Charging circuit, charging chip and charging equipment

Abstract

The invention relates to a charging circuit, a charging chip and charging equipment, and the charging circuit comprises a wireless charging circuit which is coupled with a charging coil; the charging control circuit is coupled with the wireless charging circuit, the charging control circuit is coupled with the wired charging circuit, and the charging control circuit is used for controlling the wireless charging circuit to carry out wireless charging on the electronic equipment through the charging coil or controlling the wired charging circuit to carry out wired charging on the electronic equipment. The charging circuit can directly perform wireless charging on the electronic equipment through the charging coil, and charging protocol communication does not need to be performed in the wireless charging process, so that the complexity of charging control is reduced. Meanwhile, the charging circuit can perform wired charging and wireless charging on the electronic equipment, so that the requirements of different users can be met, and the universality of the charging circuit is improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of charging, and in particular, to a charging circuit, a charging chip and a charging device. BACKGROUND

[0002] At present, with the development of charging technology, electronic devices can be charged through wired charging or wireless charging to meet the needs of different users. However, in the process of wirelessly charging electronic devices, there is a problem of complex charging control. SUMMARY

[0003] To overcome the problems in the related art, the present disclosure provides a charging circuit, a charging chip and a charging device.

[0004] According to a first aspect of the present disclosure, a charging circuit is provided, comprising:

[0005] a wireless charging circuit coupled with a charging coil;

[0006] a charging control circuit coupled with the wireless charging circuit and coupled with a wired charging circuit, the charging control circuit being configured to control the wireless charging circuit to wirelessly charge an electronic device through the charging coil or control the wired charging circuit to charge the electronic device through wired charging.

[0007] In some embodiments of the present disclosure, the wireless charging circuit comprises:

[0008] an inverter circuit coupled with the charging coil, the inverter circuit being configured to wirelessly charge the electronic device through the charging coil.

[0009] In some embodiments of the present disclosure, the inverter circuit comprises:

[0010] a half-bridge circuit coupled with the charging coil.

[0011] In some embodiments of the present disclosure, the charging control circuit comprises:

[0012] a driving circuit coupled with the wireless charging circuit and / or the wired charging circuit, the driving circuit being configured to drive the wireless charging circuit and / or the wired charging circuit to operate.

[0013] In some embodiments of the present disclosure, the charging control circuit comprises:

[0014] an identification circuit coupled with a charging interface, the identification circuit being configured to identify a charging mode of the electronic device through the charging interface.

[0015] In some embodiments of the disclosure, the charging control circuit comprises:

[0016] a wired charging control circuit coupled with the wired charging circuit, the wired charging control circuit configured to detect and control the wired charging circuit;

[0017] a wireless charging control circuit coupled with the wireless charging circuit, the wireless charging control circuit configured to detect and control the wireless charging circuit.

[0018] In some embodiments of the disclosure, the wired charging control circuit comprises:

[0019] a compensation circuit coupled with the wired charging circuit, the compensation circuit configured to compensate the wired charging circuit in a loop.

[0020] In some embodiments of the disclosure, the wired charging control circuit comprises:

[0021] a feedback circuit coupled with the wired charging circuit, the feedback circuit configured to feedback a voltage output by the wired charging circuit.

[0022] In some embodiments of the disclosure, the wired charging control circuit comprises:

[0023] a wired charging protection circuit coupled with the wired charging circuit, the wired charging protection circuit configured to protect the wired charging circuit.

[0024] In some embodiments of the disclosure, the wireless charging control circuit comprises:

[0025] a demodulation circuit coupled with the charging coil, the demodulation circuit configured to demodulate a signal in the charging coil.

[0026] In some embodiments of the disclosure, the wireless charging control circuit comprises:

[0027] a measurement circuit coupled with the charging coil, the measurement circuit configured to measure a quality factor and / or a charging frequency of the charging coil.

[0028] In some embodiments of the disclosure, the wireless charging control circuit comprises:

[0029] a wireless charging protection circuit coupled with the wireless charging circuit, the wireless charging protection circuit configured to protect the wireless charging circuit.

[0030] In some embodiments of the present disclosure, the charging control circuit comprises:

[0031] a charging protocol circuit coupled with the charging interface, the charging protocol circuit configured to perform charging protocol communication with the electronic device through the charging interface.

[0032] In some embodiments of the present disclosure, the charging control circuit comprises:

[0033] a current detection circuit coupled with the wired charging circuit, the current detection circuit configured to detect a current output by the wired charging circuit; and / or,

[0034] an input voltage detection circuit coupled with the power supply, the input voltage detection circuit configured to detect a voltage input by the power supply; and / or,

[0035] an output voltage detection circuit coupled with the wired charging circuit, the output voltage detection circuit configured to detect a voltage output by the wired charging circuit.

[0036] In some embodiments of the present disclosure, the charging control circuit further comprises:

[0037] a processing unit coupled with the drive circuit, the identification circuit, the compensation circuit, the feedback circuit, the wired charging protection circuit, the demodulation circuit, the measurement circuit, the wireless charging protection circuit, the charging protocol circuit, the current detection circuit, the input voltage detection circuit, and / or the output voltage detection circuit in the charging control circuit.

[0038] According to a second aspect of the present disclosure, there is provided a charging chip comprising the charging circuit as described above.

[0039] According to a third aspect of the present disclosure, there is provided a charging device comprising the charging circuit as described above, or the charging chip as described above.

[0040] The technical solutions provided by the embodiments of the present disclosure can have the following beneficial effects:

[0041] The charging circuit includes a wireless charging circuit and a charging control circuit. The wireless charging circuit is coupled to the charging coil, and the charging control circuit is coupled to both the wireless charging circuit and the wired charging circuit. During the charging process of the electronic device, the charging control circuit can control the wireless charging circuit to wirelessly charge the electronic device through the charging coil, and can also control the wired charging circuit to wiredly charge the electronic device. Since the charging circuit can directly wirelessly charge the electronic device through the charging coil, there is no need to perform charging protocol communication during the wireless charging process, thereby reducing the complexity of charging control. At the same time, since the charging circuit can perform both wired and wireless charging of the electronic device, it can meet the needs of different users, thereby improving the versatility of the charging circuit. Moreover, since the wireless charging circuit and the charging control circuit are integrated into one charging circuit, the charging circuit can realize both wired charging and wireless charging functions, thereby improving the functionality of the charging circuit.

[0042] 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

[0043] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0044] Figure 1 is a structural diagram of a charging circuit provided by an exemplary embodiment of the present disclosure;

[0045] Figure 2 is a structural diagram of a charging circuit provided by another exemplary embodiment of the present disclosure;

[0046] Figure 3 is a structural diagram of a charging circuit provided by another exemplary embodiment of the present disclosure;

[0047] Figure 4 is a structural diagram of a charging circuit provided by another exemplary embodiment of the present disclosure;

[0048] Figure 5 is a structural diagram of a charging circuit provided by another exemplary embodiment of the present disclosure;

[0049] Figure 6 is a structural diagram of a charging circuit provided by another exemplary embodiment of the present disclosure;

[0050] Figure 7 is a structural diagram of a charging circuit provided by another exemplary embodiment of the present disclosure;

[0051] Figure 8-1 is a schematic diagram of an application scenario of a charging device provided by an exemplary embodiment of the present disclosure;

[0052] Figure 8-2 is a schematic diagram of an application scenario of a charging device provided by another example embodiment of the present disclosure.

[0053] Figure 9 is a system block diagram of an electronic device provided by an example embodiment of the present disclosure.

[0054] In the drawings:

[0055] 1 - charging circuit; 10 - wireless charging circuit; 11 - half-bridge circuit; 20 - charging control circuit; 21 - driving circuit; 22 - identification circuit; 23 - wired charging control circuit; 24 - wireless charging control circuit; 25 - charging protocol circuit; 26 - current detection circuit; 27 - input voltage detection circuit; 28 - output voltage detection circuit; 29 - processing unit; 30 - charging coil; 40 - wired charging circuit; 50 - charging interface; 60 - power supply; 70 - charging device; 80 - data line; 231 - compensation circuit; 232 - feedback circuit; 233 - wired charging protection circuit; 241 - demodulation circuit; 242 - measurement circuit; 243 - wireless charging protection circuit; 400 - electronic device; 402 - processing component; 404 - memory; 406 - power supply component; 408 - multimedia component; 410 - audio component; 412 - input / output interface; 414 - sensor component; 416 - communication component; 420 - processor. DETAILED DESCRIPTION

[0056] The example embodiments will be described in detail herein with reference to the accompanying drawings. In the following description, unless otherwise indicated, like numbers in the different drawings represent the same or similar elements. The following example embodiments described in the detailed description are not meant to be an all-inclusive description of all aspects of the application. Rather, they are merely example devices and methods consistent with some aspects of the application as detailed in the appended claims. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0057] Currently, with the development of charging technology, electronic devices can be charged through wired charging or wireless charging to meet the needs of different users. In the process of charging the electronic device through the wired charging mode, the wired charging device is connected with the electronic device through the data line to charge the electronic device through the wired charging mode. In the process of charging the electronic device through the wireless charging mode, the wired charging device is connected with the wireless charging device through the data line, and the wireless charging device charges the electronic device placed on the wireless charging device through the internal charging coil. In the process of wireless charging of the electronic device, the wireless charging control circuit in the wireless charging device needs to communicate with the wired charging control circuit in the wired charging device for charging protocol, resulting in high complexity of charging control. At the same time, since the wired charging circuit and the wired charging control circuit and the wireless charging circuit and the wireless charging control circuit are located in two charging devices, in the case of unstable data line, there is a problem of unreliable wireless charging. Moreover, since the user needs to purchase a wireless charging device when performing wireless charging, the wired charging function and the wireless charging function cannot be realized through the wired charging device, resulting in poor versatility of the charging circuit.

[0058] Based on this, the present disclosure provides a charging circuit, which can wirelessly charge the electronic device through the charging coil without communication of the charging protocol, thereby reducing the complexity of charging control. At the same time, since the charging circuit is coupled with the wired charging circuit, the wired charging circuit, the wireless charging circuit and the charging control circuit can be arranged in one charging device, thereby improving the reliability of wireless charging. Moreover, since the user only needs to externally connect the charging coil when performing wireless charging, the wireless charging function can be realized through the charging circuit, thereby improving the versatility of the charging circuit.

[0059] An example embodiment of the present disclosure provides a charging circuit, as shown in Figure 1 The charging circuit 1 includes a wireless charging circuit 10 and a charging control circuit 20. The wireless charging circuit 10 is coupled with the charging coil 30. The charging control circuit 20 is coupled with the wireless charging circuit 10 and coupled with the wired charging circuit 40, for controlling the wireless charging circuit 10 to wirelessly charge the electronic device through the charging coil 30 or controlling the wired charging circuit 40 to charge the electronic device through the wired charging mode.

[0060] In this embodiment, the charging circuit includes a wireless charging circuit and a charging control circuit. The wireless charging circuit is coupled with the charging coil, and the charging control circuit is coupled with the wireless charging circuit and the wired charging circuit. During the charging process of the electronic device, the charging control circuit can control the wireless charging circuit to wirelessly charge the electronic device through the charging coil, or control the wired charging circuit to wirelessly charge the electronic device. Since the charging circuit can directly wirelessly charge the electronic device through the charging coil, it is not necessary to perform charging protocol communication during the wireless charging process, thereby reducing the complexity of charging control. At the same time, since the charging circuit can wirelessly charge and wirelessly charge the electronic device, it can meet the needs of different users, thereby improving the versatility of the charging circuit. Moreover, since the wireless charging circuit and the charging control circuit are integrated in one charging circuit, the charging circuit can realize the functions of wired charging and wireless charging, thereby improving the functionality of the charging circuit.

[0061] Exemplarily, the input end of the wireless charging circuit 10 can be coupled with the output end of the power supply of the charging circuit 1 or the output end of the wired charging circuit 40, and the output end can be coupled with the charging coil 30. In the case that the input end of the wireless charging circuit 10 is coupled with the output end of the wired charging circuit 40, the voltage output to the charging coil 30 can be changed by controlling the wireless charging circuit 10 through the charging control circuit 20, or the voltage output to the charging coil 30 can be changed by controlling the wired charging circuit 40 through the charging control circuit 20.

[0062] Exemplarily, the wireless charging circuit 10 can be coupled with the charging coil 30 through the charging interface of the charging device.

[0063] Exemplarily, the wired charging circuit 40 can be an alternating current-direct current conversion circuit, which is used to convert the 220V / 50Hz power frequency alternating voltage into a direct current voltage to realize wired charging of the electronic device.

[0064] In an embodiment, the wireless charging circuit 10 includes an inverter circuit. The inverter circuit is coupled with the charging coil 30 and is used to wirelessly charge the electronic device through the charging coil 30.

[0065] In this embodiment, by taking the inverter circuit as the wireless charging circuit, the direct current voltage can be converted into a high-frequency alternating current voltage input to the charging coil to realize wireless charging through the charging coil, thereby improving the efficiency of wireless charging and reducing the size of the charging device.

[0066] In an embodiment, as shown in Figure 2 the inverter circuit includes a half-bridge circuit 11. The half-bridge circuit 11 is coupled with the charging coil 30.

[0067] In this embodiment, since the half-bridge circuit has a simple structure and high efficiency, the half-bridge circuit is used as an inverter circuit to perform voltage conversion, which reduces the complexity of the charging circuit structure and improves the efficiency of the charging circuit.

[0068] For example, in addition to the half-bridge circuit 11 being used as the inverter circuit, a forward circuit, a flyback circuit, a full-bridge circuit, etc. can also be used as the inverter circuit, which is not limited here.

[0069] In one embodiment, the charging control circuit 20 includes a driving circuit 21. The driving circuit 21 is coupled to the wireless charging circuit 10 and / or the wired charging circuit 40 to drive the wireless charging circuit 10 and / or the wired charging circuit 40 to operate.

[0070] In this embodiment, since the transistors in the wireless charging circuit and / or the wired charging circuit need to be continuously turned on and off to convert the voltage, the complexity of the charging control is reduced and the reliability of the charging control is improved by using a driving circuit to drive the transistors in the wireless charging circuit and / or the wired charging circuit to control the voltage output by the wireless charging circuit and / or the wired charging circuit.

[0071] For example, the drive circuit 21 may include a half-bridge drive circuit and a gate drive circuit. The half-bridge drive circuit is coupled to the control terminals of the transistors in the half-bridge circuit 11. The gate drive circuit is coupled to the control terminals of the transistors in the wired charging circuit 40. The half-bridge drive circuit and the gate drive circuit may be multiplexed.

[0072] In one embodiment, the charging control circuit 20 includes an identification circuit 22. The identification circuit 22 is coupled to the charging interface 50 of the charging device and is configured to identify the charging mode of the electronic device through the charging interface 50.

[0073] In this embodiment, because the identification circuit is coupled to the charging port of the charging device, after the charging port is coupled to the charging coil or to the electronic device via a data line, the identification circuit can identify the object to which the charging port is coupled and determine the charging mode of the electronic device. By identifying the charging mode of the electronic device through the identification circuit, the wired charging circuit or the wireless charging circuit is controlled to charge the electronic device, thereby avoiding the failure to charge the electronic device due to the use of the incorrect charging circuit, thereby improving the reliability of charging control.

[0074] For example, the identification circuit 22 may be coupled to an encryption and decryption circuit to prevent leakage of data transmitted by the identification circuit 22 .

[0075] In one embodiment, Figure 3As shown, the charging control circuit 20 includes a wired charging control circuit 23 and a wireless charging control circuit 24. The wired charging control circuit 23 is coupled with the wired charging circuit 40 for detecting and controlling the wired charging circuit 40. The wireless charging control circuit 24 is coupled with the wireless charging circuit 10 for detecting and controlling the wireless charging circuit 10.

[0076] In this embodiment, the wired charging control circuit can detect and control the wired charging circuit, avoiding damage to the wired charging circuit during operation and improving the reliability of the wired charging circuit operation. The wireless charging control circuit can detect and control the wireless charging circuit, avoiding damage to the wireless charging circuit during operation and improving the reliability of the wireless charging circuit operation. By detecting and controlling the wired charging circuit and the wireless charging circuit, the wired charging circuit and the wireless charging circuit can safely and reliably output the expected voltage during operation, thereby improving the reliability of the charging control.

[0077] In one embodiment, as shown, Figure 4 The wired charging control circuit 23 includes a compensation circuit 231. The compensation circuit 231 is coupled with the wired charging circuit 40 for loop compensation of the wired charging circuit 40.

[0078] In this embodiment, the compensation circuit compensates the wired charging circuit, enhancing the stability and transient response of the wired charging circuit, thereby improving the reliability of the charging control.

[0079] In one embodiment, the wired charging control circuit 23 includes a feedback circuit 232. The feedback circuit 232 is coupled with the wired charging circuit 40 for feedback of the voltage output by the wired charging circuit 40.

[0080] In this embodiment, the feedback circuit feeds back the voltage output by the wired charging circuit, facilitating determination of whether the voltage output by the wired charging circuit meets expectations for adjustment of the voltage output by the wired charging circuit, thereby improving the reliability of the charging control.

[0081] In one embodiment, the wired charging control circuit 23 includes a wired charging protection circuit 233. The wired charging protection circuit 233 is coupled with the wired charging circuit 40 for protection of the wired charging circuit 40.

[0082] In this embodiment, during wired charging of the electronic device, the wired charging circuit can have problems such as overcurrent, overvoltage, reverse connection, etc., causing damage to the wired charging circuit. By coupling the wired charging protection circuit with the wired charging circuit, protection is provided when the wired charging circuit has problems such as overcurrent, overvoltage, reverse connection, etc., to avoid damage to the wired charging circuit, thereby improving the reliability of the charging control.

[0083] In an embodiment, as shown in FIG. 1, the wireless charging control circuit 24 comprises a demodulation circuit 241. The demodulation circuit 241 is coupled with the charging coil 30 for demodulating the signal in the charging coil 30. Figure 5

[0084] In the embodiment, the charging voltage and current required in different charging stages are different during the wireless charging process. The required charging voltage and current are identified. The wireless charging circuit and / or the wired charging circuit are controlled to change the charging voltage and current emitted by the charging coil through the demodulation of the signal in the charging coil by the demodulation circuit, so as to improve the speed of the wireless charging.

[0085] For example, in the case that the wired charging control circuit 23 comprises the feedback circuit 232 and the input end of the wireless charging circuit 10 is coupled with the output end of the wired charging circuit 40, after the energy adjustment signal emitted by the electronic device to the charging coil 30 is demodulated by the demodulation circuit 241, the voltage output by the wired charging circuit 40 or the voltage output by the wireless charging circuit 10 can be adjusted by the feedback circuit 232.

[0086] For example, the demodulation circuit 241 can be coupled with the charging coil 30 through the charging interface 50.

[0087] In an embodiment, the wireless charging control circuit 24 comprises a measurement circuit 242. The measurement circuit 242 is coupled with the charging coil 30 for measuring the quality factor and / or the charging frequency of the charging coil 30.

[0088] In the embodiment, the quality factor and / or the charging frequency of the charging coil are measured by the measurement circuit during the wireless charging process to adjust the quality factor and / or the charging frequency, so as to improve the efficiency of the wireless charging.

[0089] For example, the measurement circuit 242 can be coupled with the charging coil 30 through the charging interface 50.

[0090] In an embodiment, the wireless charging control circuit 24 comprises a wireless charging protection circuit 243. The wireless charging protection circuit 243 is coupled with the wireless charging circuit 10 for protecting the wireless charging circuit 10.

[0091] In the embodiment, during the wireless charging of the electronic device, the wireless charging circuit can have problems such as overcurrent, overvoltage, reverse connection, etc., which can cause damage to the wireless charging circuit. By coupling the wireless charging protection circuit with the wireless charging circuit, the wireless charging circuit is protected when the problems such as overcurrent, overvoltage, reverse connection, etc. occur to avoid damage to the wireless charging circuit, so as to improve the reliability of the charging control.

[0092] In an embodiment, as shown in FIG. 1, the wireless charging control circuit 24 comprises a demodulation circuit 241. The demodulation circuit 241 is coupled with the charging coil 30 for demodulating the signal in the charging coil 30. Figure 3 ​As shown, the charging control circuit 20 includes a charging protocol circuit 25. The charging protocol circuit 25 is coupled with the charging interface 50 for charging protocol communication with the electronic device through the charging interface 50.

[0093] In this embodiment, during the wired charging process, since different electronic devices can support different charging protocols, protocol communication is needed. The charging protocol circuit communicates with the electronic device through the charging protocol to match the appropriate charging protocol, thereby improving the speed of wired charging and the reliability of charging control.

[0094] Exemplarily, the charging protocol circuit 25 can include a Power Delivery (PD) protocol circuit, a Battery Charging (BC) protocol circuit, a Quick Charge (QC) protocol circuit, a Universal Fast Charge Standard (UFCS) protocol circuit, etc.

[0095] In an embodiment, the charging control circuit 20 includes a current detection circuit 26. The current detection circuit 26 is coupled with the wired charging circuit 40 for detecting the current output by the wired charging circuit 40.

[0096] In this embodiment, the current output by the wired charging circuit is detected by the current detection circuit, avoiding the current output by the wired charging circuit being too large or too small to affect the charging of the electronic device, thereby improving the reliability of the charging control.

[0097] In an embodiment, the charging control circuit 20 includes an input voltage detection circuit 27. The input voltage detection circuit 27 is coupled with the power supply 60 for detecting the voltage input by the power supply 60.

[0098] In this embodiment, the voltage input by the power supply is detected by the input voltage detection circuit, avoiding the voltage input to the charging circuit being too large to damage the charging circuit or too small to make the charging circuit unable to run, thereby improving the reliability of the charging control.

[0099] In an embodiment, the charging control circuit 20 includes an output voltage detection circuit 28. The output voltage detection circuit 28 is coupled with the wired charging circuit 40 for detecting the voltage output by the wired charging circuit 40.

[0100] In this embodiment, the voltage output by the wired charging circuit is detected by the output voltage detection circuit, avoiding the voltage output by the wired charging circuit being too large or too small to affect the charging of the electronic device, thereby improving the reliability of the charging control.

[0101] For example, the charging control circuit 20 may further include one or more discharge circuits. The discharge circuit may be integrated into a single circuit with the input voltage detection circuit 27 or with the output voltage detection circuit 28. The discharge circuit is configured to reduce the voltage output by the wired charging circuit 40 and / or the voltage input by the power supply 60 to a preset voltage within a preset time after the electronic device is unplugged, in accordance with the charging protocol specified in the charging protocol circuit 25.

[0102] For example, the charging control circuit 20 may further include a voltage and current reference circuit. The voltage and current reference circuit is coupled to the power supply 60 and is configured to provide a reference voltage and a reference current to a portion of the circuits in the charging control circuit 20 .

[0103] For example, the charging control circuit 20 may further include a plurality of voltage conversion circuits. The plurality of voltage conversion circuits are coupled to the power supply 60 and configured to convert the voltage inputted by the power supply 60 to power some circuits in the charging control circuit 20.

[0104] In one embodiment, Figure 6 As shown, the charging control circuit 20 further includes a processing unit 29. The processing unit 29 is coupled to the driving circuit 21, the identification circuit 22, the compensation circuit 231, the feedback circuit 232, the wired charging protection circuit 233, the demodulation circuit 241, the measurement circuit 242, the wireless charging protection circuit 243, the charging protocol circuit 25, the current detection circuit 26, the input voltage detection circuit 27, and / or the output voltage detection circuit 28 in the charging control circuit 20.

[0105] In this embodiment, by coupling the processing unit with each circuit in the wireless charging circuit and the charging control circuit, the processing unit can obtain information such as voltage and current detected by some circuits to perform closed-loop control of the wired charging circuit and the wireless charging circuit, thereby improving the reliability of the charging circuit.

[0106] Exemplarily, the processing unit 29 may include a microcontroller (MCU) and digital control registers. For example, the processing unit 29 may include an interrupt circuit, a clock circuit, a general purpose input output (GPIO) interface, a digital-to-analog converter, an analog-to-digital converter, a watchdog circuit, a communication circuit, a timer, a controller, a volatile memory, a non-volatile memory, etc.

[0107] An exemplary embodiment of the present disclosure provides a charging circuit, such as Figure 7As shown, the charging circuit 1 includes a half-bridge circuit 11, a driving circuit 21, an identification circuit 22, a compensation circuit 231, a feedback circuit 232, a wired charging protection circuit 233, a demodulation circuit 241, a measurement circuit 242, a wireless charging protection circuit 243, a charging protocol circuit 25, a current detection circuit 26, an input voltage detection circuit 27, an output voltage detection circuit 28, and a processing unit 29. The processing unit 29 is coupled with the driving circuit 21, the identification circuit 22, the compensation circuit 231, the feedback circuit 232, the wired charging protection circuit 233, the demodulation circuit 241, the measurement circuit 242, the wireless charging protection circuit 243, the charging protocol circuit 25, the current detection circuit 26, the input voltage detection circuit 27, and the output voltage detection circuit 28. The half-bridge circuit 11, the demodulation circuit 241, and the measurement circuit 242 are coupled with the charging coil 30 through the charging interface 50. The driving circuit 21, the compensation circuit 231, the feedback circuit 232, the wired charging protection circuit 233, the current detection circuit 26, and the output voltage detection circuit 28 are coupled with the wired charging circuit 40. The driving circuit 21 and the wireless charging protection circuit 243 are coupled with the half-bridge circuit 11. The identification circuit 22 and the charging protocol circuit 25 are coupled with the electronic device through the charging interface 50. The input voltage detection circuit 27 is coupled with the power supply 60.

[0108] In one example embodiment, a charging chip is provided, which includes the charging circuit 1 as described above.

[0109] In one example embodiment, a charging device is provided, which includes the charging circuit 1 as described above, the wired charging circuit 40, and the charging interface 50, for charging an electronic device. Or, the charging device includes the charging chip as described above, the wired charging circuit 40, and the charging interface 50, for charging an electronic device. As Figure 8-1 As shown, in the case that the charging interface 50 of the charging device 70 is coupled with the charging coil 30 through the data line 80, the identification circuit 22 can identify that the charging method of the electronic device is the wireless charging method, and then wirelessly charge the electronic device through the wireless charging circuit 10. As Figure 8-2 As shown, in the case that the charging interface 50 of the charging device 70 is coupled with the electronic device 400 through the data line 80, the identification circuit 22 can identify that the charging method of the electronic device 400 is the wired charging method, and then wirelessly charge the electronic device 400 through the wired charging circuit 40.

[0110] In one example embodiment, an electronic device is provided, such as a mobile phone, a notebook computer, a tablet computer, a wearable device, and the like. The electronic device is charged by the charging device as described above.

[0111] Reference Figure 9As shown, the electronic device 400 can include one or more of the following components: a processing component 402, a memory 404, a power supply 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.

[0112] The processing component 402 typically controls overall operations of the electronic device 400, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 402 can include one or more processors 420 to execute instructions to complete all or part of steps of the above methods. In addition, the processing component 402 can include one or more modules to facilitate

[0113] The memory 404 is configured to store various types of data to support operations of the electronic device 400. Examples of these data include instructions to operate any application programs or methods on the electronic device 400, contact data, phonebook data, messages, pictures, videos, and so on. The memory 404 can be implemented by any type of volatile or non-volatile storage terminals 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 storage, flash memory, magnetic or optical disk.

[0114] The power supply component 406 supplies electrical power for the various components of the electronic device 400. The power supply component 406 can include a power supply management system, one or more power supplies, and other components associated with generating, managing and distributing electrical power for the electronic device 400.

[0115] The multimedia component 408 includes a screen to provide an output interface between the electronic device 400 and a user. In some embodiments, the screen can 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 an input signal from a user. The touch panel includes one or more touch sensors to sense a touch, a slide, and a gesture on the touch panel. The touch sensor can not only sense a boundary of a touching or a sliding action, but also detect duration and pressure related to the touching or sliding action. In some embodiments, the multimedia component 408 includes a front camera module and / or a rear camera module. The front camera module and / or the rear camera module can receive external multimedia data when the electronic device 400 is in an operation mode, such as a photographing mode or a video recording mode. Each of the front camera module and the rear camera module can be a fixed optical lens system or have a focal length and optical zoom ability.

[0116] The audio component 410 is configured to output and / or input an audio signal. For example, the audio component 410 includes a microphone (MIC) configured to receive an external audio signal when the electronic device 400 is in an operation 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 further includes a speaker to output an audio signal.

[0117] The I / O interface 412 provides an interface for the processing component 402 and peripheral interface modules, which can be a keypad, a click wheel, buttons, and the like. The buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0118] The sensor component 414 includes one or more sensors to provide various state assessments for the electronic device 400. For example, the sensor component 414 can detect an open / closed state of the electronic device 400, relative positioning of components, such as a display and a keypad of the electronic device 400, a change in position of the electronic device 400 or a component of the electronic device 400, presence or absence of user contact with the electronic device 400, an orientation or acceleration / deceleration of the electronic device 400, and a temperature change of the electronic device 400. The sensor component 414 can include a proximity sensor configured to detect presence of a nearby object without any physical touch. The sensor component 414 can further include a light sensor such as a CMOS or CCD image sensor for use in an imaging application. In some embodiments, the sensor component 414 can further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0119] The communication component 416 is configured to facilitate wired or wireless communication between the electronic device 400 and other terminals. The electronic device 400 can access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G, 5G, 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 technology.

[0120] In an exemplary embodiment, the electronic device 400 can be implemented with one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing terminals (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, micro-controllers, microprocessors, or other electronic elements for performing the above-described methods.

[0121] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as the memory 404 including instructions, is also provided, which can be executed by the processor 420 of the electronic device 400 to perform the above-described methods. 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 disc, and an optical data storage terminal, etc. When the instructions in the storage medium are executed by the processor of the terminal, the terminal is enabled to perform the methods shown in the above-described embodiments.

[0122] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the aspects disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure following, in general, the principles of the present disclosure and including such features to the extent that they are not disclosed in the prior art. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the present disclosure is indicated by the appended claims.

[0123] It should be understood that the present disclosure is not limited to the precise structures herein described and illustrated in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is indicated by the appended claims, and all changes that come within the meaning and range of equivalents are intended to be embraced therein.

Claims

1. A charging circuit, characterized by, The charging circuit comprises: A wireless charging circuit coupled with a charging coil; A charging control circuit coupled with the wireless charging circuit and a wired charging circuit, the charging control circuit being configured to control the wireless charging circuit to wirelessly charge the electronic device via the charging coil or control the wired charging circuit to wirelessly charge the electronic device.

2. The charging circuit of claim 1, wherein, The wireless charging circuit comprises: An inverter circuit coupled with the charging coil, the inverter circuit being configured to wirelessly charge the electronic device via the charging coil.

3. The charging circuit of claim 2, wherein, The inverter circuit comprises: A half-bridge circuit coupled with the charging coil.

4. The charging circuit of claim 1, wherein, The charging control circuit comprises: A drive circuit coupled with the wireless charging circuit and / or the wired charging circuit, the drive circuit being configured to drive the wireless charging circuit and / or the wired charging circuit to operate.

5. The charging circuit of claim 1, wherein, The charging control circuit comprises: An identification circuit coupled with a charging interface, the identification circuit being configured to identify a charging mode of the electronic device via the charging interface.

6. The charging circuit of claim 1, wherein, The charging control circuit comprises: A wired charging control circuit coupled with the wired charging circuit, the wired charging control circuit being configured to detect and control the wired charging circuit; A wireless charging control circuit coupled with the wireless charging circuit, the wireless charging control circuit being configured to detect and control the wireless charging circuit.

7. The charging circuit of claim 6, wherein, The wired charging control circuit comprises: A compensation circuit coupled with the wired charging circuit, the compensation circuit being configured to perform loop compensation on the wired charging circuit.

8. The charging circuit of claim 6, wherein, The wired charging control circuit comprises: A feedback circuit coupled with the wired charging circuit, the feedback circuit being configured to feedback a voltage output by the wired charging circuit.

9. The charging circuit of claim 6, wherein, The wired charging control circuit comprises: A wired charging protection circuit coupled with the wired charging circuit, the wired charging protection circuit being configured to protect the wired charging circuit.

10. The charging circuit of claim 6, wherein, The wireless charging control circuit comprises: A demodulation circuit coupled with the charging coil, the demodulation circuit being configured to demodulate a signal in the charging coil.

11. The charging circuit of claim 6, wherein, The wireless charging control circuit comprises: A measurement circuit coupled with the charging coil, the measurement circuit being configured to measure a quality factor and / or a charging frequency of the charging coil.

12. The charging circuit of claim 6, wherein, The wireless charging control circuit comprises: A wireless charging protection circuit coupled with the wireless charging circuit, the wireless charging protection circuit being configured to protect the wireless charging circuit.

13. The charging circuit of claim 1, wherein, The charging control circuit comprises: A charging protocol circuit coupled with a charging interface, the charging protocol circuit being configured to perform charging protocol communication with the electronic device via the charging interface.

14. The charging circuit of claim 1, wherein, The charging control circuit comprises: a current detection circuit coupled with the wired charging circuit, the current detection circuit configured to detect a current output by the wired charging circuit; and / or an input voltage detection circuit coupled with the power supply, the input voltage detection circuit configured to detect a voltage input by the power supply; and / or an output voltage detection circuit coupled with the wired charging circuit, the output voltage detection circuit configured to detect a voltage output by the wired charging circuit.

15. The charging circuit according to any one of claims 1 to 14, characterized by The charging control circuit further comprises: a processing unit coupled with the drive circuit, the identification circuit, the compensation circuit, the feedback circuit, the wired charging protection circuit, the demodulation circuit, the measurement circuit, the wireless charging protection circuit, the charging protocol circuit, the current detection circuit, the input voltage detection circuit, and / or the output voltage detection circuit in the charging control circuit.

16. A charging chip, comprising: The charging chip comprises the charging circuit according to any one of claims 1 to 15.

17. A charging device, comprising: The charging device comprises the charging circuit according to any one of claims 1 to 15, or the charging chip according to claim 16.

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