Wireless charging circuit, chip, equipment, method and device and storage medium

Abstract

The invention relates to a wireless charging circuit, a chip, equipment, a method, a device and a storage medium. The wireless charging circuit comprises a first detection circuit used for detecting a first signal; a second signal is generated based on the first signal and output to the second detection circuit; the second detection circuit is used for controlling the first pin to output a first level state based on the time interval of detecting the second signal; the first pin is used for outputting a first level state based on the control of the second detection circuit so as to control the operation state of the processor of the wireless charging receiving end to be a first operation state; and the second pin is used for controlling the second detection circuit to detect the second signal when the wireless charging receiving end completes charging and the AP is in the first operation state. The low-power-consumption detection circuit is adopted for detection, so that the power consumption of the fully-charged battery is reduced, the charging temperature is reduced, and the charging efficiency of wireless charging is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of wireless charging technology, and in particular to a wireless charging circuit, chip, device, method, apparatus and storage medium. Background Art

[0002] With the rapid development of wireless charging technology and the increasing demand for wireless charging, wireless charging has become one of the essential charging methods for mobile devices in daily life. At present, the mainstream mode of wireless charging is electromagnetic induction wireless charging.

[0003] However, the energy conversion efficiency of wireless charging is not as high as that of wired charging, and wireless charging has problems such as easy overheating. Summary of the Invention

[0004] To overcome the problems existing in the related art, the present disclosure provides a wireless charging circuit, chip, device, method, apparatus and storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, a wireless charging circuit is provided, including: a first detection circuit, configured to detect a first signal, wherein the first signal is used to request a wireless charging transmitter to charge a wireless charging receiver; a second signal is generated based on the first signal, wherein the second signal is used to indicate that the wireless charging transmitter is in place and is output to a second detection circuit; a second detection circuit, configured to control a first pin to output a first electrical level state based on a time interval for detecting the second signal; a first pin, configured to output a first electrical level state based on control of the second detection circuit, so as to control the operating state of a processor of the wireless charging receiver to be a first operating state, wherein the battery power consumed in the first operating state is less than a first power threshold; and a second pin, configured to control the second detection circuit to detect the second signal when charging is completed at the wireless charging receiver and the processor is in the first operating state.

[0006] In one embodiment, the second detection circuit includes: a timer, used to start timing when the processor enters the first operating state; a driving circuit, used to detect the second signal, and when the second signal is detected and it is determined that the timing duration of the timer is less than or equal to a preset time threshold, drive the output of a first level signal to control the first pin to output the first level state.

[0007] In one implementation, the driving circuit is further configured to reset the timer.

[0008] In one embodiment, the driving circuit is also used to: in response to determining that the timing duration of the timer is greater than the preset time threshold, drive the output of a second level signal to control the first pin to output a second level state, so that the operating state of the processor is switched to a second operating state, and the battery power consumed in the second operating state is greater than or equal to the first power threshold.

[0009] According to a second aspect of the embodiments of the present disclosure, a wireless charging chip is provided, comprising the wireless charging circuit described in the first aspect or any one embodiment of the first aspect.

[0010] According to a third aspect of an embodiment of the present disclosure, there is provided a wireless charging device, including:

[0011] A wireless charging chip, comprising the wireless charging circuit according to the first aspect or any one of the embodiments of the first aspect;

[0012] The application processor enters a first operating state after charging is completed at the wireless charging receiving end, and controls the second pin to output a third level state to control the second detection circuit to detect a second signal, and maintains the operating state as the first operating state when the second detection circuit controls the first pin to output a first level state, and the battery power consumed in the first operating state is less than a first power threshold.

[0013] In one embodiment, the processor is also used to: when the first pin outputs the second level state, switch from the first operating state to the second operating state, and control the second pin to output the fourth level state to control the second detection circuit to suspend detection of the second signal; the battery power consumed in the second operating state is greater than or equal to the first power threshold.

[0014] According to a fourth aspect of the embodiments of the present disclosure, a wireless charging method is provided, which is applied to the wireless charging circuit according to the first aspect or any one of the embodiments of the first aspect. The method includes: detecting a first signal based on a first detection circuit, wherein the first signal is used to request a wireless charging transmitter to charge a wireless charging receiver;

[0015] In response to the battery power of the wireless charging receiving end reaching a preset power threshold, the level state of the second pin is set to a first level state, and a second signal is generated based on the first signal and output to the second detection circuit, and the second signal is used to indicate that the wireless charging transmitting end is in place; based on the second detection circuit, the level state of the first pin is set to the first level state, and the first level state is used to control the operating state of the processor of the wireless charging receiving end to be a first operating state, and the battery power consumed in the first operating state is less than the first power threshold.

[0016] In one embodiment, in response to detection by the second detection circuit, setting the level state of the first pin to the first level state includes: based on a timer and a driving circuit, setting the level state of the first pin to the first level state; the timer is used to start timing when the processor enters the first operating state.

[0017] In one embodiment, the timer and the driving circuit are based on which the level state of the first pin is set to the first level state, including: in response to the driving circuit detecting the second signal and determining that the timing duration of the timer is less than or equal to a preset time threshold, the level state of the first pin is set to the first level state.

[0018] In one embodiment, the method further includes: in response to the driving circuit detecting the second signal and determining that the timing duration of the timer is greater than the preset time threshold, the driving circuit outputs a second level signal; setting the level state of the first pin to the second level state and setting the level state of the second pin to the second level state, so that the operating state of the processor is switched to the second operating state, and the battery power consumed in the second operating state is greater than or equal to the first power threshold.

[0019] In one implementation, the method further includes: resetting the timer based on the second signal.

[0020] According to a fifth aspect of the embodiments of the present disclosure, there is provided a wireless charging device, including:

[0021] a detection unit, configured to detect a first signal based on a first detection circuit, wherein the first signal is used to request the wireless charging transmitter to charge the wireless charging receiver;

[0022] A processing unit is configured to, in response to the battery power of the wireless charging receiving end reaching a preset power threshold, set the level state of the second pin to a first level state, and generate a second signal based on the first signal, and output the second signal to a second detection circuit, wherein the second signal is used to indicate that the wireless charging transmitting end is in place; based on the second detection circuit, set the level state of the first pin to the first level state, and the first level state is used to control the operating state of the processor of the wireless charging receiving end to be a first operating state, and the battery power consumed in the first operating state is less than the first power threshold.

[0023] In one embodiment, the processing unit sets the level state of the first pin to the first level state in response to detection by the second detection circuit in the following manner: based on a timer and a driving circuit, the level state of the first pin is set to the first level state; the timer is used to start timing when the processor enters the first operating state.

[0024] In one embodiment, the processing unit sets the level state of the first pin to the first level state based on the timer and the driving circuit in the following manner: in response to the driving circuit detecting the second signal and determining that the timing duration of the timer is less than or equal to a preset time threshold, the level state of the first pin is set to the first level state.

[0025] In one embodiment, the processing unit is also used to: in response to the driving circuit detecting the second signal and determining that the timing duration of the timer is greater than the preset time threshold, the driving circuit outputs a second level signal; setting the level state of the first pin to the second level state and setting the level state of the second pin to the second level state, so that the operating state of the processor is switched to the second operating state, and the battery power consumed in the second operating state is greater than or equal to the first power threshold.

[0026] In one implementation, the processing unit is further configured to: reset the timer based on the second signal.

[0027] According to a sixth aspect of the embodiments of the present disclosure, there is provided a wireless charging device, including:

[0028] processor;

[0029] a memory for storing processor-executable instructions;

[0030] The processor is configured to: execute the method described in the fourth aspect or any one of the embodiments of the fourth aspect.

[0031] According to a seventh aspect of an embodiment of the present disclosure, a storage medium is provided, in which instructions are stored. When the instructions in the storage medium are executed by a processor of a wireless charging receiving end, the wireless charging receiving end is enabled to execute the method described in the fourth aspect or any one of the embodiments of the fourth aspect.

[0032] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: a low-power detection circuit is used to replace the high-power circuit of the original wireless charging receiving end, thereby reducing battery power consumption after full charging, lowering the charging temperature, and improving the charging efficiency of wireless charging.

[0033] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0035] Figure 1 is a schematic diagram illustrating a communication principle of wireless charging according to an exemplary embodiment.

[0036] Figure 2 is a schematic diagram illustrating a communication process of wireless charging according to an exemplary embodiment.

[0037] Figure 3 FIG. 1 is a timing diagram of a signal of a ping detection according to an exemplary embodiment.

[0038] Figure 4 FIG. 4 is a timing diagram of another signal of a ping detection according to an exemplary embodiment.

[0039] Figure 5 is a schematic diagram showing a wireless charging circuit according to an exemplary embodiment.

[0040] Figure 6 is a working waveform diagram according to an exemplary embodiment.

[0041] Figure 7 is a wireless charging circuit diagram according to an exemplary embodiment.

[0042] Figure 8 The figure is a flow chart showing a wireless charging method according to an exemplary embodiment.

[0043] Figure 9 is a flow chart showing another wireless charging method according to an exemplary embodiment.

[0044] Figure 10 The figure is a flow chart showing a method for controlling a first pin based on a timer and a driving circuit according to an exemplary embodiment.

[0045] Figure 11 The flowchart shows another method for controlling a first pin based on a second signal according to an exemplary embodiment.

[0046] Figure 12 is a schematic diagram of another wireless charging circuit according to an exemplary embodiment.

[0047] Figure 13 is another working waveform diagram shown according to an exemplary embodiment.

[0048] Figure 14 is a flow chart showing another wireless charging method according to an exemplary embodiment.

[0049] Figure 15 The figure is a block diagram of a wireless charging device according to an exemplary embodiment.

[0050] Figure 16 is a block diagram of a wireless charging device according to an exemplary embodiment.

[0051] Figure 17 The figure is a block diagram showing a device for wireless charging method according to an exemplary embodiment. DETAILED DESCRIPTION

[0052] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different drawings represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present disclosure.

[0053] Wireless charging technology refers to contactless power transmission through air, rather than wires, using electromagnetic induction, electromagnetic resonance, radio frequency, microwaves, lasers, and other methods. Compared to traditional wired charging, wireless charging is more convenient because it eliminates the need for wiring and charging terminals.

[0054] In the following embodiments of the present disclosure, wireless charging technology is described using electromagnetic induction technology as an example, but this does not further limit the present disclosure. It should be noted that the wireless charging method of the present disclosure can also be applied to other wireless charging technologies.

[0055] For easier understanding, the communication principle and communication process of wireless charging technology are described in detail below.

[0056] Figure 1 FIG is a schematic diagram illustrating the communication principle of wireless charging according to an exemplary embodiment. Figure 1 As shown in the figure, the wireless charging communication system mainly includes a wireless charging transmitter and a wireless charging receiver. The communication principle of wireless charging is that the wireless charging receiver provides communication information to the wireless charging transmitter through AC load modulation, and the wireless charging transmitter then demodulates the corresponding communication information. For example, see Figure 1, the wireless charging receiving end sends information to the wireless charging transmitting end through the communication module. The communication information may include energy demand packets, received energy packets, received rated power packets, and charging instruction packets. The wireless charging transmitting end receives the information through the communication module, generates system instructions through the control module, and then the wireless charging transmitting end transfers energy to the power receiving module of the wireless charging receiving end through the power conversion module according to the system instructions. The wireless charging receiving end receives the energy signal, performs load modulation through the control module, and transmits the modulation information to the wireless charging transmitting end. The wireless charging transmitting end demodulates the communication signal from the energy signal to complete the subsequent overall system control. Among them, there is a certain connection between the above-mentioned modules to realize the control of the entire wireless charging communication system, which is not explained one by one in the embodiments of this disclosure.

[0057] In various embodiments of the present disclosure, the wireless charging transmitter may also be referred to as a wireless charging pad, and the wireless charging receiver may also be referred to as a mobile terminal. A mobile terminal is a device capable of wireless charging, such as a tablet, a mobile phone, or a portable electronic device such as a watch or headphones. This disclosure does not specifically limit this.

[0058] Figure 2 FIG. 1 is a schematic diagram illustrating a communication process of wireless charging according to an exemplary embodiment. Figure 2As shown, the wireless charging communication process primarily consists of four phases: selection, communication request (ping), identification and configuration, and power transfer. The selection phase primarily detects the presence of a mobile terminal. This detection method can be by periodically transmitting an analog signal at a fixed frequency (analog ping) or by detecting changes in capacitance. Optionally, if the mobile terminal is not detected (i.e., the signal is unresponsive), the process returns to the selection phase. If the mobile terminal is detected, the power signal request is successful, and the communication request phase begins. During the ping phase, the wireless charging pad sends a digital signal (digital ping) with sufficient energy to activate the mobile terminal's communication function. Optionally, if the mobile terminal has completed charging, it sends a stop power transfer packet. Upon receipt of the stop power transfer packet, the wireless charging pad indicates that power transfer has completed and returns to the selection phase. If the mobile terminal requires charging, it must respond with a signal strength indication packet (signal strength response digital signal) within a specified time. Upon receiving the signal strength packet, the wireless charging pad maintains the power signal and enters the identification and configuration phase. In the identification & configuration stage, the wireless charging pad is mainly configured accordingly based on the information parameter package sent by the mobile terminal to determine the final transmission power, as well as the power size during the determination process. Optionally, if the transmission error or timeout fails to establish the power transmission protocol, the system returns to the selection stage. After the configuration is completed, the power transmission protocol has been established and the power transmission stage is entered. In the power transfer stage, the mobile terminal will detect the rectified voltage and current and send an error packet to increase or decrease the transmission power of the wireless charging pad. If the mobile terminal no longer needs power (the battery is fully charged), it will send an end power transfer packet to indicate that the power transfer has been completed and return to the selection stage. It is understandable that if the transmission error or transmission timeout violates the power transmission protocol, the system may also return to the selection stage.

[0059] It should be noted that there are two situations in the ping phase. In one case, the signal detected by ping is as follows: Figure 3 As shown, Figure 3This is a timing diagram of a ping detection signal according to an exemplary embodiment. The wireless charging pad sends a digital ping signal, t1 represents the duration of the digital ping signal. The mobile terminal responds with a signal strength indication packet within a specified time, t2 represents the duration of the signal strength packet. The specified time can be preset, and t2 is less than the specified time, that is, the wireless charging pad receives the signal strength indication packet within the specified time and enters the next stage. In another case, the ping detection signal is as follows: Figure 4 As shown, Figure 4 This is a timing diagram of another ping detection signal according to an exemplary embodiment. The wireless charging pad sends a digital ping signal, where t1 represents the duration of the digital ping signal. If the mobile terminal does not respond to the signal strength indication packet within the specified time, t3 represents the duration of the wait for receiving the signal strength packet until the signal strength packet is terminated. If t3 is greater than or equal to the specified time, that is, if the wireless charging pad does not receive the signal strength indication packet within the specified time, it will not proceed to the next stage and will resend the digital ping signal after a period of time.

[0060] Based on the above, it can be seen that the wireless charging pad periodically sends digital ping signals to charge the mobile terminal. However, it is desirable for the mobile terminal to stop charging after it is fully charged, that is, the mobile terminal does not respond to the digital ping signals from the wireless charging pad, in order to reduce losses in the charging path and the temperature of the mobile device after it is fully charged. It is also desirable to detect the digital ping signals from the wireless charging pad in real time after full charging to determine whether the mobile terminal has been removed from the wireless charging pad, so that charging can resume when the mobile terminal is placed back on the wireless charging pad.

[0061] In a related solution, the mobile terminal detects the digital ping signal sent by the wireless charging pad, and the processor (Application Processor) pulls up the first pin to stop charging after the mobile terminal is fully charged. At the same time, the AP monitors the interrupt signal sent by the mobile terminal on the second pin to determine whether the mobile terminal has been removed from the wireless charging pad.

[0062] In the embodiment of the present disclosure, the AP is a system that monitors the receiving RX chip of the mobile terminal in real time, for example, it can also be a central controller CPU, a micro control unit MCU, etc.

[0063] Figure 5 FIG. 1 is a schematic diagram of a wireless charging circuit according to an exemplary embodiment. Figure 5As shown, the wireless charging circuit includes a wireless charging path, a receiving RX chip (referred to as RX), an AP, and a charger. It should be noted that the wireless charging circuit is applied to a mobile terminal. The left part of the wireless charging path is connected to the transmitting TX chip (referred to as TX) of the wireless charging pad (not shown in the figure), and RX communicates with TX through the wireless charging path. The general charging process is: TX sends charging energy to RX through the wireless charging path, and after RX receives the charging energy, it converts the power through the charger to charge the battery, wherein VSYS is the system power supply voltage. In one embodiment, the wireless charging method adopts the following scheme: when the battery of the mobile terminal is fully charged, the AP pulls up the second pin, and the RX detects that the second pin is pulled high, interrupts the communication connection with TX, and stops wireless charging, wherein the second pin is used to control the RX to enter a low power mode. Since the mobile terminal is still placed on the wireless charging pad at this time, the TX in the wireless charging pad will periodically send a digital ping signal through the wireless charging path to wake up the RX. After being woken up, the RX detects that the second pin is in a high level state, then does not respond to the digital ping signal of TX, and generates an interrupt signal to notify the AP through the first pin that the digital ping signal is detected. The AP determines whether the mobile terminal has been removed from the wireless charging pad based on the time interval between received interrupt signals. If interrupt signals are received continuously (i.e., the timer has not expired), the AP determines that the mobile terminal is always on the wireless charging pad, and the AP maintains the high level of the second pin. If no interrupt signals are received for a long time (i.e., the timer has expired), the AP determines that the mobile terminal has been removed from the wireless charging pad, and releases the second pin so that the mobile terminal can re-enter the wireless charging state when it is placed on the wireless charging pad again.

[0064] The working waveform of the above wireless charging circuit is as follows: Figure 6 As shown, Figure 6 FIG. 1 is a working waveform diagram according to an exemplary embodiment. Figure 6As shown, the operating waveform diagram includes the output voltage, the operating waveforms of the first pin, and the second pin. Δt1 is the time interval for the RX to detect an AC signal, Δt2 is the time interval for the TX to receive an interrupt signal, and Δt3 is the maximum time interval for the TX to wait for an interrupt signal. It should be noted that the AC signal can be a voltage signal. Before charging is complete, the output voltage is constant, the first pin is high, and the second pin is low. At this time, both the RX and the AP are in normal operating mode. When charging is complete, the second pin is pulled high by the AP, the output voltage gradually decreases, and the battery loses power until the next TX energy transfer. If an AC signal is detected within Δt1, the RX sends an interrupt signal, controlling the first pin to a low state. If the TX receives the interrupt signal within Δt2, it detects the first pin as low and maintains the second pin high. This cycle repeats until the RX detects no AC signal within Δt1, and the TX does not receive an interrupt signal within Δt2. The wireless charging pad is considered removed, and the first pin is released, controlling the first pin to a low state.

[0065] It can be seen that in the relevant solutions, although the mobile terminal can disconnect the wireless charging after being fully charged and monitor whether the mobile terminal has been moved from the wireless charging pad, the mobile terminal will be awakened periodically, and the application processor is required to monitor the interrupt signal of the mobile terminal in real time. Therefore, after the mobile terminal is fully charged, there is still a large power consumption current, which consumes battery power and needs to be recharged to replenish the power. Continuous recharging will also cause the mobile terminal and the wireless charging pad to heat up, resulting in low charging efficiency.

[0066] Based on this, the present disclosure provides a wireless charging circuit, which replaces the high-power detection work of the original wireless charging receiving end with a low-power detection work, thereby reducing battery power consumption after full charging, lowering charging temperature, and improving charging efficiency.

[0067] Figure 7 is a wireless charging circuit diagram according to an exemplary embodiment. Figure 7As shown, the wireless charging circuit 100 primarily includes an RX chip 101, an AP 102, a first detection circuit 103, a second detection circuit 104, a first pin 105, and a second pin 106. The first detection circuit 103 is configured to detect a first signal, which is used to request the wireless charging transmitter to charge the wireless charging receiver. Based on the first signal, a second signal is generated, which indicates the presence of the wireless charging transmitter and is output to the second detection circuit. The second detection circuit 104 is configured to control the first pin to output a first electrical level based on the time interval between detections of the second signal. The first pin 105 is configured to output a first electrical level based on control by the second detection circuit to control the processor of the wireless charging receiver to operate in a first operating state. The processor may be an application processor (AP). The battery power consumed in the first operating state is less than a first power threshold. The second pin 106 is configured to control the second detection circuit to detect a second signal when the wireless charging receiver completes charging and the AP is in the first operating state. In this embodiment of the present disclosure, the first signal is used to request the wireless charging transmitter to charge the wireless charging receiver. The battery power consumed in the first operating state is less than the first power threshold. It should be noted that the first power threshold is a negligible power threshold. In other words, consuming the first power threshold is low power consumption, which can ensure that the power of the wireless charging receiving end is still within the preset power threshold.

[0068] In some embodiments, the second detection circuit 104 may include a timer 107 and a driver circuit 108. The timer 107 is configured to start timing when the AP enters the first operating state. The driver circuit 108 is configured to detect a second signal and, upon detecting the second signal and determining that the timer duration is less than or equal to a preset time threshold, drive the output of a first level signal to control the first pin to output a first level state. Specifically, the second detection circuit 104 is configured to set the level state of the first pin to the first level state in response to detecting the second signal and determining that the timer duration is less than or equal to the preset time threshold.

[0069] In some embodiments, the second detection circuit 104 is further configured to reset the timer 107 based on the second signal.

[0070] For ease of understanding, an example is given below. For example, the preset time threshold is set to 0.01ms, and the first level state is set to a high level state. The wireless charging detection circuit in the embodiment of the present disclosure mainly works when the mobile terminal enters the detection mode. If the timer 107 of the second detection circuit 104 detects the second signal within 0.01ms, the level state of the first pin is pulled high, that is, the level state of the first pin is set to a high level state. It should be noted that if the timing duration of the timer 107 is 0.009ms at this time, the timing duration of the timer 107 is reset to 0 based on the pulse signal of the second signal, so that the timer 107 starts timing again. Then, the next time, if the second signal is detected again within 0.01ms, the level state of the first pin is continuously pulled high to a high level state, and so on. Based on this, the AP can maintain the first operating state.

[0071] In some embodiments, the driver circuit 108 in the second detection circuit 104 is further configured to output a second level signal in response to the timing duration of the timer 107 being greater than a preset time threshold, and to control the first pin to output a second level state. The application processor AP is further configured to switch the operating state to a second operating state in response to the level state of the first pin being the second level state, wherein the battery power consumed in the second operating state is greater than or equal to the first power threshold.

[0072] For ease of understanding, the following examples are given. For example, the preset time threshold is set to 0.01ms, and the second level state is set to a low level state. The above has already described the situation where the second signal is detected within the preset time threshold, so it will not be repeated here. In another case, if the timer 107 of the second detection circuit 104 does not detect the second signal within 0.01ms, it means that the mobile terminal has currently been removed from the wireless charging pad, then the level state of the first pin is pulled down, that is, the level state of the first pin is set to a low level state. Furthermore, when the AP detects that the first pin is pulled low, it switches to the second operating state and exits the detection mode. It should be noted that after exiting the detection mode, the detection circuit no longer works, and charging can be carried out normally at this time. Based on this, it is possible to switch back and forth between the normal charging mode and the detection mode based on the second signal to improve the charging efficiency.

[0073] In some optional embodiments, the driving circuit may include a metal oxide semiconductor (MOS) transistor to convert the output high / low signal of the control output module, thereby controlling the high / low level state of the first pin.

[0074] According to the wireless charging circuit provided by the embodiment of the present disclosure, a detection circuit is mainly added to enable both the RX and the AP to be in a low-power working state in the wireless charging system, thereby reducing battery power consumption.

[0075] Based on the same concept, an embodiment of the present disclosure also provides a wireless charging method.

[0076] Figure 8 FIG. 1 is a flow chart showing a wireless charging method according to an exemplary embodiment. Figure 8 As shown, the wireless charging method is used in a wireless charging circuit and includes the following steps.

[0077] In step S11 , a first signal is detected based on a first detection circuit.

[0078] In the embodiment of the present disclosure, the first detection circuit in the wireless charging receiving terminal detects the first signal, which may indicate that the wireless charging receiving terminal is still placed on the wireless charging transmitting terminal. The first signal is used to request the wireless charging transmitting terminal to charge the wireless charging receiving terminal.

[0079] In some embodiments, the first signal may be a signal sent by the wireless charging pad, or a signal converted from a signal sent by the wireless charging pad.

[0080] In some embodiments, the first signal may be an energy signal or a voltage signal, which is not specifically limited in the embodiments of the present disclosure.

[0081] In step S12, in response to the battery power of the wireless charging receiving end reaching a preset power threshold, the level state of the second pin is set to a first level state, and a second signal is generated based on the first signal and output to the second detection circuit.

[0082] The second signal is used to indicate that the wireless charging transmitter is in place. In the embodiment of the present disclosure, when the battery level of the wireless charging receiver reaches a preset power threshold and the wireless charging receiver detects the first signal, the second signal is generated. The second signal is used to indicate that the distance between the wireless charging transmitter and the wireless charging receiver is less than the preset distance threshold.

[0083] In the disclosed embodiment, the preset power threshold can be a fixed charging threshold of the wireless charging receiving end (i.e., the mobile terminal) or a charging threshold set by the user. For example, to protect the battery, the user sets the charging power to a protection power of 80% to maintain the battery life.

[0084] In the embodiment of the present disclosure, the first detection circuit may send the first signal to the second detection circuit. The first signal sent by the first detection circuit may be an energy signal or a voltage signal, which is not specifically limited in the embodiment of the present disclosure.

[0085] In some embodiments, the preset power threshold may be 100%, i.e., the battery level of the wireless charging receiving end is fully charged. Alternatively, the preset power threshold may be 80%, i.e., the battery level of the wireless charging receiving end is at a preset maximum power level. This is not specifically limited in the embodiments of the present disclosure.

[0086] In some embodiments, the distance between the wireless charging transmitter and the wireless charging receiver being less than the preset distance threshold can occur when the mobile terminal is placed on the wireless charging pad or when the mobile terminal is in close proximity to the wireless charging pad. Specifically, the mobile terminal can be located at the center of the wireless charging pad and the distance between the mobile terminal and the wireless charging pad can be less than the maximum distance at which the mobile terminal and the wireless charging pad can communicate.

[0087] In step S13 , based on the second detection circuit, the level state of the first pin is set to a first level state.

[0088] In the embodiment of the present disclosure, the first level state is used to control the operation state of the AP to be a first operation state, wherein the battery power consumed in the first operation state is less than a first power threshold.

[0089] In some embodiments, the first level state is a high level state. Based on the second signal, if it is the first time to set, the level state of the first pin is switched from a low level state to a high level state, and if it is not the first time to set, the level state of the first pin is kept at a high level state.

[0090] In some embodiments, the first operating state may be an operating state in a low-power mode. The AP is in low-power mode, which is equivalent to an inoperative state. Alternatively, the first operating state may be an operating state in which the pin is not monitored, i.e., the wireless circuit control system does not monitor the pin, but the AP can still operate normally when other operations of the mobile terminal require it.

[0091] In some embodiments, the first power threshold is negligible with respect to the battery power, for example, the first power threshold may be 0.001%.

[0092] According to the embodiments of the present disclosure, power consumption can be reduced, thereby reducing battery consumption of a mobile terminal and improving wireless charging efficiency of the mobile terminal.

[0093] In the embodiment of the present disclosure, the level state of the first pin is mainly controlled based on the second signal and the timer.

[0094] Figure 9 is a flow chart showing another wireless charging method according to an exemplary embodiment. Figure 9 As shown, the method includes the following steps.

[0095] In step S21 , a first signal is detected based on a first detection circuit.

[0096] In step S22, in response to the battery power of the wireless charging receiving end reaching a preset power threshold, the level state of the second pin is set to a first level state, and a second signal is generated based on the first signal and output to the second detection circuit.

[0097] The implementation of the above step S21 is similar to that of step S11, and the implementation of the above step S22 is similar to that of step S12. For the specific implementation, please refer to the above embodiment and will not be described in detail here.

[0098] In step S23 , based on the timer and the driving circuit, the level state of the first pin is set to a first level state.

[0099] In the embodiment of the present disclosure, the level state of the first pin is set based on the state of the timer and the driving circuit, wherein the first level state is used to control the operation state of the AP to be the first operation state.

[0100] In some embodiments, the state of the timer includes a timed-out state and a non-timed-out state.

[0101] In some embodiments, if the timer is in the non-timeout state, the level state of the first pin is set to the first level state according to whether the driving circuit detects the second signal.

[0102] Figure 10 FIG. 1 is a flow chart showing a method for controlling a first pin based on a timer and a driving circuit according to an exemplary embodiment. Figure 10 As shown, the method includes the following steps.

[0103] In step S31 , based on a timer and a driving circuit, the level state of the first pin is set to a first level state.

[0104] In step S32 , in response to the driving circuit detecting the second signal and determining that the timing duration of the timer is less than or equal to the preset time threshold, the level state of the first pin is set to the first level state.

[0105] In the embodiments of the present disclosure, a state in which the timer duration is less than or equal to a preset time threshold is referred to as a non-timeout state. The preset time threshold may be a predetermined fixed duration for detecting the second signal. For example, it may be t1, t2 greater than t1, or t3 less than t1, which is not limited in the embodiments of the present disclosure.

[0106] According to an embodiment of the present disclosure, based on the second signal and the timer, the first level state of the first pin can be controlled, and then the first operating state of the AP can be controlled according to the first level state of the first pin to reduce battery consumption.

[0107] In some embodiments, the timer may be reset based on the second signal.

[0108] In an embodiment of the present disclosure, if a second signal is detected when the timer has not timed out, the timer is reset based on the second signal so that the timer starts timing again.

[0109] In some embodiments, the second signal is detected, the timer is reset, and the first pin is kept in a high level state.

[0110] According to an embodiment of the present disclosure, based on the second signal, the timer is reset to maintain the high level state of the first pin, that is, to maintain the first operating state of the AP, maintain low power consumption operation, and reduce battery power consumption.

[0111] In some embodiments, if the state of the timer is a timeout state, the level state of the first pin is set.

[0112] Figure 11 is a flow chart showing another method for controlling a first pin based on a timer and a driving circuit according to an exemplary embodiment. Figure 11 As shown, the method includes the following steps.

[0113] In step S41 , in response to the driving circuit detecting the second signal and determining that the timing duration of the timer is greater than a preset time threshold, the driving circuit outputs a second level signal.

[0114] In step S42 , the level state of the first pin is set to the second level state and the level state of the second pin is set to the second level state, so that the operation state of the application processor AP is switched to the second operation state.

[0115] The battery power consumed in the second operating state is greater than or equal to the first power threshold.

[0116] In some embodiments, the second level state is a low level state. The level state of the first pin is switched from a high level state to a low level state.

[0117] In some embodiments, the second operating state may be a high-power mode. In high-power mode, the AP can operate normally to achieve the tasks required for normal charging. Because the AP needs to perform a large number of tasks in the second operating state, the power consumption in the second operating state is greater than that in the first operating state, and thus the battery power consumed in the second operating state is greater than the battery power consumed in the first operating state.

[0118] In some embodiments, the battery power consumed in the second operating state is much greater than the first power threshold. For example, the battery power consumed in the second operating state may be 1%.

[0119] It should be noted that when the battery power is depleted by 1%, reaching the recharge threshold, recharging is required to fully charge the AP. If the AP remains in the second operating state, the battery power will be depleted by another 1% over time, requiring further recharging. Repeated recharging will increase the charging temperature and reduce charging efficiency.

[0120] In some embodiments, the power level of the first pin may be set to the second power level in response to the battery level of the wireless charging receiving terminal being less than a preset power threshold. For example, when a mobile terminal is placed on a wireless charging pad and battery power consumption reaches a certain value over a long period of time, requiring recharging, the power level of the first pin may be controlled to the second power level to place the AP in the second operating state, enabling normal charging.

[0121] According to an embodiment of the present disclosure, when the battery is fully charged, the AP is controlled to operate in the first operating state. When the mobile terminal is removed from the wireless charging pad, the AP is controlled to operate in the second operating state so that the mobile terminal can re-enter the charging state when it is placed again.

[0122] In the embodiment of the present disclosure, the first level state of the first pin can be set based on the second signal, or can be set based on the wireless charging receiving end meeting certain conditions.

[0123] In the embodiment of the present disclosure, the timer may be reset based on the second signal.

[0124] In an embodiment of the present disclosure, if a second signal is detected when the timer has not timed out, the timer is reset based on the second signal so that the timer starts timing again.

[0125] In some embodiments, the second signal is detected, the timer is reset, and the first pin is kept in a high level state.

[0126] According to an embodiment of the present disclosure, based on the second signal, the timer is reset to maintain the high level state of the first pin, that is, to maintain the first operating state of the AP, maintain low power consumption operation, and reduce battery power consumption.

[0127] In some embodiments, if the state of the timer is a timeout state, the level state of the first pin is set.

[0128] In the embodiment of the present disclosure, when the first pin is set to the first level state, the timer is reset based on the second signal.

[0129] According to the embodiment of the present disclosure, the level state of the first pin can be controlled in a timely manner so that the AP can operate in the first operating state in a timely manner, further reducing battery power consumption.

[0130] The embodiment of the present disclosure will now specifically describe the overall control process of the wireless charging method with reference to the accompanying drawings.

[0131] For ease of understanding, combined Figure 12 and Figure 13 ,as well as Figure 14 , for specific instructions.

[0132] Figure 12 FIG is a schematic diagram of another wireless charging circuit according to an exemplary embodiment. Figure 14 As shown, the wireless charging circuit may further include a wireless charging path and a charger, wherein the first detection circuit may be a first detection module, and the second detection circuit may be a second detection module. It should be noted that in the embodiment of the present disclosure, the first detection module is used to detect the first signal, the second detection module is used to detect the second signal, the charger is used to convert the power supply voltage, and the AP is used to monitor the signal in RX. In some embodiments, the second detection module further includes a T module and a Q module. It should be noted that the T module is a timer, the Q module is a drive control module, VRECT is the output voltage, VOUT is the charging voltage, and VSYS is the system power supply voltage.

[0133] Figure 13 This is another operating waveform diagram according to an exemplary embodiment, which mainly reflects the operating waveform changes of the output voltage, the first signal, the second signal, the first pin, and the second pin.

[0134] Figure 14 FIG. 1 is a flow chart showing another wireless charging method according to an exemplary embodiment. Figure 14 As shown, the wireless charging method includes the following steps.

[0135] Step S71, charging is completed. In the embodiment of the present disclosure, charging completion means that the battery power of the mobile terminal reaches the preset power threshold, and RX no longer responds to the first signal sent by TX. Figure 13Before charging is completed, the output voltage is constant, the first signal is continuously detected, but the first signal is not generated, and the first pin and the second pin are both in a low level state. Step S72: The AP pulls up the second pin, and the mobile terminal enters the detection mode, wherein the second pin can be used to control the working mode of RX to be a low power mode. In one embodiment, RX detects that the second pin is pulled high, and executes step S73: RX sends a stop charging signal. The charging plate detects the stop charging signal sent by RX, stops charging the mobile terminal, and jumps to step S74: battery power down. After a time interval Δt, since the mobile terminal is placed on the wireless charging plate, the wireless charging plate will periodically send digital signal energy to the mobile terminal through the wireless charging path to charge the battery, that is, execute step S75: digital signal energy charges the battery. Step S76: RX does not respond to the digital signal of TX. Since it will not respond to the digital signal of TX, step S74 is repeated: battery power down. In the embodiment of the present disclosure, steps S75 to S74 can be repeatedly executed to send the first signal. Among them, it should be noted that, due to the introduction of the first detection module, the digital signal does not wake up RX, but provides the first signal to the first detection module. Step S77: The first signal is detected, that is, the first detection module detects the first signal, and executes step S78: generates a second signal and sends it to the second detection module. In one embodiment, RX detects that the second pin is pulled high, and executes step S79. Step S79, the second detection module is enabled. In the embodiment of the present disclosure, the AP provides an enable signal to the second detection module through the second pin to enable the second detection module to operate normally. Step S80, the timer starts timing. The timer of the second module starts timing when the second module is running, and the step then responds to step S78 and step S81, and executes step S82 or step S83. Step S81, determines whether the timer has timed out. If the timer has timed out and the second signal in step S78 is detected, step S82 is executed: reset the timer. In the embodiment of the present disclosure, if the timer has not timed out, step S83 is executed: the drive module output is high. The status of the first signal and the second signal is as follows: Figure 13 In response to executing step S83, since the output of the driving module is high and the timer times out, the switching switch of the driving module will be turned on, thereby controlling the level state of the first pin to be low, as shown in step S84: the first pin generates a falling edge interrupt to wake up the AP. In step S85, the AP pulls down the second pin, and the mobile terminal exits the detection mode, wherein the level states of the first pin and the second pin are as shown in Figure 13As shown. Step S86, detection is completed. In the embodiment of the present disclosure, steps S73 to S78 can be executed first, and then steps S79 to S81 can be executed. Steps S79 to S81 can also be executed first, and then steps S73 to S78, or steps S73 to S78 and steps S79 to S81 can be executed simultaneously. If step S83 is not executed, the mobile terminal remains in the detection mode.

[0136] According to the embodiment of the present disclosure, the positional relationship between the mobile terminal and the wireless charging pad can be determined based on the second signal and the timer, and then a decision can be made whether to continue detection in the low power consumption mode or switch to the normal working mode so that the wireless charging pad can continue to charge the mobile terminal, thereby reducing the number of recharging times and improving charging efficiency.

[0137] Based on the same concept, the embodiments of the present disclosure also provide a wireless charging chip, device, and apparatus.

[0138] It is understandable that the wireless charging device and apparatus provided by the embodiments of the present disclosure include hardware structures and / or software modules corresponding to the execution of each function in order to realize the above functions. In combination with the units and algorithm steps of the various examples disclosed in the embodiments of the present disclosure, the embodiments of the present disclosure 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, but such implementation should not be considered to exceed the scope of the technical solution of the embodiments of the present disclosure.

[0139] Figure 15 FIG. 2 is a block diagram of a wireless charging device 200 according to an exemplary embodiment. Figure 15 The device 200 includes a wireless charging chip 201 and an application processor 202 .

[0140] A wireless charging chip includes the above-mentioned wireless charging circuit.

[0141] An application processor is configured to enter a first operating state upon completion of charging at a wireless charging receiving end, and control the second pin to output a third electrical level state to control the second detection circuit to detect a second signal; and maintain the operating state as the first operating state when the second detection circuit controls the first pin to output a first electrical level state, wherein the battery power consumed in the first operating state is less than a first power threshold. Figure 16 FIG. 3 is a block diagram of a wireless charging device 300 according to an exemplary embodiment. Figure 16 The device 300 includes a detection unit 301 and a processing unit 302.

[0142] A detection unit 301 is configured to detect a first signal based on a first detection circuit, wherein the first signal is used to request the wireless charging transmitter to charge the wireless charging receiver;

[0143] The processing unit 302 is used to set the level state of the second pin to the first level state in response to the battery power of the wireless charging receiving end reaching a preset power threshold, and generate a second signal based on the first signal and output it to the second detection circuit, where the second signal is used to indicate that the wireless charging transmitting end is in place; based on the second detection circuit, the level state of the first pin is set to the first level state, and the first level state is used to control the operating state of the processor of the wireless charging receiving end to be the first operating state, and the battery power consumed in the first operating state is less than the first power threshold.

[0144] In one embodiment, the processing unit 302 sets the level state of the first pin to the first level state in response to the detection of the second detection circuit in the following manner: based on a timer and a driving circuit, the level state of the first pin is set to the first level state; the timer is used to start timing when the AP enters the first operating state.

[0145] In one embodiment, the processing unit 302 sets the level state of the first pin to the first level state based on the timer and the driving circuit in the following manner: in response to the driving circuit detecting the second signal and determining that the timing duration of the timer is less than or equal to a preset time threshold, the level state of the first pin is set to the first level state.

[0146] In one embodiment, the processing unit 302 is further used to: in response to the driving circuit detecting a second signal and determining that the timing duration of the timer is greater than a preset time threshold, the driving circuit outputs a second level signal; setting the level state of the first pin to the second level state and setting the level state of the second pin to the second level state, so that the operating state of the processor is switched to the second operating state, and the battery power consumed in the second operating state is greater than or equal to the first power threshold.

[0147] In one implementation, the processing unit is further configured to: reset the timer based on the second signal.

[0148] Regarding the apparatus in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0149] Figure 17 FIG4 is a block diagram of an apparatus 400 for a wireless charging method according to an exemplary embodiment. For example, the apparatus 400 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0150] Reference Figure 17 , apparatus 400 may include one or more of the following components: a processing component 402 , a memory 404 , a power component 406 , a multimedia component 408 , an audio component 410 , an input / output (I / O) interface 412 , a sensor component 414 , and a communication component 416 .

[0151] Processing component 402 generally controls the overall operation of device 400, such as operations associated with display, phone calls, data communications, camera operation, and recording operations. Processing component 402 may include one or more processors 420 to execute instructions to perform all or part of the steps of the above-described method. In addition, processing component 402 may include one or more modules to facilitate interaction between processing component 402 and other components. For example, processing component 402 may include a multimedia module to facilitate interaction between multimedia component 408 and processing component 402.

[0152] The memory 404 is configured to store various types of data to support operations on the device 400. Examples of such data include instructions for any application or method operating on the device 400, contact data, phone book data, messages, pictures, videos, etc. The memory 404 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0153] Power component 406 provides power to the various components of device 400. Power component 406 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 400.

[0154] The multimedia component 408 includes a screen that provides an output interface between the device 400 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 408 includes a front camera and / or a rear camera. When the device 400 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0155] The audio component 410 is configured to output and / or input audio signals. For example, the audio component 410 includes a microphone (MIC) that is configured to receive external audio signals when the device 400 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 404 or transmitted via the communication component 416. In some embodiments, the audio component 410 also includes a speaker for outputting audio signals.

[0156] I / O interface 412 provides an interface between processing component 402 and peripheral interface modules, such as a keyboard, click wheel, buttons, etc. These buttons may include but are not limited to: a home button, volume buttons, a start button, and a lock button.

[0157] The sensor assembly 414 includes one or more sensors for providing various aspects of the status assessment of the device 400. For example, the sensor assembly 414 can detect the open / closed state of the device 400, the relative positioning of components, such as the display and keypad of the device 400. The sensor assembly 414 can also detect changes in the position of the device 400 or a component of the device 400, the presence or absence of user contact with the device 400, the orientation or acceleration / deceleration of the device 400, and temperature changes of the device 400. The sensor assembly 414 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 414 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 414 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0158] The communication component 416 is configured to facilitate wired or wireless communication between the device 400 and other devices. The device 400 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 416 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 416 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0159] In an exemplary embodiment, the apparatus 400 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above-described method.

[0160] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 404 including instructions, which can be executed by the processor 420 of the apparatus 400 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0161] It is understood that in this disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of related 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. The character " / " generally indicates that the related objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0162] It will be further understood that the terms "first," "second," and the like are used to describe various types of information, but such information should not be limited to these terms. These terms are used solely to distinguish information of the same type from one another and do not indicate a particular order or level of importance. In fact, the terms "first," "second," and the like are fully interchangeable. For example, first information could be referred to as second information, and similarly, second information could be referred to as first information without departing from the scope of this disclosure.

[0163] It is further understood that, unless otherwise specified, “connection” includes a direct connection where there are no other components between the two elements, and also includes an indirect connection where there are other elements between the two elements.

[0164] It is further understood that although operations are described in a particular order in the drawings in the embodiments of the present disclosure, this should not be construed as requiring that the operations be performed in the particular order shown or in a serial order, or that all of the operations shown be performed to obtain the desired results. In certain circumstances, multitasking and parallel processing may be advantageous.

[0165] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein.

[0166] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the scope of the appended claims.

Claims

1. A wireless charging circuit, characterized in that: include: a first detection circuit, configured to detect a first signal, wherein the first signal is used to request the wireless charging transmitter to charge the wireless charging receiver; Generate a second signal based on the first signal, where the second signal is used to indicate that the wireless charging transmitter is in place, and output the second signal to a second detection circuit; a second detection circuit, configured to control the first pin to output a first level state based on a time interval of detecting the second signal; a first pin, configured to output a first electrical level state based on control of the second detection circuit, so as to control the operating state of the processor of the wireless charging receiving end to be a first operating state, wherein the battery power consumed in the first operating state is less than a first power threshold; The second pin is used to control the second detection circuit to detect the second signal when charging is completed at the wireless charging receiving end and the processor is in the first operating state.

2. The circuit according to claim 1, wherein: The second detection circuit includes: a timer, configured to start timing when the processor enters a first operating state; The driving circuit is used to detect the second signal, and when the second signal is detected and it is determined that the timing duration of the timer is less than or equal to a preset time threshold, drive the output of the first level signal to control the first pin to output the first level state.

3. The circuit according to claim 2, characterized in that The driving circuit is further configured to reset the timer.

4. The circuit according to claim 2, characterized in that The driving circuit is further configured to: In response to determining that the timing duration of the timer is greater than the preset time threshold, a second level signal is driven to output to control the first pin to output a second level state, so that the operating state of the processor is switched to a second operating state, and the battery power consumed in the second operating state is greater than or equal to the first power threshold.

5. A wireless charging chip, characterized in that: The wireless charging circuit comprises the wireless charging circuit according to any one of claims 1 to 4.

6. A wireless charging device, characterized in that: include: A wireless charging chip, comprising the wireless charging circuit according to any one of claims 1 to 4; The application processor enters a first operating state after charging is completed at the wireless charging receiving end, and controls the second pin to output a third level state to control the second detection circuit to detect a second signal, and maintains the operating state as the first operating state when the second detection circuit controls the first pin to output a first level state, and the battery power consumed in the first operating state is less than a first power threshold.

7. The wireless charging device according to claim 6, wherein: The processor is further configured to: When the first pin outputs the second level state, the first operating state is switched to the second operating state, and the second pin is controlled to output the fourth level state, so as to control the second detection circuit to suspend detection of the second signal; The battery power consumed in the second operating state is greater than or equal to the first power threshold.

8. A wireless charging method, characterized in that: The wireless charging circuit according to any one of claims 1 to 4, wherein the method comprises: detecting a first signal based on the first detection circuit, wherein the first signal is used to request the wireless charging transmitter to charge the wireless charging receiver; In response to the battery power of the wireless charging receiving end reaching a preset power threshold, the level state of the second pin is set to a first level state, and a second signal is generated based on the first signal and output to the second detection circuit, wherein the second signal is used to indicate that the wireless charging transmitting end is in place; Based on the second detection circuit, the level state of the first pin is set to a first level state, and the first level state is used to control the operating state of the processor of the wireless charging receiving end to be a first operating state, and the battery power consumed in the first operating state is less than a first power threshold.

9. The method according to claim 8, characterized in that The step of setting the level of the first pin to the first level state in response to detection by the second detection circuit comprises: Based on a timer and a driving circuit, the level state of the first pin is set to the first level state; the timer is used to start timing when the processor enters the first operating state.

10. The method according to claim 9, characterized in that The step of setting the level state of the first pin to the first level state based on the timer and the driving circuit includes: In response to the driving circuit detecting the second signal and determining that the timing duration of the timer is less than or equal to a preset time threshold, the level state of the first pin is set to the first level state.

11. The method according to claim 9, characterized in that The method further comprises: In response to the driving circuit detecting the second signal and determining that the timing duration of the timer is greater than the preset time threshold, the driving circuit outputs a second level signal; The level state of the first pin is set to the second level state and the level state of the second pin is set to the second level state, so that the operating state of the processor is switched to the second operating state, and the battery power consumed in the second operating state is greater than or equal to the first power threshold.

12. The method according to claim 8, characterized in that The method further comprises: The timer is reset based on the second signal.

13. A wireless charging device, characterized in that: include: a detection unit, configured to detect a first signal based on a first detection circuit, wherein the first signal is used to request the wireless charging transmitter to charge the wireless charging receiver; A processing unit is configured to, in response to the battery power of the wireless charging receiving end reaching a preset power threshold, set the level state of the second pin to a first level state, and generate a second signal based on the first signal, and output the second signal to a second detection circuit, wherein the second signal is used to indicate that the wireless charging transmitting end is in place; based on the second detection circuit, set the level state of the first pin to the first level state, and the first level state is used to control the operating state of the processor of the wireless charging receiving end to be a first operating state, and the battery power consumed in the first operating state is less than the first power threshold.

14. An electronic device, characterized in that: include: processor; a memory for storing processor-executable instructions; The processor is configured to execute the method according to any one of claims 8 to 12.

15. A storage medium, characterized in that: The storage medium stores instructions. When the instructions in the storage medium are executed by the processor of the wireless charging receiving end, the wireless charging receiving end is enabled to execute the method according to any one of claims 8 to 12.

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