navigation satellite system (GLONASS), a Beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS) and / or a satellite based augmentation system (SBAS).

[0107] The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a position sensor 180M, and the like.

[0108] The pressure sensor 180A is used to sense the pressure signal and can convert the pressure signal into an electrical signal. In some embodiments, the pressure sensor 180A can be set on the display screen 194. There are many types of pressure sensors 180A, such as resistive pressure sensors, inductive pressure sensors, capacitive pressure sensors, etc. The capacitive pressure sensor can be a parallel plate including at least two conductive materials. When a force acts on the pressure sensor 180A, the capacitance between the electrodes changes. The mobile phone determines the intensity of the pressure based on the change in capacitance. When a touch operation acts on the display screen 194, the mobile phone detects the touch operation intensity according to the pressure sensor 180A. The mobile phone can also calculate the touch position according to the detection signal of the pressure sensor 180A. In some embodiments, touch operations acting on the same touch position but with different touch operation intensities can correspond to different operation instructions. For example: when a touch operation with a touch operation intensity less than the first pressure threshold acts on the short message application icon, an instruction to view the short message is executed. When a touch operation with a touch operation intensity greater than or equal to the first pressure threshold acts on the short message application icon, an instruction to create a new short message is executed.

[0109] The gyroscope sensor 180B can be used to determine the motion posture of the mobile phone. In some embodiments, the angular velocity of the mobile phone around three axes (i.e., x, y, and z axes) can be determined by the gyroscope sensor 180B. The gyroscope sensor 180B can be used for anti-shake shooting. For example, when the shutter is pressed, the gyroscope sensor 180B detects the angle of the mobile phone shaking, calculates the distance that the lens module needs to compensate based on the angle, and allows the lens to offset the shaking of the mobile phone through reverse movement to achieve anti-shake. The gyroscope sensor 180B can also be used for navigation and somatosensory game scenes. Of course, in the embodiment of the present application, when the mobile phone is searching for satellites, the gyroscope sensor 180B is used to detect the rotation angle of the mobile phone so that the mobile phone can complete the satellite-seeking action.

[0110] The air pressure sensor 180C is used to measure air pressure. In some embodiments, the mobile phone calculates the altitude through the air pressure value measured by the air pressure sensor 180C to assist positioning and navigation. For example, in the embodiment of the present application, the air pressure can be measured by the air pressure sensor 180C when the mobile phone is in a flight scene to obtain the current altitude of the mobile phone.

[0111] The magnetic sensor 180D includes a Hall sensor. The mobile phone can use the magnetic sensor 180D to detect the opening and closing of the flip leather case. In some embodiments, when the mobile phone is a flip phone, the mobile phone can detect the opening and closing of the flip cover according to the magnetic sensor 180D. Then, according to the detected opening and closing state of the leather case or the opening and closing state of the flip cover, the flip cover automatic unlocking and other features are set.

[0112] The acceleration sensor 180E can detect the magnitude of the acceleration of the mobile phone in all directions (generally three axes). When the mobile phone is stationary, the magnitude and direction of gravity can be detected. It can also be used to identify the posture of the mobile phone, and is applied to applications such as horizontal and vertical screen switching, pedometers, etc. Of course, the acceleration sensor 180E can also be used to determine the moving speed of the mobile phone. In the embodiment of the present application, the mobile phone determines the moving speed of the mobile phone through the acceleration sensor 180E, and then the mobile phone determines whether the speed of the mobile phone is greater than or equal to the preset speed threshold based on the moving speed of the mobile phone. When the speed of the mobile phone is greater than or equal to the preset speed threshold, the mobile phone determines to restrict the mobile phone from communicating with the satellite through the first application.

[0113] The distance sensor 180F is used to measure the distance. The mobile phone can measure the distance through infrared or laser. In some embodiments, when shooting a scene, the mobile phone can use the distance sensor 180F to measure the distance to achieve fast focus.

[0114] The proximity light sensor 180G may include, for example, a light emitting diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode. The mobile phone emits infrared light outward through the light emitting diode. The mobile phone uses a photodiode to detect infrared reflected light from nearby objects. When sufficient reflected light is detected, it can be determined that there is an object near the mobile phone. When insufficient reflected light is detected, the mobile phone can determine that there is no object near the mobile phone. The mobile phone can use the proximity light sensor 180G to detect that the user is holding the mobile phone close to the ear to talk, so as to automatically turn off the screen to save power. The proximity light sensor 180G can also be used in leather case mode and pocket mode to automatically unlock and lock the screen.

[0115] The ambient light sensor 180L is used to sense the ambient light brightness. The mobile phone can adaptively adjust the brightness of the display screen 194 according to the perceived ambient light brightness. The ambient light sensor 180L can also be used to automatically adjust the white balance when taking pictures. The ambient light sensor 180L can also cooperate with the proximity light sensor 180G to detect whether the mobile phone is in a pocket to prevent accidental touches.

[0116] The fingerprint sensor 180H is used to collect fingerprints. The mobile phone can use the collected fingerprint characteristics to achieve fingerprint unlocking, access application locks, fingerprint photography, fingerprint answering calls, etc.

[0117] The temperature sensor 180J is used to detect temperature. In some embodiments, the mobile phone uses the temperature detected by the temperature sensor 180J to execute a temperature processing strategy. For example, when the temperature reported by the temperature sensor 180J exceeds a threshold, the mobile phone reduces the performance of the processor located near the temperature sensor 180J to reduce power consumption and implement thermal protection. In other embodiments, when the temperature is lower than another threshold, the mobile phone heats the battery 142 to avoid abnormal shutdown of the mobile phone due to low temperature. In other embodiments, when the temperature is lower than another threshold, the mobile phone performs a boost on the output voltage of the battery 142 to avoid abnormal shutdown due to low temperature.

[0118] The touch sensor 180K is also called a "touch panel". The touch sensor 180K can be set on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, also called a "touch screen". The touch sensor 180K is used to detect touch operations acting on or near it. The touch sensor can pass the detected touch operation to the application processor to determine the type of touch event. Visual output related to the touch operation can be provided through the display screen 194. In other embodiments, the touch sensor 180K can also be set on the surface of the mobile phone, which is different from the position of the display screen 194.

[0119] The position sensor 180M can obtain the position information of the mobile phone and convert it into a usable output signal. For example, for a mobile phone, the position sensor 180M can be a global positioning system (GPS) sensor, which can determine the longitude and latitude coordinates of the mobile phone, etc., and the embodiments of the present application are not limited to this. For example, taking a mobile phone as an example, the mobile phone in the embodiments of the present application can use the position sensor 180M to obtain the position of the mobile phone (such as longitude and latitude coordinates), and then determine whether the mobile phone is located in a satellite communication restricted control area or an area where satellite communication is possible based on the position of the mobile phone.

[0120] It is to be understood that the structure illustrated in the embodiments of the present application does not constitute a specific limitation on the mobile phone. In other embodiments of the present application, the mobile phone may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange the components differently. The components shown in the figure may be implemented in hardware, software, or a combination of hardware and software.

[0121] In order to make the technical solution of the present application clearer and easier to understand, the method of the embodiment of the present application is illustrated below in combination with the software architecture of a mobile phone.

[0122] Please refer to Figure 3 , Figure 3 This is a schematic diagram of the structure of a second electronic device provided in an embodiment of the present application. Figure 3 As shown, the second electronic device may include a processor 220, a second charging management module 230, at least one first wireless transmitting coil 240, a charging interface 291 and a charging control module 293. The connection relationship between each module is shown in FIG. Figure 3 .

[0123] Optionally, the second electronic device may further include one or more of a second battery 210, a wireless communication module 292 and a sensor 270. The second electronic device 270 may sense whether the mobile phone is close to the charging position of the second electronic device by means of the sensor 270.

[0124] Among them, the memory 260 can be used to store program codes, such as program codes for wireless charging of a first electronic device (such as a mobile phone). The memory 260 can also store a Bluetooth address for uniquely identifying a second electronic device. In addition, the memory 260 can also store connection data of an electronic device that has been successfully paired with the second electronic device before. For example, the connection data can be the Bluetooth address of an electronic device that has been successfully paired with the second electronic device. Based on the connection data, the second electronic device can automatically pair with the electronic device without having to configure a connection therewith, such as performing a legitimacy verification. The above-mentioned Bluetooth address can be a media access control (MAC) address.

[0125] The processor 220 can be used to execute application code and call related modules to implement the functions of the second electronic device in the embodiment of the present application. For example, the forward wireless charging function and wireless communication function of the second electronic device are implemented. The processor 220 may include one or more processing units, and different processing units may be independent devices or integrated in one or more processors 220. The processor 220 may specifically be an integrated control chip, or it may be composed of a circuit including various active and / or passive components, and the circuit is configured to perform the functions belonging to the processor 220 described in the embodiment of the present application. Among them, the processor of the second electronic device may be a central processing unit (CPU).

[0126] The wireless communication module 292 can be used to support data exchange between the second electronic device and other electronic devices, including wireless communications such as Bluetooth (BT), global navigation satellite system (GNSS), wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), frequency modulation (FM), near field communication technology (NFC), infrared technology (IR), etc.

[0127] In some embodiments, the wireless communication module 292 may include a Bluetooth module. The second electronic device may pair with the Bluetooth module of another electronic device through the Bluetooth module and establish a wireless connection to achieve wireless communication between the second electronic device and the other electronic device through the wireless connection.

[0128] In addition, the wireless communication module 292 may also include an antenna. The wireless communication module 292 receives electromagnetic waves via the antenna, modulates the electromagnetic wave signal and performs filtering, and sends the processed signal to the processor 220. The wireless communication module 292 may also receive a signal to be sent from the processor 220, modulate the signal, amplify the signal, and convert it into an electromagnetic wave for radiation through the antenna.

[0129] In some embodiments, the second electronic device may support wired charging. Specifically, the second charging management module 230 may receive charging input from a wired charger through the charging interface 291, and control the charging of the second battery 210 through the charging control module 293, and / or directly power the processor 220, the second charging management module 230, the memory 260, the external memory, and the wireless communication module 292.

[0130] In other embodiments, the second electronic device may support the function of wirelessly charging the first electronic device such as a mobile phone and a tablet computer. The second charging management module 230 may input an electrical signal to at least one first wireless transmitting coil 240. Specifically, the first wireless transmitting coil 240 and the second charging management module 230 are respectively connected through a matching circuit. The first wireless transmitting coil 240 may generate an alternating electromagnetic field in response to the alternating current signal input by the second charging management module 230 to wirelessly charge the mobile phone, tablet computer, etc.

[0131] The second charging management module 230 can also be used to monitor parameters such as battery capacity, battery cycle times, battery health status (leakage, impedance) of the second battery 210. In some other embodiments, the second charging management module 230 can also be set in the processor 220.

[0132] It is understandable that the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the second electronic device. Figure 3 More or fewer components shown may be combined with two or more components, or some components may be separated, or may have different component configurations. For example, the outer surface of the second electronic device may also include components such as buttons, indicator lights (which may indicate battery level, incoming / outgoing call, pairing mode, etc.). The button may be a physical button or a touch button (used in conjunction with a touch sensor), etc., which is used to trigger operations such as power on, power off, start charging, and stop charging.

[0133] like Figure 4 As shown, in one embodiment of the present application, the second charging management module 250 in the embodiment of the present application is connected to the second wireless transmitting coil 240 through a switching module (such as a switch K). In this embodiment, the state of the switch K can be controlled by the second charging management module 230 to adjust the working state of the second wireless transmitting coil 240.

[0134] For example, the switch K can be controlled to close by the second charging management module 230. At this time, the second wireless transmitting coil 240 is in a working state, the wireless charging path where the second wireless transmitting coil 240 is located is turned on, and the second charging management module 230 can provide energy for the second wireless transmitting coil 240, so that the second electronic device can charge the first electronic device. For example, when the second electronic device finds that the condition for Ploss disconnection is met, the second electronic device can control the switch K to disconnect through the second charging management module 230. At this time, the second wireless transmitting coil 240 is in a stopped working state, the wireless charging path where the second wireless transmitting coil 240 is located is disconnected, and the second charging management module 230 cannot provide energy for the second wireless transmitting coil 240, so the second electronic device stops wirelessly charging the first electronic device. For example, the condition for Ploss disconnection can refer to the second electronic device determining that the difference between the power loss (Ploss) and the loss compensation (Ploss_comp) of the second electronic device is greater than 0, that is, when Ploss exceeds Ploss_comp, it will trigger disconnection.

[0135] like Figure 5 As shown, before introducing the wireless charging method provided by the present application, as Figure 5 As shown, let's first briefly describe the communication process between the mobile phone's RX chip and the wireless charging base through the standard QI protocol.

[0136] Step 501: The wireless charging base starts sending a ping signal after being powered on.

[0137] Step 502: When the mobile phone is close to the wireless charging base, the mobile phone receives a ping signal, and the mobile phone uses the RX chip to send a signal strength packet (SSP), an identity packet (IDP), a charging configuration packet (CFGP), etc. to the wireless charging base.

[0138] After step 502, the RX chip may also trigger the mobile phone to turn on the power.

[0139] Step 503: After waiting for the vrect voltage of the RX chip to exceed 6.5V, the low dropout regulator (LDO) of the mobile phone is turned on, and the mobile phone side is activated.

[0140] Step 504, the mobile phone checks whether the wireless charging base is a self-developed base. After the verification is passed, the mobile phone can use other private fast charging protocols to perform 50W high-power charging.

[0141] Step 505: After entering high-power charging, the RX chip calculates the power requirement based on the target voltage and the actual voltage, and transmits this information to the wireless charging base through the CEP (Control Error Package) of the standard QI protocol.

[0142] Step 506: The wireless charging base adjusts the power according to the positive or negative sign and the size of the received CE value.

[0143] Multiple CEPs are interspersed with an RPP (Received Power Package). The function of the RPP is to send the power actually received by the RX chip side (Rp power) to the wireless charging base. The wireless charging base knows the power it actually sends (Pa power), and the power loss Ploss = Pa power – Rp power can be obtained.

[0144] Step 507: When the power loss Ploss exceeds the threshold, the wireless charging base will trigger wireless charging to stop.

[0145] like Figure 6 As shown, Figure 6 A schematic flow chart of a wireless charging method provided in an embodiment of the present application, the method is applied to a first electronic device, and the method includes:

[0146] Step 601: During wireless charging of a first electronic device at a first charging power, the first electronic device obtains a first loss compensation and a first transmission power of a second electronic device.

[0147] For example, the second electronic device is used to provide a wireless charging service for the first electronic device.

[0148] For example, the first transmission power is the actual transmission power of the second electronic device when the second electronic device performs wireless charging for the first electronic device.

[0149] The first loss compensation Ploss_comp actually represents the loss of conversion efficiency during power transmission, for example, the general conversion efficiency is about 75%.

[0150] For example, the first electronic device may obtain the first loss compensation and the first transmission power of the second electronic device from the second electronic device.

[0151] For example, when the second electronic device is charging the first electronic device, the second electronic device may periodically send the first loss compensation and the first transmission power of the second electronic device to the first electronic device. For example, the second electronic device sends the first loss compensation and the first transmission power to the first electronic device using a private fast charging protocol.

[0152] For example, when the second electronic device is charging the first electronic device, the first electronic device may periodically send a request message to the first electronic device to request the second electronic device to provide the first loss compensation and the first transmission power of the second electronic device. At this time, the second electronic device may provide the first loss compensation and the first transmission power of the second electronic device to the first electronic device based on the request message of the first electronic device.

[0153] For example, the first electronic device can use a private fast charging protocol to obtain the first loss compensation and the first transmission power of the second electronic device from the second electronic device.

[0154] In the embodiment of the present application, when the first electronic device charges the first electronic device at the first charging power, it can be considered that the first electronic device enters the high-power charging mode (i.e., the first charging mode). The first charging power can be considered to be one or more charging powers supported by the private fast charging protocol of the first electronic device, such as 27W or 50W.

[0155] In the embodiment of the present application, the first electronic device uses a default charging power when charging, and does not adjust the charging power as the battery temperature increases, or reduces the charging power only after the battery temperature reaches a temperature threshold. The first electronic device can start the first charging mode in the following implementation manner. In the first charging mode, the first electronic device dynamically adjusts the charging power. In other words, the first electronic device will execute steps 601 to 603 in the first charging mode.

[0156] In one implementation, the first electronic device starts the first charging mode in response to a control instruction input by a user.

[0157] In another implementation, when the first electronic device detects that the charging power of the first electronic device is greater than or equal to a preset charging power, the first charging mode is automatically turned on.

[0158] It can be understood that in the embodiment of the present application, when the first electronic device enters a high-power charging mode for wirelessly charging the first electronic device with a first charging power, the first electronic device can periodically (for example, 5 minutes, 10 minutes, or 30 minutes) obtain the first loss compensation and the first transmission power of the second electronic device.

[0159] Of course, since the first electronic device enters the high-power charging mode for wireless charging of the first electronic device with the first charging power for a period of time (for example, 30 minutes or 20 minutes), the heat generated by charging may not trigger the second electronic device to perform Ploss charging disconnection. Therefore, the first electronic device can periodically obtain the first loss compensation and the first transmission power of the second electronic device after entering the high-power charging mode for wireless charging of the first electronic device with the first charging power for a period of time.

[0160] In the embodiment of the present application, the first charging power is the largest among the multiple fast charging powers supported by the first electronic device, or the first charging power is any one of the multiple fast charging powers supported by the first electronic device. The first charging power is less than or equal to the power corresponding to the level of the power circle of the second electronic device. It is understandable that the fast charging power is greater than the charging power indicated by the QI wireless charging standard protocol.

[0161] Step 602: The first electronic device calculates a first power loss according to the first transmission power and the first reception power of the first electronic device.

[0162] For example, the first electronic device can use I2C to obtain the first received power of the first electronic device, that is, the first received power refers to the actual received power of the first electronic device during the process of the second electronic device wirelessly charging the first electronic device.

[0163] For example, the first electronic device may take the difference between the first transmission power and the first reception power as the first power loss.

[0164] Step 603: The first electronic device determines, based on the first loss compensation and the first power loss, that the second electronic device is about to trigger wireless charging interruption, and reduces the charging power of the first electronic device.

[0165] It can be understood that in the embodiment of the present application, the second electronic device is about to trigger the wireless charging disconnection, which means that the second electronic device has not yet triggered the wireless charging disconnection, but the current first loss compensation and the first power loss are relatively close, and the first power loss is less than the first loss compensation. If the first electronic device continues to be charged with the first charging power, when the first power loss is greater than the first loss compensation, the second electronic device will trigger the wireless charging disconnection.

[0166] In the method provided in the embodiment of the present application, since the condition for the second electronic device to trigger wireless charging disconnection is that the power loss determined by the second electronic device is greater than or equal to the first loss compensation of the second electronic device, in the embodiment of the present application, during the charging process of the first electronic device at a high power (for example, the first charging power), the first electronic device obtains the power transmission information (for example, the first loss compensation and the first transmission power) of the second electronic device (i.e., the device providing wireless charging service for the first electronic device), and then the first electronic device can calculate the first power loss according to the first receiving power and the first transmitting power of the first electronic device, and then obtain the first power loss. On the basis of the first power loss, the first electronic device can determine that the second electronic device is about to trigger wireless charging disconnection according to the first loss compensation and the first power loss, and then can reduce the charging power of the first electronic device in advance before the second electronic device triggers wireless charging disconnection to reduce charging heat, and effectively control the overall heat generated by the reduced charging power to the electronic device, thereby avoiding the occurrence of the second electronic device actively disconnecting.

[0167] In a possible implementation of the present application, for the second electronic device, the second electronic device can also calculate the power loss of the second electronic device based on the first receiving power of the first electronic device and the first transmitting power of the second electronic device. If the difference between the power loss of the second electronic device and the first power compensation of the second electronic device is less than a certain set threshold, the second electronic device can send a request message to the first electronic device in advance to request the first electronic device to reduce the charging power, thereby avoiding the second electronic device triggering Ploss disconnection. At this time, for the first electronic device, it can start executing step 601 according to the request message from the second electronic device. Of course, if the second electronic device carries the first loss compensation and the first transmitting power when sending the request message, the first electronic device can execute step 602.

[0168] In a possible implementation of the present application, step 603 in the embodiment of the present application can be implemented in the following manner: when the difference between the first loss compensation and the first power loss is less than or equal to the first loss value, the first electronic device determines that the second electronic device is about to trigger wireless charging disconnection, then the first electronic device reduces the charging power of the first electronic device.

[0169] That is, the first loss compensation Ploss_comp-the first power loss Ploss≤the first loss value buff, which indicates that the second electronic device is about to trigger wireless charging disconnection.

[0170] For example, the first electronic device originally charges the first electronic device at the first charging power. When the difference between the first loss compensation and the first power loss is less than or equal to the first loss value, it indicates that the first power loss is already close to the first loss compensation. If the first electronic device continues to be charged at the first charging power, it is possible that the second charging device stops wirelessly charging the first electronic device, that is, the second electronic device triggers Ploss disconnection. Therefore, in order to avoid Ploss disconnection, the first electronic device can adjust the charging power of the first electronic device from the first charging power to the second charging power in advance. Among them, the first charging power is greater than the second charging power.

[0171] For example, when the first electronic device charges the first electronic device at a first charging power of 27W, the first electronic device finds that the difference between the first loss compensation and the first power loss is less than or equal to the first loss value, in order to avoid the second electronic device triggering Ploss charging disconnection, the first electronic device can reduce the charging power of the first electronic device from 27W to 10W or 5W.

[0172] In a possible embodiment of the present application, the first electronic device determines that the second electronic device will not trigger wireless charging disconnection based on the first loss compensation and the first power loss, and the first electronic device maintains wireless charging for the first electronic device at the first charging power.

[0173] In a possible implementation of the present application, the first electronic device determines, based on the first loss compensation and the first power loss, that the second electronic device will not trigger wireless charging interruption, and the first electronic device maintains wireless charging for the first electronic device at the first charging power, including:

[0174] When the difference between the first loss compensation and the first power loss is greater than the first loss value, it indicates that the second electronic device will not trigger wireless charging disconnection, and the first electronic device maintains the charging power of the first electronic device at the first charging power to perform wireless charging for the first electronic device.

[0175] When the difference between the first loss compensation and the first power loss is greater than the first loss value, it means that when the first electronic device is charging the first electronic device with a high power such as the first charging power, the condition for the second electronic device to trigger Ploss charging disconnection is not met. Therefore, the first electronic device can continue to charge the first electronic device with the first charging power to improve the charging efficiency.

[0176] The first loss value is used to inform the first electronic device in advance before the second electronic device triggers the Ploss disconnection, and to limit the power to ensure that the disconnection does not occur. The first loss value can be a fixed value, and of course, the first loss value can also be determined according to the first received power.

[0177] In a possible embodiment of the present application, the method provided in the embodiment of the present application further includes: the first electronic device determines a first loss value according to the first received power. The first loss value facilitates the first electronic device to perform a power reduction operation in advance before the second electronic device triggers Ploss charging to stop.

[0178] For example, the first electronic device sets the first loss value according to the first received power, including: when the first received power is greater than or equal to the first power threshold, the first electronic device sets the first loss value to the first power value. When the first received power is less than the first power threshold, the first electronic device sets the first loss value to the second power value, and the first power value is greater than the second power value.

[0179] For example, the first power threshold may be 20 W. The first power value may be 2.5 W, and the second power value may be 1.5 W. The embodiment of the present application does not limit the specific values ​​of the first power value, the second power value, and the first power threshold, and they may be set as needed in the actual process.

[0180] In a possible embodiment of the present application, after the first electronic device reduces the charging power of the first electronic device, that is, when the first electronic device enters the state of wirelessly charging the first electronic device at the second charging power, the first electronic device can restore the charging power of the first electronic device from the second charging power to the first charging power after a preset time. For example, the first electronic device can restore the charging power of the first electronic device to the first charging power after charging the first electronic device at the second charging power for 5 minutes or 10 minutes.

[0181] The length of the preset time can be set according to needs, and the embodiment of the present application does not limit this.

[0182] In a possible embodiment of the present application, after the first electronic device reduces the charging power of the first electronic device, the method provided in the embodiment of the present application further includes:

[0183] The first electronic device obtains a second power loss.

[0184] The first electronic device determines whether to re-control charging of the first electronic device with the first charging power according to the second power loss and the second loss value.

[0185] The second power loss is the power loss determined by the first electronic device when the first electronic device charges the first electronic device with a reduced charging power (such as the second charging power).

[0186] For example, after reducing the charging power, the first electronic device can reacquire the transmission power (such as the second transmission power) of the second electronic device, and reacquire the receiving power (hereinafter referred to as the second receiving power) of the first electronic device. Then the first electronic device can calculate the second power loss based on the second transmission power and the second receiving power. For example, the first electronic device uses the difference between the second transmission power and the second receiving power as the second power loss.

[0187] It is understandable that after the first electronic device reduces the charging power of the first electronic device, the first electronic device can obtain the second transmission power and the second loss compensation of the second electronic device from the second electronic device at preset intervals (such as 3 minutes or 5 minutes) or in real time. Then the first electronic device calculates the second power loss according to the second transmission power and the second reception power, and decides whether to re-control the charging of the first electronic device with the first charging power.

[0188] It is understandable that after the first electronic device reduces the charging power of the first electronic device, the first electronic device may determine the second receiving power of the first electronic device at preset intervals (such as 3 minutes or 5 minutes) or in real time, and determine the second loss value according to the second receiving power.

[0189] The specific process of how the first electronic device determines the second loss value based on the second received power can be referred to the above-mentioned process of the first electronic device determining the first loss value based on the first received power, which will not be repeated here.

[0190] In a possible implementation of the present application, the first electronic device determines whether to re-control the first electronic device to wirelessly charge with the first charging power according to the second power loss and the second loss value, including:

[0191] When a first condition is met, the first electronic device controls to charge the first electronic device with a first charging power, wherein the first condition includes: a difference between the second loss compensation of the second electronic device and the second power loss is greater than a second threshold, wherein the second threshold is determined by the second loss value.

[0192] When the first condition is not met (i.e., the difference between the second loss compensation and the second power loss is less than or equal to the second threshold), the first electronic device continues to charge the first electronic device with a reduced charging power (such as the second charging power) and performs the step of reacquiring the second power loss.

[0193] For example, the second threshold may be the second loss value, or the second threshold may be a value greater than the second loss value, for example, the second loss value is equal to the second loss value+loss buff_back.

[0194] In a possible implementation manner of the present application, the first condition further includes: a value of ploss_cnt is less than or equal to a first threshold.

[0195] Specifically, when the difference between the second loss compensation and the second power loss of the second electronic device is greater than the second threshold value, and the value of ploss_cnt is less than or equal to the first threshold value, the first electronic device controls to charge the first electronic device with the first charging power, that is, the first electronic device re-enters the high-power charging mode. When the difference between the second loss compensation and the second power loss of the second electronic device is greater than the second threshold value, and the value of ploss_cnt is greater than the first threshold value, or the difference between the second loss compensation and the second power loss of the second electronic device is less than or equal to the second threshold value, the first electronic device continues to charge the first electronic device with the reduced charging power (such as the second charging power), that is, the first electronic device will not re-enter the high-power charging mode again.

[0196] The embodiment of the present application does not specifically limit the first threshold value, and it can be set as needed in the actual process. For example, the first threshold value can be 2 or 3 or 4, etc.

[0197] In a possible implementation of the present application, the method provided in the embodiment of the present application further includes: during a wireless charging process, when the charging power of the first electronic device is reduced from the first charging power to the second charging power, the number of times of exiting high-power charging (i.e., ploss_cnt) is increased by a preset value. For example, the preset value may be 1. Each time wireless charging is performed, the initial value of ploss_cnt is 0.

[0198] It is understandable that the second charging power may be the charging power indicated by the QI wireless charging standard protocol, or a power value less than the first charging power among the multiple charging powers supported by the first electronic device in the high-power charging mode. For example, the multiple charging powers supported by the first electronic device in the high-power charging mode include 27W, 50W, and 60W. If the first charging power is 50W, the second charging power may be 5W, 10W, or 15W.

[0199] As an example, the first electronic device may have a counter, which is used to record the number of times the first electronic device exits high-power charging. It is understandable that when one wireless charging ends, the first electronic device sets the value of the counter to 0.

[0200] In a possible implementation of the present application, the method provided in the embodiment of the present application also includes: the first electronic device determines whether it has the ability to obtain the level of the power circle of the second electronic device. In the case where the first electronic device has the ability to obtain the level of the power circle of the second electronic device, the first electronic device obtains the level of the power circle of the second electronic device. The first electronic device determines the charging power for charging the first electronic device based on the level of the power circle of the second electronic device, and different power circle levels correspond to different charging powers.

[0201] For example, if the power level of the second electronic device is 5W / 27W / 50W, then if the first electronic device obtains that the power level of the second electronic device is 5W, then the first electronic device determines to use 5W as the charging power of the first electronic device. If the first electronic device obtains that the power level of the second electronic device is 27W or 50W, then the first electronic device determines to use 27W or 5W as the charging power of the first electronic device.

[0202] It is understandable that, when the first electronic device obtains the level of the power circle of the second electronic device, the first electronic device can determine that the charging power of the first electronic device cannot exceed the charging power corresponding to the level of the power circle of the second electronic device. For example, if the first electronic device determines that the charging power corresponding to the level of the power circle of the second electronic device is 27W, the first electronic device can use 27W as the first charging power, thereby entering the high-power charging mode.

[0203] In the embodiment of the present application, after the first electronic device obtains the level of the power circle of the second electronic device, the first electronic device needs to perform corresponding processing to ensure that the charging power of the first electronic device is synchronized with the power corresponding to the level of the power circle of the second electronic device.

[0204] As an example, the first electronic device can obtain the basic information of the second electronic device. If the basic information of the second electronic device indicates that the second electronic device and the first electronic device are from the same manufacturer, the first electronic device determines that it has the ability to obtain the level of the power circle of the second electronic device. If the basic information of the second electronic device indicates that the second electronic device and the first electronic device are not from the same manufacturer, the first electronic device determines that it does not have the ability to obtain the level of the power circle of the second electronic device.

[0205] In the case that the first electronic device does not have the ability to obtain the level of the power circle of the second electronic device, the first electronic device charges the first electronic device using the charging power indicated by the QI standard charging protocol.

[0206] In a possible implementation of the present application, the method provided in the embodiment of the present application may further include:

[0207] When the first electronic device enters a high-power charging mode (such as wireless charging at a first charging power), the second electronic device obtains the first receiving power of the first electronic device. Then the second electronic device calculates the power loss based on the first receiving power and the first transmitting power of the second electronic device. The second electronic device compares the power loss with the first loss compensation Ploss_comp. When Ploss exceeds the first Ploss_comp, the second electronic device will trigger Ploss charging to be disconnected. When Ploss is less than Ploss_comp, the second electronic device will not trigger Ploss charging to be disconnected. The triggering of Ploss charging by the second electronic device can refer to the second electronic device disconnecting such as Figure 4 A switch K is shown between the second charging management module 230 and the second wireless transmitting coil 240 .

[0208] For example, power loss Ploss=first Pa power−first Rp power, wherein the first Pa power represents the first receiving power of the first electronic device, and the first Rp power represents the first transmitting power of the second electronic device.

[0209] In the following, the first electronic device is a mobile phone and the second electronic device is a wireless charging base. Figure 7 As shown, the specific implementation process of a wireless charging method provided by an embodiment of the present application is described in detail.

[0210] Step 701: Place the mobile phone on the wireless charging position of the wireless charging base.

[0211] Step 702: The wireless charging base determines whether a large piece of metal is identified.

[0212] Step 703: When the wireless charging base recognizes a large piece of metal, the wireless charging base ends the wireless charging process.

[0213] Step 704: When the wireless charging base does not identify any large metal, the TX chip of the wireless charging base provides energy to activate the RX chip of the mobile phone.

[0214] Step 705: The mobile phone determines whether it has the ability to obtain the power circle of the wireless charging base.

[0215] For example, the mobile phone determines whether the wireless charging base is a self-developed base.

[0216] When the mobile phone determines that the wireless charging base is a self-developed base, the mobile phone determines that it has the ability to obtain the power circle of the wireless charging base.

[0217] When the mobile phone determines that the wireless charging base is not a self-developed base, the mobile phone determines that it does not have the ability to obtain the power circle of the wireless charging base.

[0218] That is, the mobile phone determines whether the manufacturers of the mobile phone and the wireless charging base are the same manufacturer. If the manufacturers of the mobile phone and the wireless charging base are the same manufacturer, it is determined that the wireless charging base is a self-developed base.

[0219] If the manufacturers of the mobile phone and the wireless charging base are not the same manufacturer, make sure that the wireless charging base is not a self-developed base.

[0220] Step 706: If the mobile phone does not have the ability to obtain the power circle of the wireless charging base, the mobile phone uses the QI standard protocol to charge.

[0221] Step 707: If the mobile phone has the ability to obtain the power circle of the wireless charging base, the mobile phone obtains the level / gear of the power circle of the wireless charging base.

[0222] Step 708: The mobile phone determines whether the level / gear of the power circle of the wireless charging base is 5W.

[0223] Step 709: When the power ring of the wireless charging base is at 5W, the mobile phone is charged at a charging power of 5W.

[0224] Step 710: When the power level of the wireless charging base is not 5W, the mobile phone determines whether the power level of the wireless charging base is 27W.

[0225] Step 711: When the power level of the wireless charging base is 27W, the mobile phone limits the charging power and enters high-power charging in step 712. For example, the first electronic device can reduce the charging current of the first electronic device.

[0226] Step 712: When the power ring of the wireless charging base is neither at 5W nor at 27W, high-power charging is started.

[0227] Optionally, after step 712, that is, when the mobile phone enters the high-power charging mode, the method provided in the embodiment of the present application may further include:

[0228] Step 713: When high-power charging is started, the mobile phone obtains a first transmission power (Pa power) and a first loss compensation (Ploss_comp) of the wireless charging base through a private protocol.

[0229] The first Ploss_comp actually represents the loss of conversion efficiency during the power transmission process, and the general conversion efficiency is about 75%.

[0230] Step 714: The mobile phone obtains the first receiving power Rp power of the mobile phone.

[0231] For example, the mobile phone uses I2C to obtain the first receiving power Rp power of the mobile phone.

[0232] Step 715: The mobile phone calculates a first power loss Ploss according to the first receiving power Rp power and the first transmitting power Pa power of the wireless charging base.

[0233] For example, the first power loss Ploss=Pa power−Rp power.

[0234] Step 716: The mobile phone sets a first Ploss_buff according to the current actual power dynamics and the first power threshold.

[0235] For example, the first power threshold is 20W, as shown in step 7162, when the received power Rp power exceeds 20W, the first Ploss_buff is set to 2.5W. As shown in step 7161, when the received power Rp power is less than 20W, the first Ploss_buff is set to 1.5W, because the smaller the power, the smaller the loss power.

[0236] Step 717: The mobile phone determines whether the charging power of the mobile phone needs to be reduced by comparing the difference between the first loss compensation Ploss_comp of the wireless charging base and the first power loss Ploss with the size of the first Ploss_buff.

[0237] For example, if Ploss_comp−first power loss Ploss is greater than first Ploss_buff, step 713 is executed.

[0238] For example, if Ploss_comp−first power loss Ploss is less than or equal to first Ploss_buff, the following step 718 is performed.

[0239] Step 718: The mobile phone exits the high-power charging mode and charges the mobile phone at a second charging power (eg, 10W).

[0240] Optionally, when the mobile phone exits the high-power charging mode, the mobile phone may also count the number of times the mobile phone exits the high-power charging mode, for example, the mobile phone executes the following step 719.

[0241] Step 719: The mobile phone increases the number of times the mobile phone exits the high-power charging mode by a preset value.

[0242] It is understandable that the initial value of the number of times the mobile phone exits the high-power charging mode is 0. During a wireless charging process, each time the mobile phone exits the high-power charging mode, the number of times the mobile phone exits the high-power charging mode increases by a preset value, such as 1. For example, during this wireless charging process, if the mobile phone exits the high-power charging mode for the first time, the mobile phone sets the number of times the mobile phone exits the high-power charging mode to 1.

[0243] Optionally, after step 719, that is, when the mobile phone exits the high-power charging mode and is charging the mobile phone at the second charging power in accordance with step 720, in order to achieve fast charging, the method provided in the embodiment of the present application may further include a reset mechanism, that is, when the charging power of the mobile phone is reduced, the mobile phone continues to detect power loss, and determines whether to re-enter high-power charging through the loss buff. The specific process is as shown in steps 720 to 725.

[0244] Step 720: The mobile phone is charged at a second charging power.

[0245] It is understandable that when the mobile phone reduces the charging power, for example, after charging with the second charging power, the receiving power of the mobile phone, the transmitting power of the base, and the loss compensation of the base will all change.

[0246] Step 721: While the mobile phone is charging at the second charging power, the mobile phone reacquires the second loss compensation, the second transmission power, and the second receiving power of the wireless charging base.

[0247] For the specific implementation of step 721, reference may be made to the implementation of the above-mentioned steps 713 and 714, which will not be repeated here.

[0248] Step 722: The mobile phone calculates a second power loss Ploss according to the second transmit power and the second receive power of the mobile phone.

[0249] Optionally, after step 722, the method provided in the embodiment of the present application may further include:

[0250] Step 723: The mobile phone sets a second loss value according to the second receiving power.

[0251] After the mobile phone obtains the second loss value, the mobile phone determines whether to re-enter the high-power charging mode of charging with the first charging power according to the relationship between the difference between the second power loss Ploss and the second loss compensation and the second loss value.

[0252] Step 724: The mobile phone determines the relationship between the difference between the second power loss Ploss and the second loss compensation and the second loss value.

[0253] When the difference between the second power loss Ploss and the second loss compensation is greater than the second loss value, the mobile phone executes step 725, i.e. enters the high-power charging mode. When the difference between the second power loss Ploss and the second loss compensation is less than or equal to the second loss value, the mobile phone executes step 721.

[0254] As a possible implementation, when the difference between the second power loss Ploss and the second loss compensation is greater than the second loss value + Ploss_buff_back, the mobile phone executes step 725, i.e., enters the high-power charging mode. When the difference between the second power loss Ploss and the second loss compensation is less than or equal to the second loss value + Ploss_buff_back, the mobile phone executes step 721. Ploss_buff_back can be set according to actual needs.

[0255] As another possible implementation, in order to ensure that the charging power is not frequently switched during a charging process, a new variable Ploss_cnt is added to control the number of times the high-power charging mode is exited. When ploss_cnt>2, high-power charging will not be entered. This ensures continuous charging and charging speed, which can improve the user's charging experience. Specifically, when the difference between the second power loss Ploss and the second loss compensation is greater than the second loss value + Ploss_buff_back, and ploss_cn is less than or equal to 2, the mobile phone executes step 725. When the difference between the second power loss Ploss and the second loss compensation is greater than the second loss value + Ploss_buff_back, and ploss_cn is greater than 2, or the difference between the second power loss Ploss and the second loss compensation is less than or equal to the second loss value + Ploss_buff_back, the mobile phone executes step 721.

[0256] Alternatively, when the difference between the second power loss Ploss and the second loss compensation is greater than the second loss value, and Ploss_cn is less than or equal to 2, the mobile phone executes step 725; when the difference between the second power loss Ploss and the second loss compensation is greater than the second loss value, and Ploss_cn is greater than 2, or the difference between the second power loss Ploss and the second loss compensation is less than or equal to the second loss value, the mobile phone executes step 721.

[0257] Step 725: The mobile phone re-enters the high-power charging mode, for example, charging the mobile phone at the first charging power.

[0258] Optional, such as Figure 8 As shown, when the mobile phone enters the high-power charging mode, the wireless charging base can execute steps 704A to 706A.

[0259] Step 704A: The wireless charging base obtains a first receiving power of the mobile phone and a first transmitting power of the wireless charging base.

[0260] Step 705A: The wireless charging base calculates the power loss of the wireless charging base.

[0261] For example, the power loss of the wireless charging base is equal to the difference between the first transmitting power and the first receiving power.

[0262] Step 706A: The wireless charging base determines that the power loss exceeds a set threshold (such as Ploss_comp), triggers charging to be disconnected, and actively cuts off the power.

[0263] For example, if the power loss of the wireless charging base Ploss–Ploss_comp>0, the wireless charging base triggers Ploss to disconnect charging.

[0264] The above describes in detail an example of a control method for wireless charging provided in an embodiment of the present application. It is understandable that, in order to implement the above functions, the first electronic device includes hardware and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application in combination with the embodiments, but such implementation should not be considered to be beyond the scope of the present application.

[0265] The embodiment of the present application can divide the functional modules of the first electronic device according to the above method example. For example, each function can be divided into various functional modules, such as an acquisition unit, a determination unit, a power control unit, etc., or two or more functions can be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0266] It should be noted that all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module and will not be repeated here.

[0267] like Figure 8 As shown, an embodiment of the present application provides a wireless charging control device, which is applied to a first electronic device, and the device includes:

[0268] The acquisition unit 801 is used to acquire a first loss compensation and a first transmission power of a second electronic device during a process in which a first electronic device is wirelessly charged at a first charging power. The second electronic device is used to provide a wireless charging service for the first electronic device.

[0269] The determining unit 802 is configured to calculate a first power loss according to the first transmitting power and the first receiving power of the first electronic device.

[0270] The power control unit 803 is used to determine that the second electronic device is about to trigger wireless charging interruption according to the first loss compensation and the first power loss, and reduce the charging power of the first electronic device.

[0271] In a possible implementation of the present application, the power control unit 803 is further used to determine, based on the first loss compensation and the first power loss, that the second electronic device will not trigger wireless charging disconnection, and then continue to charge the first electronic device at the first charging power.

[0272] In a possible implementation of the present application, the determination unit 802 is further configured to: set a first loss value according to the first receiving power.

[0273] In a possible implementation of the present application, the determining unit 802 is further specifically configured to: when the first received power is greater than or equal to a first power threshold, determine that the first loss value is the first power value; when the first received power is less than the first power threshold, determine that the first loss value is a second power value, and the first power value is greater than the second power value.

[0274] In a possible implementation of the present application, the power control unit 803 is specifically configured to reduce the charging power of the first electronic device to a second charging power when the difference between the first loss compensation and the first power loss is less than or equal to the first loss value, indicating that the second electronic device is about to trigger wireless charging disconnection. The first charging power is greater than the second charging power.

[0275] In a possible implementation of the present application, the power control unit 803 is specifically used to maintain the charging power of the first electronic device at the first charging power when the difference between the first loss compensation and the first power loss is greater than the first loss value, indicating that the condition for the second electronic device to trigger wireless charging disconnection has not been met.

[0276] In a possible implementation of the present application, the determination unit 802 is further configured to determine a second power loss of the first electronic device during the wireless charging process after reducing the charging power of the first electronic device. The power control unit 803 is further configured to determine whether to re-control charging of the first electronic device with the first charging power according to the second power loss and the second loss value.

[0277] In a possible implementation of the present application, the determination unit 802 is further specifically configured to re-control the charging of the first electronic device with the first charging power when a first condition is met, the first condition comprising: the difference between the second loss compensation of the second electronic device and the second power loss is greater than a second threshold, and the second threshold is determined by the second loss value. When the first condition is not met, the charging of the first electronic device with the reduced charging power is maintained, and the step of re-acquiring the second power loss is performed.

[0278] In a possible implementation of the present application, the first condition also includes: the number of times of exiting high-power charging is less than or equal to a first threshold.

[0279] In a possible implementation of the present application, the wireless charging control device provided in the embodiment of the present application also includes: a statistical unit, which is used to increase the number of times of exiting high-power charging by a preset value when the charging power of the first electronic device is reduced from the first charging power to the second charging power during a wireless charging process.

[0280] In a possible implementation of the present application, the wireless charging control device provided in the embodiment of the present application further includes: a judgment unit, used to judge whether the first electronic device has the ability to obtain the level of the power circle of the second electronic device. In the case where the first electronic device has the ability to obtain the level of the power circle of the second electronic device, the acquisition unit 801 is further used to obtain the level of the power circle of the second electronic device, and different power circle levels correspond to different charging powers;

[0281] The power control unit 803 is also used to determine the charging power for charging the first electronic device according to the level of the power circle of the second electronic device, and when the charging power corresponding to the level of the power circle of the second electronic device is greater than or equal to the first charging power, the first charging power is used to wirelessly charge the first electronic device.

[0282] The power control unit 803 is further configured to charge the first electronic device using the charging power indicated by the QI wireless charging standard protocol when the first electronic device does not have the ability to obtain the level of the power circle of the second electronic device.

[0283] In the case of an integrated unit, the first electronic device may further include a processing module, a storage module and a communication module. The processing module may be used to control and manage the actions of the first electronic device. The storage module may be used to support the first electronic device to execute stored program codes and data, etc. The communication module may be used to support the communication between the first electronic device and other devices.

[0284] Among them, the processing module can be a processor or a controller. It can implement or execute various exemplary logic boxes, modules and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of digital signal processing (DSP) and a microprocessor, etc. The storage module can be a memory. The communication module can specifically be a device that interacts with other electronic devices, such as a radio frequency circuit, a Bluetooth chip, a Wi-Fi chip, etc.

[0285] In one embodiment, when the processing module is a processor and the storage module is a memory, the first electronic device involved in this embodiment may be a Figure 2 Device of the structure shown.

[0286] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the processor executes the wireless charging control method of any of the above embodiments.

[0287] The embodiment of the present application also provides a computer program product. When the computer program product is run on a computer, the computer is enabled to execute the above-mentioned related steps to implement the wireless charging control method in the above-mentioned embodiment.

[0288] In addition, an embodiment of the present application also provides a wireless charging control device, which may specifically be a chip, component or module, and the device may include a connected processor and memory; wherein the memory is used to store computer-executable instructions, and when the device is running, the processor may execute the computer-executable instructions stored in the memory so that the chip executes the wireless charging control method in the above-mentioned method embodiments.

[0289] Among them, the first electronic device, computer-readable storage medium, computer program product or chip provided in this embodiment are all used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods provided above and will not be repeated here.

[0290] Through the description of the above implementation methods, technical personnel in the relevant field can understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0291] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of modules or units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0292] The units described as separate components may or may not be physically separated, and the components shown as units may be one physical unit or multiple physical units, that is, they may be located in one place or distributed in multiple different places. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0293] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0294] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium, including several instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

[0295] The above contents are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A wireless charging control method, characterized in that: Applied to a first electronic device, the method includes: During the wireless charging of the first electronic device at the first charging power, obtaining a first loss compensation and a first transmission power of a second electronic device, wherein the second electronic device is used to provide a wireless charging service for the first electronic device; Calculate a first power loss according to the first transmission power and the first reception power of the first electronic device; When the difference between the first loss compensation and the first power loss is less than or equal to the first loss value, it is determined that the second electronic device is about to trigger wireless charging disconnection, and the charging power of the first electronic device is reduced to a second charging power, wherein the first charging power is greater than the second charging power.

2. The method according to claim 1, characterized in that The method further comprises: The first loss value is determined according to the first received power.

3. The method according to claim 2, characterized in that The determining the first loss value according to the first received power includes: The first received power is greater than or equal to a first power threshold, and the first loss value is determined to be a first power value; The first received power is less than the first power threshold, and the first loss value is determined to be a second power value, and the first power value is greater than the second power value.

4. The method according to any one of claims 1 to 3, characterized in that: The method further comprises: After reducing the charging power of the first electronic device, obtaining a second power loss determined by the first electronic device during the wireless charging process; Whether to re-control the charging of the first electronic device with the first charging power is determined according to the second power loss and the second loss value.

5. The method according to claim 4, characterized in that The determining, according to the second power loss and the second loss value, whether to re-control the charging of the first electronic device with the first charging power includes: When a first condition is met, wireless charging of the first electronic device with the first charging power is re-controlled, wherein the first condition includes: a difference between the second loss compensation of the second electronic device and the second power loss is greater than a second threshold, and the second threshold is determined by the second loss value; When the first condition is not met, the wireless charging of the first electronic device is maintained at the reduced charging power, and the step of reacquiring the second power loss is performed.

6. The method according to claim 5, characterized in that The first condition also includes: the number of times of exiting high-power charging is less than or equal to a first threshold.

7. The method according to any one of claims 1 to 3, characterized in that: The method further comprises: During a wireless charging process, when the charging power of the first electronic device is reduced from the first charging power to the second charging power, the number of times of exiting high-power charging is increased by a preset value.

8. The method according to any one of claims 1 to 3, characterized in that: Before obtaining the first loss compensation and the first transmission power of the second electronic device during the wireless charging of the first electronic device at the first charging power, the method further includes: Determining whether the first electronic device has the ability to obtain the level of the power circle of the second electronic device; In the case where the first electronic device has the ability to obtain the level of the power circle of the second electronic device, the level of the power circle of the second electronic device is obtained, and different power circle levels correspond to different charging powers; According to the level of the power circle of the second electronic device, a charging power for wireless charging is determined for the first electronic device; when the charging power corresponding to the level of the power circle of the second electronic device is greater than or equal to the first charging power, the first charging power is used to wirelessly charge the first electronic device.

9. The method according to claim 8, characterized in that When the first electronic device does not have the ability to obtain the level of the power circle of the second electronic device, the first electronic device is charged using the charging power indicated by the QI wireless charging standard protocol.

10. The method according to any one of claims 1 to 3, characterized in that: The method further comprises: According to the first loss compensation and the first power loss, it is determined that the second electronic device will not trigger wireless charging interruption, and the charging power of the first electronic device is maintained.

11. The method according to claim 10, characterized in that The determining, based on the first loss compensation and the first power loss, that the second electronic device will not trigger wireless charging disconnection and maintaining the charging power of the first electronic device includes: When the difference between the first loss compensation and the first power loss is greater than the first loss value, it is determined that the second electronic device will not trigger wireless charging interruption, and the charging power of the first electronic device is maintained.

12. A wireless charging control device, characterized in that: Applied in a first electronic device, the wireless charging control device comprises: an acquisition unit, configured to acquire a first loss compensation and a first transmission power of a second electronic device when the first charging power is used as the charging power of the first electronic device during the wireless charging process, wherein the second electronic device is configured to provide a wireless charging service for the first electronic device; a determining unit, configured to calculate a first power loss according to the first transmitting power and a first receiving power of the first electronic device; A power control unit is used to determine that the second electronic device is about to trigger wireless charging disconnection when the difference between the first loss compensation and the first power loss is less than or equal to the first loss value, and then reduce the charging power of the first electronic device to a second charging power, wherein the first charging power is greater than the second charging power.

13. A wireless charging system, characterized in that: include: A first electronic device and a second electronic device, wherein the first electronic device is used to execute the method according to any one of claims 1 to 11, and the second electronic device is used to provide a wireless charging service for the first electronic device.

14. The wireless charging system according to claim 13, characterized in that: The second electronic device is a wireless charging base.

15. An electronic device, characterized in that: The method comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method according to any one of claims 1 to 11 when executing the computer program.

16. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 11 is implemented.

17. A chip, characterized in that: Including processors; The processor is configured to read and execute a computer program stored in a memory to perform the method according to any one of claims 1 to 11.

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