CN106786907A - A charging circuit, method and terminal - Google Patents

Abstract

The invention provides a charging circuit, a terminal and a charging method. The circuit comprises a wired charging interface, a wireless charging interface, a first detection circuit, a second detection circuit, a switch device, a driver and a battery charging loop; the wireless charging interface is connected with a first input end of the switch device, the wired charging interface is connected with a second input end of the switch device, and an output end of the switch device is connected with the battery charging loop; the first detection circuit is used for generating a first detection signal when detecting that the wireless charging interface is coupled with the wireless charging adapter; the second detection circuit is used for generating a second detection signal when detecting that the wired charging interface is coupled with the wired charging adapter; and the driver controls the switch device to communicate with a wireless charging circuit or a wired charging circuit according to the first detection signal and the second detection signal. The charging current can be prevented from being excessively large.

Description

A charging circuit, method and terminal

technical field

The invention relates to the field of wireless charging, in particular to a charging circuit, method and terminal.

Background technique

With the development of science and technology, a terminal appears on the market, which can support both wired charging and wireless charging.

In a terminal compatible with wired charging and wireless charging, if the terminal is connected to wireless charging and wired charging at the same time, then the charging circuit of the terminal will receive two streams of current, which will cause the charging current to be too large and cause internal damage to the terminal. short circuit.

Contents of the invention

The embodiments of the present invention provide a charging circuit, method and terminal, which can prevent the wired charging circuit and the wireless charging circuit from being connected at the same time, thereby preventing the charging current from being too large.

The first aspect of the embodiments of the present invention discloses a charging circuit, wherein the wireless charging interface is connected to the first input end of the switching device, the wired charging interface is connected to the second input end of the switching device, The output end of the switching device is connected to the battery charging circuit;

The first detection circuit is connected between the wireless charging interface and the driver, and is used to generate a first detection signal when detecting that the wireless charging interface is coupled with the wireless charging adapter;

The second detection circuit is connected between the wired charging interface and the driver, and is used to generate a second detection signal when detecting that the wired charging interface is coupled to the wired charging adapter;

Wherein, the driver is also connected to the control terminal of the switching device, and when receiving the first detection signal, the driver sends a first control signal to the switching device so that the switching device is connected to the wireless charging circuit, And when receiving the second detection signal, sending a second control signal to the switch device so that the switch device is connected to the wired charging circuit.

The second aspect of the present invention discloses a terminal, and the terminal includes the charging circuit described in the first aspect.

A third aspect of the present invention discloses a charging method, the method comprising:

When receiving the first detection signal, control the wired charging circuit to connect; wherein, the first detection signal indicates that the wireless charging interface is coupled with the wireless charging adapter;

When the second detection signal is received, the wireless charging loop is controlled to be connected; wherein, the second detection signal indicates that the wired charging interface is coupled with the wired charging adapter.

The solution of the embodiment of the present invention provides that the circuit includes a wired charging interface, a wireless charging interface, a first detection circuit, a second detection circuit, a switching device, a driver, and a battery charging circuit; wherein, the wireless charging interface and The first input end of the switching device is connected, the wired charging interface is connected to the second input end of the switching device, and the output end of the switching device is connected to the battery charging circuit; the first detection circuit Connected between the wireless charging interface and the driver, used to generate a first detection signal when detecting that the wireless charging interface is coupled with the wireless charging adapter; the second detection circuit is connected to the wired Between the charging interface and the driver, it is used to generate a second detection signal when it is detected that the wired charging interface is coupled with the wired charging adapter; wherein, the driver is also connected to the control terminal of the switching device, so When the driver receives the first detection signal, it sends a first control signal to the switch device so that the switch device connects to the wireless charging circuit, and when it receives the second detection signal, it sends a control signal to the switch device. The second control signal enables the switching device to communicate with the wired charging loop. It can be seen that, by using the circuit provided by the present invention, it is possible to prevent the wired charging circuit and the wireless charging circuit from being connected at the same time, thereby preventing the charging current from being too large.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Figure 1a is a schematic diagram of a charging circuit provided by an embodiment of the present invention;

Fig. 1b is a schematic diagram of a charging physical circuit provided by an embodiment of the present invention;

FIG. 2 is a schematic diagram of a physical structure of a terminal provided by an embodiment of the present invention;

FIG. 3 is a schematic flowchart of a charging method provided by an embodiment of the present invention;

FIG. 4 is a schematic flowchart of another charging method provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a physical device of a mobile phone provided by an embodiment of the present invention.

detailed description

The embodiment of the present invention provides a charging circuit, which can prevent the wired charging circuit and the wireless charging circuit from being connected at the same time, thereby preventing the charging current from being too large.

In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the embodiment of the present invention. Some examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

The terms "first", "second" and "third" appearing in the specification, claims and drawings of the present invention are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or apparatuses.

One embodiment of the present invention discloses that the circuit includes a wired charging interface, a wireless charging interface, a first detection circuit, a second detection circuit, a switching device, a driver, and a battery charging circuit; wherein, the wireless The charging interface is connected to the first input end of the switching device, the wired charging interface is connected to the second input end of the switching device, and the output end of the switching device is connected to the battery charging circuit; the first The detection circuit is connected between the wireless charging interface and the driver, and is used to generate a first detection signal when the wireless charging interface is detected to be coupled with the wireless charging adapter; the second detection circuit is connected to the Between the wired charging interface and the driver, it is used to generate a second detection signal when it is detected that the wired charging interface is coupled to the wired charging adapter; wherein, the driver is also connected to the control terminal of the switching device When the driver receives the first detection signal, it sends the first control signal to the switch device so that the switch device connects to the wireless charging loop, and when it receives the second detection signal, it sends the control signal to the switch device. The switch device sends a second control signal to make the switch device communicate with the wired charging loop.

Please refer to FIG. 1a . FIG. 1a is a charging circuit 100 provided by an embodiment of the present invention. Wherein, as shown in FIG. 1 , the circuit 100 includes a wired charging interface 110, a wireless charging interface 120, a first detection circuit 130, a second detection circuit 140, a switching device 150, a driver 160 and a battery charging circuit 170;

Wherein, the switching device 150 is a single-pole double-throw switch, and the switching device 150 includes a first static contact, a second static contact, a moving contact and a control terminal; wherein, the first static contact is connected to the wireless charging port 120; the second static contact is connected to the wired charging port 110; the movable contact is connected to the battery charging circuit 170; the control terminal is connected to the driver.

Wherein, the wireless charging interface 120 is connected to the first end of the switching device 150; the first detection circuit 130 is located between the wireless charging interface 120 and the driver 160;

Wherein, it should be pointed out that the first end of the switching device 150 is the first static contact.

Wherein, it should be pointed out that the wireless charging interface 120 is used for connecting a wireless adapter;

For example, the wireless adapter has a primary coil, and the wireless charging interface 120 has a secondary coil. When the primary coil has an alternating current of a certain frequency, a certain current is generated in the secondary coil through electromagnetic induction, thereby transferring energy from the transmission end (primary coil ) is transferred to the receiving end (secondary coil), that is to say, the wireless charging interface 120 will receive the current.

Wherein, the first detection circuit 130 is configured to generate a first detection signal when it is detected that the wireless charging interface is coupled with the wireless charging adapter;

For example, when the wireless charging port 120 establishes a connection with the wireless adapter, the wireless adapter will provide a voltage of 5V; at this time, the first detection circuit 130 will divide the 5V voltage into voltages suitable for the input voltage range of the driver 160, generally 1.8V or 3.0V.

It should be noted that the first detection circuit 130 includes a first resistor and a second resistor; the first end of the first resistor is connected to the wireless charging interface 120; the second end of the first resistor is connected to the second resistor the first end of the second resistor; the second end of the second resistor is grounded; the driver 160 is connected to the second end of the first resistor;

The first detection circuit 130 is specifically configured to generate a first voltage when it is detected that the wireless charging interface is coupled with the wireless charging adapter;

The driver 160 is specifically configured to, when the first voltage is equal to a first preset threshold, send a control signal to the switching device so that the switching device is connected to a wireless charging circuit.

Wherein, the connection of the wireless charging circuit means that the first static contact point is connected with the moving contact point.

Wherein, the wired charging interface 110 is connected to the second end of the switching device 150; the second detection circuit 140 is located between the wired charging interface 110 and the driver 160;

Wherein, the wired charging interface is used to connect a wired adapter;

Wherein, the second detection circuit 140 is configured to generate a second detection signal when detecting that the wired charging interface is coupled to the wired charging adapter;

For example, when the wired charging port 110 establishes a connection with the wired adapter (usually through a connection line, the plug of the connecting line can be inserted into the wired charging port 110), the wireless adapter will provide a voltage of 5V; then at this time, the second detector The test circuit 140 divides the 5V voltage into a voltage suitable for the input voltage range of the driver 160 , generally 1.8V or 3.0V.

It should be noted that the second detection circuit 140 includes a third resistor and a fourth resistor; the first end of the third resistor is connected to the wired charging interface 110; the second end of the third resistor is connected to the fourth resistor the first end of the fourth resistor; the second end of the fourth resistor is grounded; the driver 160 is connected to the second end of the third resistor;

The second detection circuit 140 is specifically configured to generate a second voltage when it is detected that the wired charging interface is coupled to the wired charging adapter;

The driver 160 is specifically configured to, when the second voltage is equal to a second preset threshold, send a control signal to the switching device so that the switching device is connected to a wired charging circuit.

Wherein, the connection of the wired charging circuit refers to the connection between the second static contact and the moving contact.

Optionally, the driver 160 is specifically configured to generate a control signal according to a preset priority when the first voltage is equal to the first preset threshold and the second voltage is equal to the second preset threshold, and the control The signal is used to instruct the switching device to switch to a wireless charging loop or a wired charging loop.

Wherein, the first preset threshold and the second preset threshold may be equal or unequal.

For example, both the first preset threshold and the second preset threshold can be 3V. When the first voltage is 3V and the second voltage is 0V, it means that the wireless adapter is connected at this time, then it is necessary to send a control signal to the switching device 150 to make the switching device 150 switch to the wireless charging circuit for wireless charging circuit charging .

For example, when the first voltage is equal to the preset threshold and the second voltage is less than the preset threshold, the first port of the driver 160 is at a high level, and the second port of the driver 160 is at a low level, then the driver 160 will output a high level to the switching device, so that the switching device 150 switches to the wireless charging circuit, so as to perform wireless charging circuit charging.

Optionally, the driver 160 is specifically configured to send a control signal to the switching device 150 so that the switching device 150 switches to a wired charging loop when the first voltage is less than a preset threshold and the second voltage is equal to the preset threshold.

For example, the preset threshold can be 3V. When the second voltage is 3V and the first voltage is 0V, it means that the wired adapter is connected at this time, and then it is necessary to send a control signal to the switching device 150 to make the switching device 150 switch to the wired charging circuit, so as to perform wired charging circuit charging .

For example, when the second voltage is equal to the preset threshold and the first voltage is less than the preset threshold, the first port of the driver 160 is at a low level, and the second port of the driver 160 is at a high level, then the driver 160 will output a low level to the switching device, so that the switching device 150 switches to the wired charging loop, so as to perform wired charging loop charging.

Optionally, the driver 160 is specifically configured to generate a control signal according to a preset priority when the first voltage is equal to the preset threshold and the second voltage is equal to the preset threshold, and the control signal is used to indicate the The switching device switches to a wireless charging loop or a wired charging loop.

For example, the preset threshold can be 3V or 1.8V.

For example, the priority of wired charging may be higher than that of wireless charging. Then, when the first voltage is equal to the preset threshold and the second voltage is equal to the preset threshold, the control signal is used to instruct the switching device to switch the wired charging loop so as to perform wired charging loop charging.

For example, wireless charging may be prioritized over wired charging. Then, when the first voltage is equal to the preset threshold and the second voltage is equal to the preset threshold, the control signal is used to instruct the switching device to switch the wireless charging loop for wireless charging loop charging.

For example, when the first voltage is equal to the preset threshold and the second voltage is equal to the preset threshold, the first port of the driver 160 is at a high level, and the second port of the driver 160 is at a high level. , if the priority of the wireless charging port is high, then instruct the switching device to switch to the wireless charging loop for wireless charging loop charging. If the priority of the wired charging port is high, the switching device is instructed to switch to the wired charging loop for wired charging loop charging.

Optionally, the driver is also connected to the central processor; the driver 160 is also used to send a control signal to the central processor; the central processor is used to receive the control signal sent by the driver to determine the current charging mode ; The central processing unit is also used to determine the target adapter according to the current charging method, and interact with the target adapter to control the charging speed.

For example, when the charging method is wired charging, the central processing unit can determine the target charging current value according to the current battery voltage, and send an instruction to the wired adapter so that the wired adapter adjusts the output current to the target charging current value .

It can be seen that in the solution of the embodiment of the present invention, the circuit includes a wired charging interface, a wireless charging interface, a first detection circuit, a second detection circuit, a switching device, a driver, and a battery charging circuit; wherein, the wireless The charging interface is connected to the first end of the switching device; the wireless charging interface is also connected to the first end of the first detection circuit; the second end of the first detection circuit is connected to the first end of the driver Connected at one end; wherein, the wired charging interface is connected to the second end of the switching device; the wireless charging interface is also connected to the first end of the second detection circuit; the second detection circuit The second terminal is connected to the second terminal of the driver; wherein, the third port of the driver is connected to the control terminal of the switching device; the third terminal of the switching device is connected to the battery charging circuit. It can be seen that, by using the circuit provided by the present invention, it is possible to prevent the wired charging circuit and the wireless charging circuit from being connected at the same time, thereby preventing the charging current from being too large.

Please refer to Fig. 1b, which is a physical circuit corresponding to Fig. 1a. The physical circuit includes a wired charging interface 210, a wireless charging interface 220, a first detection circuit 230, a second detection circuit 240, a switching device 250, a driver 260, and a battery charging circuit 270; the specific connection methods and functions are implemented as described above For example, it will not be repeated here.

Please refer to FIG. 2 . FIG. 2 is a terminal 300 provided by an embodiment of the present invention. Wherein, on the basis of FIG. 1 , as shown in FIG. 2 , the terminal 300 includes a charging circuit 310 , a central processing unit 320 and a communication unit 330 .

Optionally, the driver 160 is also connected to the central processor 320; the driver 160 is also used to send a control signal to the central processor 320; the central processor 320 is used to receive the control signal sent by the driver to determine the current Charging mode: the central processing unit 320 is also used to determine the target adapter according to the current charging mode, and interact with the target adapter through the communication unit 330 to control the charging speed.

For example, when the charging method is wired charging, the central processing unit 320 can determine the target charging current value according to the current battery voltage, and send an instruction to the wired adapter through the communication unit 330 so that the wired adapter adjusts the output current to the desired value. The above target charging current value.

Please refer to FIG. 3 . FIG. 3 is a charging method provided by an embodiment of the present invention. Wherein, as shown in FIG. 3, a charging method provided by an embodiment of the present invention includes the following content:

S401. When a first detection signal is received, control the wired charging circuit to connect; wherein, the first detection signal indicates that the wireless charging interface is coupled to the wireless charging adapter.

Wherein, it should be pointed out that the execution subject of the present invention is a terminal, such as a smart phone, a wearable device, a tablet computer, and the like.

S402. When receiving the second detection signal, control the wireless charging loop to connect; wherein, the second detection signal indicates that the wired charging interface is coupled with the wired charging adapter.

It should be pointed out that the first detection signal is a first voltage; the second detection signal is a second voltage.

Optionally, when the first voltage is equal to the first preset threshold and the second voltage is smaller than the second preset threshold, the wireless charging circuit is connected.

Wherein, the first voltage and the second voltage may be equal or unequal.

Wherein, the preset threshold may be 1.8 or 3V, which is not limited here.

When the first voltage is less than the first preset threshold and the second voltage is equal to the second preset threshold, the wired charging circuit is connected.

When the first voltage is equal to the first preset threshold and the second voltage is equal to the second preset threshold, the connection of the wireless charging circuit or the connection of the wired charging circuit is controlled according to a preset priority.

Wherein, the preset priority may be: the priority of the wireless charging loop is higher than that of the wired charging loop. It is also possible that the priority of the wireless charging loop is higher than that of the wired charging loop. The preset priority may be set at the factory, or manually set by the user through the operation interface.

It can be seen that in the solution of the embodiment of the present invention, the determination method for connecting the wireless charging loop or the limited charging loop is refined, which can prevent the wireless charging loop and the limited charging loop from being connected at the same time.

Please refer to FIG. 4 . FIG. 4 is a charging method provided by an embodiment of the present invention. Wherein, as shown in FIG. 4, a charging method provided by an embodiment of the present invention includes the following content:

S501. When a first detection signal is received, control the wired charging circuit to connect; wherein, the first detection signal indicates that the wireless charging interface is coupled to the wireless charging adapter;

Wherein, it should be pointed out that the execution subject of the present invention is a terminal, such as a smart phone, a wearable device, a tablet computer, and the like.

S502. When receiving a second detection signal, control the wireless charging loop to connect; wherein, the second detection signal indicates that the wired charging interface is coupled to the wired charging adapter.

S503. When receiving the first detection signal and the second detection signal at the same time, control the connection of the wireless charging circuit or the connection of the wired charging circuit according to the preset priority.

S504. When it is detected that the wireless charging loop is connected or the wired charging loop is connected, communicate with the target adapter according to the current battery voltage so that the target adapter adjusts the output power according to the current battery voltage.

Wherein, the preset priority may be: the priority of the wireless charging loop is higher than that of the wired charging loop. It is also possible that the priority of the wireless charging loop is higher than that of the wired charging loop. The preset priority may be set at the factory, or manually set by the user through the operation interface.

Please refer to FIG. 5 . FIG. 5 is a block diagram of a partial structure of a terminal-related mobile phone provided by an embodiment of the present invention. 5, the mobile phone includes: a radio frequency (Radio Frequency, RF) circuit 610, a memory 620, an input unit 630, a display unit 640, a sensor 650, an audio circuit 660, a wireless fidelity (Wireless Fidelity, Wi-Fi) module 670, a processing 680, and the charging circuit 690 shown in FIG. 1 and other components. Those skilled in the art can understand that the structure of the mobile phone shown in FIG. 5 is not limited to the mobile phone, and may include more or less components than shown in the figure, or combine some components, or arrange different components.

The following is a specific introduction to each component of the mobile phone in conjunction with Figure 5:

RF circuitry 610 may be used for the reception and transmission of information. Generally, the RF circuit 610 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (Low Noise Amplifier, LNA), a duplexer, and the like. In addition, RF circuitry 610 may also communicate with networks and other devices via wireless communications. The above wireless communication can use any communication standard or protocol, including but not limited to Global System of Mobile Communication (Global System of Mobilecommunication, GSM), General Packet Radio Service (General Packet Radio Service, GPRS), Code Division Multiple Access (Code Division Multiple Access, CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (Short Messaging Service, SMS), etc.

The memory 620 can be used to store software programs and modules, and the processor 680 executes various functional applications and data processing of the mobile phone by running the software programs and modules stored in the memory 620 . The memory 620 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as wireless charging function, etc.); Created data (such as voltage preset thresholds, etc.), etc. In addition, the memory 620 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices.

The input unit 630 can be used to receive input numbers or character information, and generate key signal input related to user settings and function control of the mobile phone. Specifically, the input unit 630 may include a fingerprint module 631 and other input devices 632 . The fingerprint module 631 can collect the fingerprint data of the user on it. Optionally, the fingerprint module 631 may include an optical fingerprint module, a capacitive fingerprint module, and a radio frequency fingerprint module. Taking the fingerprint module 631 as an example of a capacitive fingerprint module, it specifically includes sensing electrodes (n1 abnormal sensing electrodes and n2 normal sensing electrodes) and signal processing circuits (such as amplification circuits, noise suppression circuits) connected to the sensing electrodes. , analog-to-digital conversion circuit, etc.). In addition to the fingerprint module 631 , the input unit 630 may also include other input devices 632 . Specifically, other input devices 632 may include, but are not limited to, one or more of physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, joysticks, and the like.

The display unit 640 may be used to display information input by or provided to the user and various menus of the mobile phone. The display unit 640 may include a display screen 641. Optionally, the display screen 641 may be configured in the form of a liquid crystal display (Liquid Crystal Display, LCD), an organic light-emitting diode (Organic Light-Emitting Diode, OLED), or the like. Although in FIG. 5 , the fingerprint module 631 and the display screen 641 are used as two independent components to realize the input and input functions of the mobile phone, in some embodiments, the fingerprint module 631 and the display screen 641 can be integrated and Realize the input and output functions of the mobile phone.

The handset may also include at least one sensor 650, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display screen 641 according to the brightness of the ambient light, and the proximity sensor may turn off the display screen 641 and/or when the mobile phone is moved to the ear. or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used to identify the application of mobile phone posture (such as horizontal and vertical screen switching, related Games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc.; as for other sensors such as gyroscope, barometer, hygrometer, thermometer, infrared sensor, etc. repeat.

The audio circuit 660, the speaker 661 and the microphone 662 can provide an audio interface between the user and the mobile phone. The audio circuit 660 can transmit the electrical signal converted from the received audio data to the speaker 561, and the speaker 661 converts it into an audio signal output; After being received, it is converted into audio data, and then the audio data is processed by the output processor 680, and then sent to another mobile phone through the RF circuit 610, or the audio data is output to the memory 620 for further processing.

WiFi is a short-distance wireless transmission technology. The mobile phone can help users send and receive emails, browse web pages, and access streaming media through the WiFi module 670, which provides users with wireless broadband Internet access. Although FIG. 5 shows the WiFi module 670, it can be understood that it is not an essential component of the mobile phone, and can be completely omitted as required without changing the essence of the invention.

The processor 680 is the control center of the mobile phone. It uses various interfaces and lines to connect various parts of the entire mobile phone. By running or executing software programs and/or modules stored in the memory 620, and calling data stored in the memory 620, execution Various functions and processing data of the mobile phone, so as to monitor the mobile phone as a whole. Optionally, the processor 680 may include one or more processing units; preferably, the processor 680 may integrate an application processor and a modem processor, wherein the application processor mainly processes operating systems, user interfaces, and application programs, etc. , the modem processor mainly handles wireless communications. It can be understood that the foregoing modem processor may not be integrated into the processor 680 .

The mobile phone also includes a charging circuit 690 (such as a battery) for supplying power to various components. Preferably, the charging circuit can be logically connected to the processor 680 through the power management system, so as to realize functions such as managing charging, discharging, and power consumption management through the power management system. .

Although not shown, the mobile phone may also include a camera, a Bluetooth module, etc., which will not be repeated here.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or can be Integrate into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage media include: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes. .

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still understand the foregoing The technical solutions recorded in each embodiment are modified, or some of the technical features are replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A charging circuit, characterized in that the circuit includes a wired charging interface, a wireless charging interface, a first detection circuit, a second detection circuit, a switching device, a driver, and a battery charging circuit; Wherein, the wireless charging interface is connected to the first input end of the switching device, the wired charging interface is connected to the second input end of the switching device, and the output end of the switching device is connected to the battery charging circuit ; The first detection circuit is connected between the wireless charging interface and the driver, and is used to generate a first detection signal when detecting that the wireless charging interface is coupled with the wireless charging adapter; The second detection circuit is connected between the wired charging interface and the driver, and is used to generate a second detection signal when detecting that the wired charging interface is coupled to the wired charging adapter; Wherein, the driver is also connected to the control terminal of the switching device, and when receiving the first detection signal, the driver sends a first control signal to the switching device so that the switching device is connected to the wireless charging circuit, And when receiving the second detection signal, sending a second control signal to the switch device so that the switch device is connected to the wired charging circuit. 2. The charging circuit according to claim 1, wherein the switching device is a single-pole double-throw switch, and the switching device includes a first static contact, a second static contact, a moving contact and a control terminal; Wherein, the first static contact is connected to the wireless charging port; the second static contact is connected to the wired charging port; the movable contact is connected to the battery charging circuit; the control terminal is connected to the The drive is connected. 3. The charging circuit according to claim 2, wherein the first detection circuit comprises a first resistor and a second resistor; the first end of the first resistor is connected to the wireless charging interface; the The second end of the first resistor is connected to the first end of the second resistor; the second end of the second resistor is grounded; the driver is connected to the second end of the first resistor; The first detection circuit is specifically configured to generate a first voltage when it detects that the wireless charging interface is coupled to the wireless charging adapter; The driver is specifically configured to, when the first voltage is equal to a first preset threshold, send a control signal to the switching device so that the switching device is connected to a wireless charging circuit. 4. The charging circuit according to claim 3, wherein the second detection circuit includes a third resistor and a fourth resistor; the first end of the third resistor is connected to the wired charging interface; the The second end of the third resistor is connected to the first end of the fourth resistor; the second end of the fourth resistor is grounded; the driver is also connected to the second end of the third resistor; The second detection circuit is specifically configured to generate a second voltage when it detects that the wired charging interface is coupled to the wired charging adapter; The driver is specifically configured to, when the second voltage is equal to a second preset threshold, send a control signal to the switching device so that the switching device is connected to a wired charging circuit. 5. The charging circuit according to claim 4, characterized in that, The driver is specifically configured to generate a control signal according to a preset priority when the first voltage is equal to the first preset threshold and the second voltage is equal to the second preset threshold, and the control signal is used for Instructing the switching device to switch to a wireless charging loop or a wired charging loop. 6. The charging circuit according to claim 1, wherein the driver is also connected to the central processing unit; The driver is also used to send a control signal to the central processing unit; The central processing unit is configured to receive a control signal sent by the driver to determine the current charging mode; The central processing unit is further configured to determine a target adapter according to the current charging mode, and interact with the target adapter to control the charging speed. 7. A terminal, characterized in that the terminal comprises the charging circuit according to any one of claims 1-6. 8. A charging method, characterized in that the method comprises: When receiving the first detection signal, control the wired charging circuit to connect; wherein, the first detection signal indicates that the wireless charging interface is coupled with the wireless charging adapter; When the second detection signal is received, the wireless charging loop is controlled to be connected; wherein, the second detection signal indicates that the wired charging interface is coupled with the wired charging adapter. 9. The method according to claim 8, further comprising: When the first detection signal and the second detection signal are received at the same time, the connection of the wireless charging circuit or the connection of the wired charging circuit is controlled according to the preset priority. 10. The method according to claim 8 or 9, characterized in that the method further comprises: When it is detected that the wireless charging loop is in the connected state or the wired charging loop is in the connected state, communicate with the target adapter according to the current battery voltage so that the target adapter adjusts the output power according to the current battery voltage.