CN108988440B - Charging circuit, electronic device and charging method - Google Patents

Abstract

Embodiments of the present application provide a charging circuit, an electronic device, and a charging method. The electronic device includes a battery, and the charging circuit includes a wired charging circuit, a wireless charging circuit, and a control circuit. An input end of the wired charging circuit is used to connect to an output end of a wired charger. , the output end of the wired charging circuit is connected with the first input end of the control circuit, the second input end of the control circuit is connected with the output end of the wireless charging circuit, the first output end of the control circuit is connected with the first charging terminal of the battery, and the control The second output end of the circuit is connected with the second charging terminal of the battery; the control circuit is used to connect the output end of the wired charging circuit with the first output end of the control circuit or the second output end of the control circuit; the control circuit is also used to connect the The output end of the wireless charging circuit is communicated with the first output end of the regulating circuit or the second output end of the regulating circuit. The embodiment of the present application can improve the charging efficiency.

Description

Charging circuit, electronic device and charging method

technical field

The present application relates to the field of electronic technology, and in particular, to a charging circuit, an electronic device and a charging method.

Background technique

With the development of electronic technology, wireless charging technology has been gradually applied to terminals, such as mobile phones, tablet computers or remote control devices and other terminals that contain batteries. Since the terminal does not need to be connected to the power supply through a wire during the wireless charging process, the wireless charger is used to charge the terminal at different locations. Wireless charging and wired charging generally charge the battery separately, and the same terminal of the battery is charged during the actual charging process, and the charging efficiency is low.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a charging circuit, an electronic device, and a charging method, which can improve the charging efficiency of a battery.

An embodiment of the present application provides a charging circuit, which is applied to an electronic device, where the electronic device includes a battery, and the charging circuit includes a wired charging circuit, a wireless charging circuit, and a regulation circuit, wherein:

The input end of the wired charging circuit is used to connect the output end of the wired charger, the output end of the wired charging circuit is connected to the first input end of the regulation circuit, and the second input end of the regulation circuit is connected to the wireless charging The output end of the circuit is connected, the first output end of the regulating circuit is connected with the first charging terminal of the battery, and the second output end of the regulating circuit is connected with the second charging terminal of the battery;

The regulation circuit is used to connect the output end of the wired charging circuit with the first output end of the regulation circuit or the second output end of the regulation circuit;

The regulation circuit is also used for connecting the output end of the wireless charging circuit with the first output end of the regulation circuit or the second output end of the regulation circuit.

An embodiment of the present application provides an electronic device, including a charging circuit, where the charging circuit is the above-mentioned charging circuit.

An embodiment of the present application provides a charging method, which is applied to an electronic device. The electronic device includes a charging circuit and a battery. The charging circuit includes a wired charging circuit, a wireless charging circuit, and a regulation circuit. Connect the output end of the wired charger, the output end of the wired charging circuit is connected to the first input end of the regulation circuit, the second input end of the regulation circuit is connected to the output end of the wireless charging circuit, so The first output end of the regulation circuit is connected to the first charging terminal of the battery, and the second output end of the regulation circuit is connected to the second charging terminal of the battery;

The charging method includes: detecting the state of the first charging terminal and the state of the second charging terminal; judging whether the state of the first charging terminal and the state of the second charging terminal are abnormal; When a charging terminal is in a normal state and the second charging terminal is in a normal state, the regulating circuit controls the first input terminal to communicate with the first output terminal, and the regulating circuit controls the first input terminal to communicate with the first output terminal. The two input terminals are connected to the second output terminal; if the first charging terminal is in a normal state and the second charging terminal is in an abnormal state, the control circuit controls the first input terminal and the The first output terminal is connected, and the control circuit controls the second input terminal to disconnect from the second output terminal; if the first charging terminal is in an abnormal state, and the second charging terminal is in an abnormal state When the control circuit controls the first input end and the second input end to be disconnected from the first output end, and controls the first input end and the second input end to be connected to the first output end through the control circuit The second output is disconnected.

In the embodiment of the present application, the wired charging circuit is connected to one charging terminal of the battery, the wired charging circuit can charge the battery alone, the wireless charging circuit is connected to another charging terminal of the battery, and the wireless charging circuit can charge the battery alone. The control circuit can control the wired charging circuit and the wireless charging circuit to charge the battery, and the wired charging circuit and the wireless charging circuit can jointly charge the battery, which can improve the charging efficiency.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments.

FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

FIG. 2 is a structural block diagram of an electronic device provided by an embodiment of the present application.

FIG. 3 is a schematic diagram of a first structure of a charging circuit according to an embodiment of the present application.

FIG. 4 is a schematic diagram of a second structure of a charging circuit according to an embodiment of the present application.

FIG. 5 is a schematic diagram of a third structure of a charging circuit provided by an embodiment of the present application.

FIG. 6 is a schematic structural diagram of a wireless charging module provided by an embodiment of the present application.

FIG. 7 is a schematic diagram of a fourth structure of a charging circuit provided by an embodiment of the present application.

FIG. 8 is a schematic diagram of a fifth structure of a charging circuit provided by an embodiment of the present application.

FIG. 9 is a schematic diagram of a sixth structure of a charging circuit provided by an embodiment of the present application.

FIG. 10 is a seventh schematic structural diagram of a charging circuit provided by an embodiment of the present application.

FIG. 11 is a schematic diagram of an eighth structure of a charging circuit provided by an embodiment of the present application.

FIG. 12 is a schematic diagram of a ninth structure of a charging circuit provided by an embodiment of the present application.

FIG. 13 is a tenth structural schematic diagram of a charging circuit provided by an embodiment of the present application.

FIG. 14 is an eleventh schematic structural diagram of a charging circuit provided by an embodiment of the present application.

FIG. 15 is a schematic flowchart of a charging method provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

Embodiments of the present application provide a charging circuit, an electronic device, and a charging method. The detailed descriptions will be given below. The charging circuit may be arranged in an electronic device, and the electronic device may be a smartphone, a tablet computer, or other devices.

Please refer to FIG. 1 , which is a schematic structural diagram of an electronic device provided by an embodiment of the present application. The electronic device 10 may include a housing 11 , a display screen 12 , a circuit board 13 , and a battery 14 . It should be noted that the electronic device 10 is not limited to the above contents.

Therein, the housing 11 may form the outer contour of the electronic device 10 . In some embodiments, the casing 11 may be a metal casing, such as magnesium alloy, stainless steel and other metals. It should be noted that the material of the housing 11 in the embodiment of the present application is not limited to this, and other methods may also be used, for example, the housing 11 may be a plastic housing, a ceramic housing, a glass housing, or the like.

Among them, the display screen 12 is installed in the casing 11 . The display screen 12 is electrically connected to the circuit board 13 to form a display surface of the electronic device 10 . In some embodiments, the display surface of the electronic device 10 may be provided with a non-display area, for example, the top or/and bottom end of the electronic device 10 may form a non-display area, that is, the electronic device 10 may be located at the upper or/and lower part of the display screen 12 A non-display area is formed, and the electronic device 10 may install devices such as cameras and receivers in the non-display area. It should be noted that the display surface of the electronic device 10 may not be provided with a non-display area, that is, the display screen 12 may be a full screen. The display screen can be laid on the entire display surface of the electronic device 10 , so that the display screen can be displayed in full screen on the display surface of the electronic device 10 . The display screen 12 may be in a regular shape, such as a rectangular parallelepiped structure or a rounded rectangle structure, and the display screen 12 may also be in an irregular shape.

The display screen 12 may be one or a combination of a liquid crystal display, an organic light emitting diode display, an electronic ink display, a plasma display, and a display using other display technologies. Display 12 may include an array of touch sensors (ie, display 12 may be a touch display). The touch sensor can be a capacitive touch sensor formed from an array of transparent touch sensor electrodes, such as indium tin oxide (ITO) electrodes, or can be a touch sensor formed using other touch technologies, such as sonic touch, pressure sensitive touch, resistive touch Touch, optical touch, etc., are not limited in the embodiments of the present application.

In some embodiments, a cover plate may be placed on the display screen 12 , and the cover plate may cover the display screen 12 to protect the display screen 12 . The cover plate can be a transparent glass cover plate, so that the display screen 12 can be displayed through the cover plate. In some embodiments, the cover plate may be a glass cover plate made of a material such as sapphire.

In some embodiments, after the display screen 12 is installed on the casing 11 , a storage space is formed between the casing 11 and the display screen 12 , and the storage space can accommodate components of the electronic device 10 , such as the circuit board 13 , the battery 14 , and the like.

The circuit board 13 is installed in the housing 11, and the circuit board 13 can be the main board of the electronic device 10. The circuit board 13 can integrate a motor, a microphone, a speaker, a headphone interface, a universal serial bus interface, a camera, a distance sensor, One, two or more of functional devices such as ambient light sensors, receivers, and processors.

In some embodiments, the circuit board 13 may be secured within the housing 11 . Specifically, the circuit board 13 can be screwed to the casing 11 by screws, or can be snap-fitted to the casing 11 by means of snaps. It should be noted that, the specific way of fixing the circuit board 13 to the housing 11 in the embodiment of the present application is not limited to this, and other ways, such as a way of co-fixing by a buckle and a screw, is also possible.

The battery 14 is installed in the housing 11 , and the battery 14 is electrically connected to the circuit board 13 to provide power to the electronic device 10 . The case 11 can serve as a battery cover for the battery 14 . The case 11 covers the battery 14 to protect the battery 14 and reduce damage to the battery 14 due to collision, drop, etc. of the electronic device 10 .

Please refer to FIG. 2 , which is a structural block diagram of an electronic device provided by an embodiment of the present application. Electronic device 10 may include storage and processing circuitry 131 , which may be integrated on circuit board 13 . Storage and processing circuitry 131 may include memory, such as hard drive memory, non-volatile memory (such as flash memory or other electronically programmable read-only memory used to form solid state drives, etc.), volatile memory (such as static or dynamic random access memory, etc.) memory, etc.), etc., which are not limited in the embodiments of the present application. Processing circuitry in storage and processing circuitry 131 may be used to control the operation of electronic device 10 . The processing circuit may be implemented based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio codec chips, application specific integrated circuits, display driver integrated circuits, and the like.

Storage and processing circuitry 131 may be used to run software in electronic device 10, such as Internet browsing applications, Voice over Internet Protocol (VOIP) phone calling applications, email applications, media playback applications, operating system functions Wait. These software can be used to perform some control operations, for example, camera-based image acquisition, ambient light measurement based on ambient light sensor, proximity sensor measurement based on proximity sensor, information based on status indicator implementation such as status indicators of light emitting diodes Display functions, touch sensor-based detection of touch events, functions associated with displaying information on multiple (eg, layered) displays, operations associated with performing wireless communication functions, operations associated with collecting and generating audio signals , control operations associated with collecting and processing button press event data, and other functions in the electronic device 10, etc., are not limited in the embodiments of the present application.

Electronic device 10 may include input-output circuitry 132 , which may be provided on circuit board 13 . The input-output circuit 132 may be used to enable the electronic device 10 to input and output data, ie, allowing the electronic device 10 to receive data from external devices and also allow the electronic device 10 to output data from the electronic device 10 to external devices. The input-output circuit 132 may further include a sensor 1321 . Sensors 1321 may include ambient light sensors, light and capacitance-based proximity sensors, touch sensors (eg, light-based touch sensors and/or capacitive touch sensors, where The touch sensor structure is used independently), acceleration sensor, temperature sensor, and other sensors.

The electronic device 10 may include an audio component 1322 , which may be disposed on the circuit board 13 . Audio component 1323 may be used to provide audio input and output functions for electronic device 10 . Audio components 1322 in electronic device 10 may include speakers, microphones, buzzers, tone generators, and other components for generating and detecting sound.

The electronic device 10 may include a communication circuit 1323 , and the communication circuit 1323 may be provided on the circuit board 13 . Communication circuitry 1323 may be used to provide electronic device 10 with the ability to communicate with external devices. Communication circuitry 1323 may include analog and digital input-output interface circuitry, and wireless communication circuitry based on radio frequency signals and/or optical signals. The wireless communication circuits in the communication circuit 1323 may include radio frequency transceiver circuits, power amplifier circuits, low noise amplifiers, switches and filters. For example, the wireless communication circuitry in the communication circuitry 1323 may include circuitry for supporting Near Field Communication (NFC) by transmitting and receiving near-field coupled electromagnetic signals. For example, the communication circuit 1323 may include a near field communication antenna and a near field communication transceiver. Communication circuitry 1323 may also include cellular telephone transceivers, wireless local area network transceiver circuitry, and the like.

Electronic device 10 may include power management circuitry and other input-output units 1324 . Input-output unit 1324 may include buttons, joysticks, click wheels, scroll wheels, touch pads, keypads, keyboards, cameras, light emitting diodes and other status indicators, and the like.

A user may input commands through the input-output circuit 132 to control the operation of the electronic device 10, and the output data of the input-output circuit 132 may be used to effect receiving status information and other output from the electronic device 10.

Electronic device 10 may include charging circuit 100 . The charging circuit 100 may charge the battery 14 of the electronic device 10 . The charging circuit 100 can charge the battery 14 by means of wired charging, and can also charge the battery 14 by means of wireless charging.

In order to further illustrate the charging process of the battery 14 by the charging circuit 100 in the embodiment of the present application, the electronic device 10 is described in detail below by using the charging circuit 100 as an example.

Please refer to FIG. 3 , which is a schematic diagram of a first structure of a charging circuit provided by an embodiment of the present application. The charging circuit 100 is connected to the battery 14 , and the charging circuit 100 is used for charging the battery 14 . The battery 14 has two charging terminals, which can be named as the first charging terminal 141 and the second charging terminal 142. The first charging terminal 141 and the second charging terminal 142 can be arranged at the same end of the battery 14, or can set at different ends. The charging circuit 100 may include: a wired charging circuit 110 and a wireless charging circuit 120 .

The input end of the wired charging circuit 110 is used to connect to the output end of the wired charger, and the output end of the wired charging circuit is connected to the first charging terminal 141 of the battery 14 . The wired charging circuit 110 can charge the battery 14 through the first charging terminal 141 .

Please refer to FIG. 4 , which is a schematic diagram of a second structure of a charging circuit provided by an embodiment of the present application. The wired charging circuit 110 may include a wired charging module 111 and a wired charging management chip 112 . The input end of the wired charging module 111 can be connected to the output end of the wired charger, the output end of the wired charging module 111 is connected to the input end of the wired charging management chip 112, and the output end of the wired charging management chip 112 is connected to the first charging end of the battery 14. Terminal 141 is connected.

It can be seen from this that when the user uses the wired charging module 111 to charge the battery 14, the wired charger and the wired charging module 111 can be plugged into each other. For example, the wired charger and the wired charging module 111 can be connected by plugging each other through the type-c interface. , so as to realize the purpose of charging the battery 14 by the wired charger through the wired charging module 111 and the wired charging management chip 112 .

In some embodiments, the number of wired charging management chips 112 may be one, or two or more. Please refer to FIG. 5 , which is a schematic diagram of a third structure of a charging circuit provided by an embodiment of the present application. The two wired charging management chips 112 are connected in parallel. The input signal and output signal of the two wired charging management chips 112 are the same, and the input current and output current of the two wired charging management chips 112 are the same, so as to realize the shunt, which can be reduced when the total power of the wired charging circuit 110 is kept unchanged. The power of the single wired charging management chip 112 reduces the heat of the single wired charging management chip 112 .

The output end of the wireless charging circuit 120 is connected to the second charging terminal 142 of the battery 14 . The wireless charging circuit 120 can charge the battery 14 through the second charging terminal 142 . As shown in FIG. 4 , the wireless charging circuit 120 may include a wireless charging module 121 and a wireless charging management chip 122. The output end of the wireless charging module 121 is connected to the input end of the wireless charging management chip 122, and the output end of the wireless charging management chip 122 is connected to the input end of the wireless charging management chip 122. The second charging terminal 142 of the battery 14 is connected.

Please refer to FIG. 6 , which is a schematic structural diagram of a wireless charging module provided by an embodiment of the present application. The wireless charging module 121 may include a wireless receiving coil 1211 , a matching circuit 1212 and a wireless conversion chip 1213 . The output end of the wireless receiving coil 1211 is connected with the input end of the matching circuit 1212 , the output end of the matching circuit 1212 is connected with the input end of the wireless conversion chip 1213 , and the output end of the wireless conversion chip 1213 is connected with the input end of the wireless charging management chip 122 .

The wireless receiving coil 1211 may be disposed on the inner surface of the casing 11 of the electronic device 10, the wireless receiving coil 1211 may be embedded in the casing 11, or a through hole may be formed on the casing 11, so as to set the receiving coil 1211 in the through hole. inside the hole. The matching circuit 1212 is used for tuning the signal received by the wireless receiving coil 1211 . The wireless conversion chip 1213 can convert the AC signal into a DC signal. The wireless conversion chip 1213 can also filter the signals it receives to filter out unwanted signals.

It can be seen from the above that when the user uses the wireless charging circuit 120 to charge the battery 14, the wireless charger can be aligned with the wireless receiving coil 1211, and the wireless receiving coil 1211 can receive the electromagnetic wave signal transmitted by the wireless charger through wireless reception. That is, the receiving end of the wireless receiving coil 1211 can receive the electromagnetic wave signal. Then, the wireless receiving coil 1211 can transmit the received electromagnetic wave signal to the wireless conversion chip 1213, and the wireless conversion chip 1213 can convert the electromagnetic wave signal into direct current through conversion, filtering, etc., and transmit it to the wireless charging management chip 122, and the wireless charging management chip 122 can use the converted and filtered direct current to charge the battery 14 through the second charging terminal 142 .

In this embodiment of the present application, the wired charging circuit 110 can charge the battery 14 through the first charging terminal 141 , and the wireless charging circuit 120 can charge the battery 14 through the second charging terminal 142 . The wired charging circuit 110 and the wireless charging circuit 120 are respectively connected to two different charging terminals of the battery 14, and can respectively charge the battery 14 individually or jointly charge the battery 14, thereby improving charging efficiency. In addition, compared to the fact that both the wired charging circuit 110 and the wireless charging circuit 120 are connected to the same charging terminal of the battery 14, even if one of the terminals of the battery 14 is damaged, the battery 14 can still be charged through the other charging terminal, which further improves the charging performance. efficiency.

It can be understood that, in the actual wireless charging process, for low-power wireless charging, for example, the power is less than 5w, due to the small power itself, the wireless receiving coil 1211, the wireless conversion chip 1213 and the wireless charging management chip 122 during the charging process. The heat is not serious, and it can continue to charge wirelessly with constant power. However, due to the low power, the charging speed is slower.

For high-power wireless charging, for example, the power is greater than 7.5w, or the power is greater than 10w, due to the large power, the charging speed is fast. In the actual wireless charging process, continuous wireless charging with this power for a period of time (such as ten minutes, or twenty minutes) will cause the wireless receiving coil 1211, the wireless conversion chip 1213 and the wireless charging management chip 122 to overheat, especially causing wireless If the charging management chip 122 is overheated, it is necessary to adopt an intermittent wireless charging method or reduce the charging power to cool down the wireless charging management chip 122 to ensure the safety of the charging process.

It should be noted that, in order to ensure that the battery 14 can be continuously charged under high power without using intermittent charging, there may be two or more wireless charging management chips 122 in this embodiment of the present application. Two or more wireless charging management chips 122 are connected in parallel, and the two or more wireless charging management chips 122 jointly charge the battery 14 . In the actual charging process, two or more wireless charging management chips 122 disperse heat from each other, greatly reducing the heat of a single wireless charging management chip 122, so that a single wireless charging management chip 122 can be ensured under the condition of ensuring high-power wireless charging. The temperature will not be too high, and the battery 14 can be continuously wirelessly charged in a high-power manner.

In some embodiments, there may be two wireless charging management chips 122, and the two wireless charging management chips 122 are connected in parallel. Please refer to FIG. 7 . FIG. 7 is a schematic diagram of a fourth structure of a charging circuit provided by an embodiment of the present application. The two wireless charging management chips 122 are connected in parallel, and the two wireless charging management chips 122 are respectively connected to the second charging terminals 142 of the battery 14 to jointly charge the battery 14 .

The models of the two wireless charging management chips 122 may be the same, and the input signals and output signals of the two wireless charging management chips 122 may be the same. In the actual wireless charging process, the input power and output power of the two wireless charging management chips 122 may be the same, for example, the input current and output current of the two wireless charging management chips 122 are the same, so as to realize the shunt, while maintaining the total power of the wired charging circuit 110 Under the same condition, the power of the single wired charging management chip 112 can be reduced, and the heat of the single wired charging management chip 112 can be reduced. The heating conditions of the two wireless charging management chips 122 may be the same, so as to avoid a situation in which one wireless charging management chip 122 generates serious heat while the other wireless charging management chip 122 does not generate heat.

It can be seen from the above that during the wireless charging process in the embodiment of the present application, the two wireless charging management chips 122 can disperse heat to each other, which can ensure that in the case of continuous high-power charging, a single wireless charging management chip 122 will not overheat, ensuring that the charging circuit 100 security.

It should be noted that the number of the wireless charging management chips 122 in the embodiment of the present application is not limited to this. Please refer to FIG. 8 , which is a fifth schematic structural diagram of the charging circuit provided by the embodiment of the present application. The number of wireless charging management chips 122 may be three, and the three wireless charging management chips 122 are connected in parallel. The three wireless charging management chips 122 are respectively connected to the second charging terminal 142 , and the three wireless charging management chips 122 can jointly charge the battery 14 . A higher power can be achieved to charge the battery 14, such as a power of 15w.

It should be noted that, the number of wireless charging management chips 122 may be four or more. I won't go into details here.

Please refer to FIG. 9 . FIG. 9 is a schematic diagram of a sixth structure of a charging circuit provided by an embodiment of the present application. The charging circuit 100 may include a controller 130 , the output end of the controller 130 , or the control end of the controller 130 may be connected to the wireless conversion chip 1213 , the wireless charging management chip 122 and the wired charging management chip 112 in the wireless charging module 121 respectively. . The controller 130 can control the wireless conversion chip 1213 , the wireless charging management chip 122 and the wired charging management chip 112 to work.

The controller 130 may be the storage and processing circuit 131 of the electronic device 10 , for example, the controller 130 may be the processor of the electronic device 10 . It should be noted that, the controller 130 may also be separately integrated into the main board of the electronic device 10 .

Please refer to FIG. 10 . FIG. 10 is a seventh schematic structural diagram of a charging circuit provided by an embodiment of the present application. The charging circuit 100 may include a first detection module 1121 and a second detection module 1221 .

The wired charging circuit 110 includes a first detection module 1121, and the first detection module 1121 can be integrated in the wired charging management chip 112. It should be noted that the first detection module 1121 may not be integrated in the wired charging management chip 112. Please refer to FIG. 11, which is an eighth schematic structural diagram of the charging circuit provided by the embodiment of the present application. The first detection module 1121 may be connected between the wired charging management chip 112 and the first charging terminal 141.

The first detection module 1121 is used to detect the state of the first charging terminal 141, and the state of the first charging terminal 141 may include a normal state and an abnormal state. The first detection module 1121 can detect the charging current between the wired charging circuit 110 and the battery 14 , and the first detection module 1121 can also detect the connection relationship between the wired charging circuit 110 and the battery 14 . The normal state of the first charging terminal 141 may be that the charging current of the wired charging circuit 110 and the battery 14 is normal, or that the wired charging circuit 110 and the battery 14 are connected normally. The abnormal state of the first charging terminal 141 may be that the charging current of the wired charging circuit 110 and the battery 14 is abnormal, for example, the charging current is too large, or there is no charging current; it may also be that the connection between the wired charging circuit 110 and the battery 14 is abnormal, it is better to connect disconnect.

In some embodiments, when the first detection module 1121 detects that the first charging terminal 141 is in a normal state, the controller 130 may control the wired charging circuit 110 to charge the battery 14 . When the first detection module 1121 detects that the first charging terminal 141 is in an abnormal state, the controller 130 may control the wired charging circuit 110 to disconnect from the battery 14 . The controller 130 can also control the communication circuit 1323 of the electronic device 10 to send an alarm signal, such as sending the alarm information to the display screen 12 for display, or sending the alarm information to make a sound through a speaker to inform the user that the first charging terminal 141 is abnormal.

The wireless charging circuit 120 includes a second detection module 1221 , and the second detection module 1221 may be integrated into one of the wireless charging management chips 122 . It should be noted that the second detection module 1221 may not be integrated in the wireless charging management chip 122 . As shown in FIG. 11 , the second detection module 1221 may be connected between the wireless charging management chip 122 and the second charging terminal 142 .

The second detection module 1221 is used to detect the state of the second charging terminal 142, and the state of the second charging terminal 142 may include a normal state and an abnormal state. The second detection module 1221 can detect the charging current between the wireless charging circuit 120 and the battery 14 , and the second detection module 1221 can also detect the connection relationship between the wireless charging circuit 120 and the battery 14 . The normal state of the second charging terminal 142 may be that the charging current of the wireless charging circuit 120 and the battery 14 is normal, or the connection between the wireless charging circuit 120 and the battery 14 may be normal. The abnormal state of the second charging terminal 142 may be that the charging current of the wireless charging circuit 120 and the battery 14 is abnormal, for example, the charging current is too large, or there is no charging current; it may also be that the connection between the wireless charging circuit 120 and the battery 14 is abnormal, and it is better to connect disconnect.

In some embodiments, when the second detection module 1221 detects that the second charging terminal 142 is in a normal state, the controller 130 may control the wireless charging circuit 120 to charge the battery 14 . When the second detection module 1221 detects that the second charging terminal 142 is in an abnormal state, the controller 130 may control the wireless charging circuit 120 to disconnect from the battery 14 . The controller 130 can also control the communication circuit 1323 of the electronic device 10 to send an alarm signal, such as sending the alarm information to the display screen 12 for display, or sending the alarm information to make a sound through a speaker to inform the user that the second charging terminal 142 is abnormal.

It should be noted that, the charging circuit 100 may only be provided with the first detection module 1121 without the second detection module 1221 . The charging circuit 100 may only be provided with the second detection module 1221 without the first detection module 1121 .

As can be seen from the above, in this embodiment of the present application, the state of the first charging terminal 141 can be detected by the first detection module 1121, and the state of the second charging terminal 142 can be detected by the second detection module 1221. The controller 130 can detect the state of the second charging terminal 142 according to the first detection module 1221. 1121 and the detection results of the second detection module 1221 control the wired charging circuit 110 and the wireless charging circuit 120 to charge the battery 14 . Even if it is detected that one of the charging terminals of the battery 14 is abnormal, the battery 14 can still be charged through the other charging terminal of the battery 14, which can improve the charging efficiency.

The above is the embodiment of the present application where the wired charging circuit 110 and the wireless charging circuit 120 are respectively connected to the two charging terminals of the battery 14 to charge the battery 14 respectively. Once one of the charging terminals is damaged, the battery 14 can also be charged through the other terminal. . For example, if the first charging terminal 141 is damaged, the wireless charging circuit 120 can charge the battery 14 through the second charging terminal 142 . For another example, if the second charging terminal 142 is damaged, the wired charging circuit 110 can charge the battery 14 through the first charging terminal 141.

It should be noted that when the charging terminal of the battery 14 is damaged, the battery 14 can only be charged by the wired charging circuit 110 or the wireless charging circuit 120 , and the selectivity of charging the battery 14 by the charging circuit 100 is reduced. To this end, in this embodiment of the present application, a regulation circuit may be added to the charging circuit 100 for regulation.

Please refer to FIG. 12 . FIG. 12 is a ninth structural schematic diagram of a charging circuit provided by an embodiment of the present application. The charging circuit 100 may include a wired charging circuit 110 , a wireless charging circuit 120 , a controller 130 and a regulating circuit 140 . The wired charging circuit 110 may refer to the above wired charging circuit 110 . The wireless charging circuit 120 may refer to the above wireless charging circuit 120 . The controller 130 may refer to the above controller 130 .

The regulation circuit 140 has two input terminals, two output terminals and a control terminal. The first input end of the control circuit 140 is connected to the output end of the wired charging circuit 110 , the second input end of the control circuit 140 is connected to the output end of the wireless charging circuit 120 , and the first output end of the control circuit 140 is connected to the first end of the battery 14 . The charging terminal 141 is connected, the second output terminal of the regulation circuit 140 is connected to the second charging terminal 142 of the battery 14 , and the control terminal of the regulation circuit 140 is connected to the output terminal of the controller 130 . In some embodiments, the controller 130 may control the regulation circuit 140 to control the wired charging circuit 110 and the wireless charging circuit 120 to connect with the battery 14 through the regulation circuit 140 . The regulation circuit 140 is used for connecting the output end of the wired charging circuit 110 with the first output end or the second output end of the regulation circuit 140 . The regulation circuit 140 is also used for connecting the output end of the wireless charging circuit 120 with the first output end or the second output end of the regulation circuit 140 .

Specifically, the first input end of the regulation circuit 140 is connected to the output end of the wired charging management chip 112 , and the second input end of the regulation circuit 140 is connected to the output end of the wireless charging management chip 122 . In some embodiments, the regulation circuit 140 is used to connect the output end of the wired charging management chip 112 with the first output end or the second output end of the regulation circuit 140 . The regulation circuit 140 is also used for connecting the output end of the wireless charging management chip 122 with the first output end or the second output end of the regulation circuit 140 .

Please refer to FIG. 13 , which is a tenth structural schematic diagram of the charging circuit provided by the embodiment of the present application. The charging circuit 100 may further include a detection unit 150 , and the detection unit 150 may be integrated in the regulation circuit 140 . The detection unit 150 is used to detect the state of the first charging terminal 141 , and the detection unit 150 is used to detect the state of the second charging terminal 142 . The state of the first charging terminal 141 may refer to the above content. The state of the second charging terminal 142 can refer to the above content.

When the detection unit 150 detects that both the first charging terminal 141 and the second charging terminal 142 are in a normal state, the detection unit 150 can transmit the detected signal to the controller 130, and the controller 130 can drive the regulation circuit 140 to control the first input The terminal is connected with the first output terminal, and the second input terminal is controlled to be connected with the two output terminals. Therefore, the wired charging circuit 110 can be connected to the first charging terminal 141 through the regulating circuit 140, and the wireless charging circuit 120 can be connected to the second charging terminal 142 through the regulating circuit 140.

It should be noted that when the detection unit 150 detects that the first charging terminal 141 and the second charging terminal 142 are both in a normal state, the controller 130 can also drive the regulating circuit 140 to control the first input terminal and the second output terminal to be connected, and The second input terminal is controlled to communicate with the first output terminal. Therefore, the wired charging circuit 110 can be connected to the second charging terminal 142 through the regulation circuit 140 , and the wireless charging circuit 120 can be connected to the first charging terminal 141 through the regulation circuit 140 .

When the detection unit 150 detects that the first charging terminal 141 is in a normal state and detects that the second charging terminal 142 is in an abnormal state, the detection unit 150 can transmit the detected signal to the controller 130, and the controller 130 can drive the regulation circuit 140 controls the first input end to be connected with the first output end, and controls the second input end to be disconnected from the second output end. Or the controller 130 can drive the regulating circuit 140 to control the second input terminal to be connected to the first output terminal, and to control the first input terminal to be disconnected from the second output terminal. For example, when the detection unit 150 detects that the first charging terminal 141 is normal and the second charging terminal 142 is damaged, the controller 130 can drive the regulation circuit 140 to transmit the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 through the first output. The terminal is connected to the first charging terminal 141 to charge the battery 14 . It should be noted that when the wired charging circuit 110 and the wireless charging circuit 120 charge the battery 14 at the same time, the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 can be jointly flowed to the first charging terminal 141 to charge the battery 14, and also One of the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 may be flowed to the first charging terminal 141 to charge the battery.

When the detection unit 150 detects that the first charging terminal 141 is in an abnormal state and detects that the second charging terminal 142 is in a normal state, the detection unit 150 can transmit the detected signal to the controller 130, and the controller 130 can drive the regulation circuit 140 controls the first input end to be disconnected from the first output end, and controls the second input end to be connected to the second output end. The controller 130 can drive the regulation circuit 140 to control the second input end to be disconnected from the first output end, and to control the first input end to be connected to the second output end. For example, when the detection unit 150 detects that the first charging terminal 141 is damaged and the second charging terminal 142 is normal, the controller 130 can drive the regulation circuit 140 to transmit the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 through the second output. The terminal is connected to the second charging terminal 142 to charge the battery 14 . It should be noted that when the wired charging circuit 110 and the wireless charging circuit 120 charge the battery 14 at the same time, the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 can be jointly flowed to the second charging terminal 142 to charge the battery 14, and also One of the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 may be flowed to the second charging terminal 142 to charge the battery.

It can be seen from this that even if one charging terminal of the battery 14 is damaged, the wired charging circuit 110 and the wireless charging circuit 120 can charge the battery 14 through the other charging terminal of the battery 14 .

It can be understood that when the detection unit 150 detects that the first charging terminal 141 is in an abnormal state and detects that the second charging terminal 142 is in an abnormal state, the detection unit 150 can transmit the detected signal to the controller 130, and the controller 130 can drive the regulating circuit 140 to control the first input terminal or the second input terminal to be disconnected from the first output terminal, and to control the first input terminal and the second input terminal to be disconnected from the second output terminal. For example, when the detection unit 150 detects that the first charging terminal 141 is damaged and the second charging terminal 142 is damaged, the controller 130 can drive the regulating circuit 140 to disconnect the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 . Further, a warning signal can be sent to be displayed on the display screen 12, or a warning signal can be sent to sound through a speaker to notify the user.

It should be noted that the detection unit 150 may not be disposed on the regulation circuit 140 . Please refer to FIG. 14 . FIG. 14 is an eleventh schematic structural diagram of a charging circuit provided by an embodiment of the present application. The detection unit may include a first detection unit 151 and a second detection unit 152. The first detection unit 151 is connected to the first output terminal of the regulation circuit 140 and the first charging terminal 141. The first detection unit 151 may detect the first charging terminal 141. status. The second detection unit 152 is connected between the second output terminal of the regulation circuit 140 and the second charging terminal 152 , and the second detection unit 152 can detect the state of the second charging terminal 142 .

It should also be noted that the detection unit 150 may also be integrated in the wireless charging management chip 122 . The detection unit 150 may also be integrated in the effective charge management chip 112 . There may be multiple detection units 150 , one detection unit 150 is integrated in each wired charging management chip 112 , and one detection unit is integrated in each wireless charging management chip 122 .

Please refer to FIG. 15 , which is a schematic flowchart of a charging method provided by an embodiment of the present application. The charging method is applied to an electronic device, wherein the electronic device can refer to the above electronic device 10 , the electronic device 10 includes a charging circuit 100 and a battery 14 , and the charging circuit board 100 can charge the battery 14 . The charging circuit 100 can refer to the above charging circuit 100 ; the battery 14 can refer to the above battery 14 . Charging methods include:

201. Detect the state of the first charging terminal 141 and the state of the second charging terminal 142.

The state of the first charging terminal 141 can be detected by the wired charging management chip 112 of the wired charging circuit 110 , and the state of the second charging terminal 142 can be detected by the wireless charging management chip 122 of the wireless charging circuit 120 to obtain the detection result. The state of the first charging terminal 141 and the state of the second charging terminal 142 may also be detected by the detection unit 150 to obtain the detection result. The detection unit 150 can refer to the above content.

202. Determine whether the state of the first charging terminal and the state of the second charging terminal are abnormal.

The wired charging management chip 112 of the wired charging circuit 110 can detect the state of the first charging terminal 141 and obtain the detection result, and can determine whether the state of the first charging terminal 141 is abnormal according to the detection result. The wireless charging management chip 122 of the wireless charging circuit 120 can detect the state of the second charging terminal 142 and obtain the detection result, and can determine whether the state of the second charging terminal 142 is abnormal according to the detection result. The detection unit 150 detects the state of the first charging terminal 141 and the state of the second charging terminal 142 to obtain a detection result, and can determine whether the states of the first charging terminal 141 and the second charging terminal 142 are abnormal according to the detection result.

After the detection result is obtained, the detection result may be transmitted to the controller 130 . The controller 130 may be a processor of the electronic device 10 , and the controller 130 may also be directly integrated on the charging circuit 100 . The controller 130 may obtain the detection result of the first charging terminal 141 from the wired charging management chip 112 , the controller 130 may obtain the detection result of the second charging terminal 142 from the wireless charging management chip 122 , and the controller 130 may obtain the detection result of the second charging terminal 142 from the detection unit 150 . The detection result of the first charging terminal 141 and the detection result of the second charging terminal 142 are obtained.

The controller 130 can control the charging mode according to the obtained detection result. When the detection result is that the first charging terminal 141 is in a normal state and the second charging terminal 142 is in a normal state, execute 203 . When the detection result is that the first charging terminal 141 is in a normal state and the second charging terminal 142 is in an abnormal state, execute 204. When the detection result is that the first charging terminal 141 is in an abnormal state and the second charging terminal 142 is in an abnormal state, execute 205 .

203 , if the first charging terminal 141 is in a normal state and the second charging terminal 142 is in a normal state, the controller 130 can drive the regulating circuit 140 to control the first input terminal to communicate with the first output terminal, and the controller 130 can drive the regulating circuit 140 to communicate with the first output terminal. The circuit 140 controls the second input terminal to communicate with the second output terminal.

Therefore, the wired charging circuit 110 can be connected to the first charging terminal 141 through the regulation circuit 140 , and the wireless charging circuit 120 can be connected to the second charging terminal 142 through the regulation circuit 140 . It should be noted that, the controller 130 can also drive the regulating circuit 140 to control the first input end and the second output end to communicate with each other, and control the second input end and the first output end to communicate with each other.

204 , if the first charging terminal 141 is in a normal state and the second charging terminal 142 is in an abnormal state, the controller 130 can drive the regulating circuit 140 to control the first input terminal to communicate with the first output terminal, and the controller 130 can drive the regulating circuit 140 to communicate with the first output terminal. The circuit 140 controls the second input terminal to be disconnected from the second output terminal.

Or the controller 130 can drive the regulating circuit 140 to control the second input terminal to be connected to the first output terminal, and to control the first input terminal to be disconnected from the second output terminal. For example, when the detection unit 150 detects that the first charging terminal 141 is normal and the second charging terminal 142 is damaged, the controller 130 can drive the regulation circuit 140 to transmit the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 through the first output The terminal is connected to the first charging terminal 141 to charge the battery 14 . It should be noted that when the wired charging circuit 110 and the wireless charging circuit 120 charge the battery 14 at the same time, the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 can be jointly flowed to the first charging terminal 141 to charge the battery 14, and also One of the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 may be flowed to the first charging terminal 141 to charge the battery.

205 , if the first charging terminal 141 is in an abnormal state and the second charging terminal 142 is in an abnormal state, the controller 130 can drive the regulating circuit 140 to control the first input terminal and the second input terminal to be disconnected from the first output terminal, and The controller 130 can drive the regulating circuit 140 to control the first input terminal and the second input terminal to be disconnected from the second output terminal.

For example, when the detection unit 150 detects that the first charging terminal 141 is damaged and the second charging terminal 142 is damaged, the controller 130 can drive the regulating circuit 140 to disconnect the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 . Further, a warning signal can be sent to be displayed on the display screen 12, or a warning signal can be sent to sound through a speaker to notify the user.

The detection unit 150 may refer to the above content, for example, it includes a first detection unit 151 and a second detection unit 152, and details are not repeated here.

Claims (13)

1. A charging circuit, applied to electronic equipment, wherein the electronic equipment comprises a battery, and the charging circuit comprises a wired charging circuit, a wireless charging circuit and a regulation circuit; a wireless charging circuit, the wireless charging circuit includes a wireless charging module and at least two parallel wireless charging management chips, the input ends of the at least two wireless charging management chips are all connected to the output end of the wireless charging module; A wired charging circuit, the wired charging circuit includes a wired charging module and a wired charging management chip, the input end of the wired charging module is used to connect to the output end of the wired charger, and the output end of the wired charging module is connected to the wired charging The input terminal connection of the management chip; a regulation circuit, the first input end of the regulation circuit is connected with the output end of the wired charging management chip, the second input end of the regulation circuit is connected with the output ends of the at least two wireless charging management chips, the The first output end of the regulation circuit is connected to the first charging terminal of the battery, and the second output end of the regulation circuit is connected to the second charging terminal of the battery; wherein: The regulation circuit is used to connect the output end of the wired charging management chip with the first output end of the regulation circuit or the second output end of the regulation circuit; The regulation circuit is further configured to connect the output ends of the at least two wireless charging management chips with the first output end of the regulation circuit or the second output end of the regulation circuit. 2 . The charging circuit according to claim 1 , wherein the charging circuit comprises a detection unit, the detection unit is connected to the regulation circuit, and the detection unit is used to detect the state of the first charging terminal. 3 . and the state of the second charging terminal; When the detection unit detects that the first charging terminal is in a normal state, and when the detection unit detects that the second charging terminal is in a normal state, the regulating circuit controls the first input terminal and the The first output end is connected, and the regulating circuit controls the second input end to communicate with the second output end. 3 . The charging circuit according to claim 1 , wherein the charging circuit comprises a detection unit, the detection unit is connected to the regulation circuit, and the detection unit is used to detect the state of the first charging terminal. 4 . and the state of the second charging terminal; When the detection unit detects that the first charging terminal is in a normal state, and when the detection unit detects that the second charging terminal is in an abnormal state, the regulating circuit controls the first input terminal and the The first output end is connected, and the regulating circuit controls the second input end to be disconnected from the second output end. 4 . The charging circuit according to claim 1 , wherein the charging circuit comprises a detection unit, the detection unit is connected to the regulation circuit, and the detection unit is used to detect the state of the first charging terminal. 5 . and the state of the second charging terminal; When the detection unit detects that the first charging terminal is in an abnormal state, and when the detection unit detects that the second charging terminal is in an abnormal state, the regulating circuit controls the first input terminal and the second charging terminal. The input end is disconnected from the first output end, and the regulating circuit controls the first input end and the second input end to be disconnected from the second output end. 5 . The charging circuit according to claim 2 , wherein the detection unit is integrated on the regulation circuit. 6 . 6. The charging circuit according to any one of claims 2 to 4, wherein the detection unit comprises a first detection unit and a second detection unit, and the first detection unit is connected to the regulation circuit and the between the first charging terminals, and the second detection unit is connected between the regulating circuit and the second charging terminals. 7. The charging circuit according to any one of claims 2 to 4, wherein the detection unit is integrated in the wired charging management chip; or The detection unit is integrated in one of the at least two wireless charging management chips; or There are two detection units, one of the two detection units is integrated in the wired charging management chip, and the other detection unit of the two detection units is integrated into the at least two detection units. in one of the wireless charging management chips. 8 . The charging circuit according to claim 1 , wherein two wireless charging management chips in the at least two wireless charging management chips have the same input signal and the same output signal. 9 . 9 . The charging circuit according to claim 1 , wherein there are at least two wired charging management chips, and the at least two wired charging management chips are connected in parallel. 10 . 10 . The charging circuit according to claim 1 , wherein the wireless charging module comprises a wireless receiving coil and a wireless conversion chip, the wireless receiving coil is used for receiving wireless signals, and the wireless receiving The coil is connected with the wireless conversion chip, and the wireless conversion chip is connected with the wireless charging management chip. 11. The charging circuit according to any one of claims 1 to 4, wherein the two charging terminals of the battery are located at the same end of the battery, respectively. 12. An electronic device, comprising a charging circuit, wherein the charging circuit is the charging circuit according to any one of claims 1 to 11. 13. A charging method applied to an electronic device, wherein the electronic device comprises a charging circuit and a battery, the charging circuit comprises a wired charging circuit, a wireless charging circuit and a regulation circuit, and the wireless charging circuit comprises a wireless charging circuit module and at least two parallel wireless charging management chips, the input ends of the at least two wireless charging management chips are connected to the output end of the wireless charging module; the wired charging circuit includes a wired charging module and a wired charging management chip , the input end of the wired charging module is used to connect the output end of the wired charger, the output end of the wired charging module is connected to the input end of the wired charging management chip; the first input end of the control circuit is connected to the The output end of the wired charging management chip is connected, the second input end of the regulation circuit is connected to the output end of the at least two wireless charging management chips, and the first output end of the regulation circuit is connected to the first output end of the battery. the charging terminal is connected, and the second output end of the regulating circuit is connected with the second charging terminal of the battery; The charging method includes: detecting the state of the first charging terminal and the state of the second charging terminal; Determine whether the state of the first charging terminal and the state of the second charging terminal are abnormal; If the first charging terminal is in a normal state and the second charging terminal is in a normal state, the control circuit controls the first input terminal to communicate with the first output terminal, and the control circuit controls the communication between the first input terminal and the first output terminal. controlling the second input end to communicate with the second output end; If the first charging terminal is in a normal state and the second charging terminal is in an abnormal state, the regulating circuit controls the first input terminal to communicate with the first output terminal, and the regulating circuit controls the communication between the first input terminal and the first output terminal. controlling the second input terminal to be disconnected from the second output terminal; If the first charging terminal is in an abnormal state and the second charging terminal is in an abnormal state, the control circuit controls the first input terminal and the second input terminal to be disconnected from the first output terminal, And the control circuit controls the first input terminal and the second input terminal to disconnect from the second output terminal.

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