CN109217487B

CN109217487B - Charging circuit and electronic device

Info

Publication number: CN109217487B
Application number: CN201811020573.5A
Authority: CN
Inventors: 武小勇
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-09-03
Filing date: 2018-09-03
Publication date: 2020-04-10
Anticipated expiration: 2038-09-03
Also published as: CN109217487A

Abstract

The embodiment of the application provides a charging circuit and electronic equipment, wherein the electronic equipment comprises a battery, the battery comprises a first charging terminal and a second charging terminal, and the charging circuit comprises a wired charging circuit and a wireless charging circuit; the input end of the wired charging circuit is used for being connected with the output end of a wired charger, the output end of the wired charging circuit is connected with the first charging terminal, and the output end of the wireless charging circuit is connected with the second charging terminal. The embodiment of the application can improve the charging efficiency.

Description

Charging circuit and electronic device

Technical Field

The present disclosure relates to electronic technologies, and particularly to a charging circuit and an electronic device.

Background

With the development of electronic technology, wireless charging technology is beginning to be applied to terminals slowly, for example: a terminal including a battery, such as a mobile phone, a tablet computer or a remote control device. Because the terminal does not need to be connected with a power supply through a wire in the wireless charging process, the terminal is charged at different positions by using the wireless charger. Wireless charging and wired charging are generally separated to charge the battery, charging the same terminal of the battery during the actual charging process. Because wireless charging power is little, if increase power will lead to wireless charging to generate heat seriously, threaten the safety of charging circuit and battery, in case cause the circuit to generate heat seriously and damage charging circuit because of wireless charging, can lead to whole charging circuit to damage.

Disclosure of Invention

The embodiment of the application provides a charging circuit and an electronic device, which can improve the charging efficiency of a battery.

The embodiment of the application provides a charging circuit, which is applied to electronic equipment, wherein the electronic equipment comprises a battery, the battery comprises a first charging terminal and a second charging terminal, and the charging circuit comprises a wired charging circuit and a wireless charging circuit;

the input end of the wired charging circuit is used for being connected with the output end of a wired charger, the output end of the wired charging circuit is connected with the first charging terminal, and the output end of the wireless charging circuit is connected with the second charging terminal.

The embodiment of the application provides an electronic device, which comprises a charging circuit, wherein the charging circuit is the charging circuit.

In the embodiment of the application, the wired charging circuit is connected with one charging terminal of the battery, the wired charging circuit can charge the battery independently, the wireless charging circuit is connected with the other charging terminal of the battery, and the wireless charging circuit can charge the battery independently. The wired charging circuit and the wireless charging circuit can charge the battery together, and charging efficiency can be improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 2 is a block diagram of an electronic device according to an embodiment of the present disclosure.

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

Fig. 4 is a second structural schematic diagram of a charging circuit according to an embodiment of the present disclosure.

Fig. 5 is a schematic diagram of a third structure of a charging circuit according to an embodiment of the present disclosure.

Fig. 6 is a schematic structural diagram of a wireless charging module according to an embodiment of the present application.

Fig. 7 is a fourth structural schematic diagram of a charging circuit according to an embodiment of the present disclosure.

Fig. 8 is a fifth structural schematic diagram of a charging circuit according to an embodiment of the present disclosure.

Fig. 9 is a sixth structural schematic diagram of a charging circuit according to an embodiment of the present application.

Fig. 10 is a seventh structural schematic diagram of a charging circuit according to an embodiment of the present application.

Fig. 11 is an eighth schematic structural diagram of a charging circuit according to an embodiment of the present application.

Fig. 12 is a ninth structural schematic diagram of a charging circuit according to an embodiment of the present application.

Fig. 13 is a tenth structural schematic diagram of a charging circuit according to an embodiment of the present application.

Fig. 14 is an eleventh structural schematic diagram of a charging circuit according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The embodiment of the application provides a charging circuit and an electronic device. The details will be described below separately. The charging circuit can be arranged in the electronic device, and the electronic device can be a smart phone, a tablet computer and the like.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 10 may include a housing 11, a display 12, a circuit board 13, and a battery 14. It should be noted that the electronic device 10 is not limited to the above.

Wherein the housing 11 may form an outer contour of the electronic device 10. In some embodiments, the housing 11 may be a metal housing, such as a metal such as magnesium alloy, stainless steel, and the like. 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 manners may also be adopted, such as: the housing 11 may be a plastic housing, a ceramic housing, a glass housing, etc.

Wherein the display screen 12 is mounted in the housing 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 non-display areas, such as: the top end or/and the bottom end of the electronic device 10 may form a non-display area, that is, the electronic device 10 forms a non-display area on the upper portion or/and the lower portion of the display 12, and the electronic device 10 may mount a camera, a receiver, and the like on the non-display area. Note that the display surface of the electronic device 10 may not be provided with the non-display area, that is, the display 12 may be a full-screen. The display screen may be laid over the entire display surface of the electronic device 10, so that the display screen can be displayed in a full screen on the display surface of the electronic device 10.

The display 12 may be in a regular shape, such as a rectangular parallelepiped structure or a rounded rectangular structure, and the display 12 may also be in an irregular shape.

The display 12 may be one or a combination of liquid crystal display, organic light emitting diode display, electronic ink display, plasma display, and display using other display technologies. The display screen 12 may include an array of touch sensors (i.e., the display screen 12 may be a touch display screen). The touch sensor may be a capacitive touch sensor formed by a transparent touch sensor electrode (e.g., an Indium Tin Oxide (ITO) electrode) array, or may be a touch sensor formed using other touch technologies, such as acoustic wave touch, pressure sensitive touch, resistive touch, optical touch, and the like, and the embodiments of the present application are not limited thereto.

It should be noted that, in some embodiments, a cover plate may be disposed on the display 12, and the cover plate may cover the display 12 to protect the display 12. The cover may be a clear glass cover so that the display 12 is shown through the cover. 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 12 is mounted on the housing 11, a receiving space is formed between the housing 11 and the display 12, and the receiving space can receive components of the electronic device 10, such as the circuit board 13, the battery 14, and the like.

The circuit board 13 is mounted in the housing 11, the circuit board 13 may be a main board of the electronic device 10, and one, two or more functional devices of a motor, a microphone, a speaker, an earphone interface, a universal serial bus interface, a camera, a distance sensor, an ambient light sensor, a receiver, a processor, and the like may be integrated on the circuit board 13.

In some embodiments, the circuit board 13 may be fixed within the housing 11. Specifically, the circuit board 13 may be screwed to the housing 11 by screws, or may be snap-fitted to the housing 11. It should be noted that the way of fixing the circuit board 13 to the housing 11 is not limited to this, and other ways, such as a way of fixing by a snap and a screw, may also be used.

Wherein a battery 14 is mounted in the housing 11, and the battery 11 is electrically connected to the circuit board 13 to supply power to the electronic device 10. The housing 11 may serve as a battery cover for the battery 14. The case 11 covers the battery 14 to protect the battery 14, reducing damage to the battery 14 due to collision, dropping, and the like of the electronic apparatus 10.

Referring to fig. 2, fig. 2 is a block diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 10 may include a storage and processing circuit 131, and the storage and processing circuit 131 may be integrated on the circuit board 13. The storage and processing circuit 131 may include a memory, such as a hard disk drive memory, a non-volatile memory (e.g., a flash memory or other electronically programmable read only memory used to form a solid state drive, etc.), a volatile memory (e.g., a static or dynamic random access memory, etc.), and so on, and embodiments of the present application are not limited thereto. Processing circuitry in the storage and processing circuitry 131 may be used to control the operation of the electronic device 10. The processing circuitry 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.

The storage and processing circuit 131 may be used to run software in the electronic device 10 such as an Internet browsing application, a Voice Over Internet Protocol (VOIP) phone call application, an email application, a media playing application, operating system functions, etc. Such software may be used to perform control operations such as, for example, camera-based image capture, ambient light measurement based on an ambient light sensor, proximity sensor measurement based on a proximity sensor, information display functionality based on status indicators such as status indicator lights of light emitting diodes, touch event detection based on a touch sensor, functionality associated with displaying information on multiple (e.g., 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, and the like, without limitation of the embodiments of the present application.

The electronic device 10 may include input-output circuitry 132, and the input-output circuitry 132 may be disposed on the circuit board 13. The input-output circuitry 132 may be used to enable the electronic device 10 to enable the input and output of data, i.e., to allow the electronic device 10 to receive data from external devices and also to 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. The sensors 1321 can include ambient light sensors, optical and capacitive based proximity sensors, touch sensors (e.g., optical based touch sensors and/or capacitive touch sensors, where the touch sensors can be part of a touch display screen or used independently as a touch sensor structure), acceleration sensors, temperature sensors, and other sensors, among others.

The electronic device 10 may include audio components 1322, and the audio components 1322 may be disposed on the circuit board 13. Audio component 1323 may be used to provide audio input and output functionality 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 communications circuitry 1323, and the communications circuitry 1323 may be disposed on the circuit board 13. The communications circuitry 1323 may be used to provide the electronic device 10 with the ability to communicate with external devices. The 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 circuitry in communication circuitry 1323 may include radio-frequency transceiver circuitry, power amplifier circuitry, low noise amplifiers, switches, and filters. For example, the wireless Communication circuitry in Communication circuitry 1323 may include circuitry to support Near Field Communication (NFC) by transmitting and receiving Near Field coupled electromagnetic signals. For example, the communication circuitry 1323 may include a near field communication antenna and a near field communication transceiver. Communications circuitry 1323 may also include cellular telephone transceiver, wireless local area network transceiver circuitry, and the like.

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

A user may enter commands through the input-output circuitry 132 to control the operation of the electronic device 10, and may use the output data of the input-output circuitry 132 to enable receipt of status information and other outputs from the electronic device 10.

The electronic device 10 may include a charging circuit 100. The charging circuit 100 may charge the battery 14 of the electronic device 100. The charging circuit 100 may charge the battery 14 by wired charging or may charge the battery 14 by wireless charging.

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

Referring to fig. 3, fig. 3 is a first structural schematic diagram of a charging circuit according to an embodiment of the present disclosure. The charging circuit 100 is connected to the battery 14, and the charging circuit 100 is used for charging the battery 14. Here, the battery 14 has two charging terminals, which may be named as a first charging terminal 141 and a second charging terminal 142, and the first charging terminal 141 and the second charging terminal 142 may be disposed at the same end portion or different end portions of the battery 14. The charging circuit 100 may include: a wired charging circuit 110 and a wireless charging circuit 120.

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

Referring to fig. 4, fig. 4 is a second structural schematic diagram of a charging circuit according to an embodiment of the present disclosure. The wired charging circuit 110 may include a wired charging module 111 and a wired charging management chip 112. The input terminal of the wired charging module 111 may be connected to the output terminal of the wired charger, the output terminal of the wired charging module 111 is connected to the input terminal of the wired charging management chip 112, and the output terminal of the wired charging management chip 112 is connected to the first charging terminal 141 of the battery 14.

Therefore, 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 are plugged into each other through a type-c interface to achieve connection, so as to achieve the purpose that the wired charger charges the battery 14 through the wired charging module 111 and the wired charging management chip 112.

In some embodiments, there may be one or two or more wired charging management chips 112. Referring to fig. 5, fig. 5 is a schematic diagram of a third structure of a charging circuit according to an embodiment of the present disclosure. The two wired charge management chips 112 are connected in parallel. The input signals and the output signals of the two wired charging management chips 112 are the same, and the input currents and the output currents of the two wired charging management chips 112 are the same, so that shunting is realized, and under the condition that the total power of the wired charging circuit 110 is not changed, the power of a single wired charging management chip 112 can be reduced, and the heat of the single wired charging management chip 112 can be reduced.

Wherein, the output terminal of the wireless charging circuit 120 is connected to the second charging terminal 142 of the battery 14. The wireless charging circuit 120 may 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, wherein an output terminal of the wireless charging module 121 is connected to an input terminal of the wireless charging management chip 122, and an output terminal of the wireless charging management chip 122 is connected to the second charging terminal 142 of the battery 14.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a wireless charging module according to an embodiment of the present disclosure. 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 121 is connected to the input end of the matching circuit 1212, the output end of the matching circuit 1212 is connected to the input end of the wireless conversion chip 1213, and the output end of the wireless conversion chip 1213 is connected to the input end of the wireless charging management chip 1122.

The wireless receiving coil 1211 may be disposed on an inner surface of the housing 11 of the electronic device 10, and the wireless receiving coil 1211 may be embedded in the housing 11, or a through hole may be formed in the housing 11 to dispose the receiving coil 1211 in the through hole. The matching circuit 1212 is used to tune 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 may also filter the signals it receives to filter out unwanted signals.

As can be seen from the above, when the user charges the battery 14 using the wireless charging circuit 120, the wireless charger may be aligned with the wireless receiving coil 1211, and the wireless receiving coil 1211 may receive the electromagnetic wave signal transmitted by the wireless charger in a wireless receiving manner, i.e. the receiving end of the wireless receiving coil 1211 may receive the electromagnetic wave signal. Then, the wireless receiving coil 1211 may transmit the received electromagnetic wave signal to the wireless converting chip 1213, the wireless converting chip 1213 may convert, filter, etc. the electromagnetic wave signal into a direct current, and transmit the direct current to the wireless charging management chip 122, and the wireless charging management chip 122 may charge the battery 14 through the second charging terminal 142.

The wired charging circuit 110 according to the embodiment of the present application 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 be used for charging the battery 14 individually or together, so that the charging efficiency can be improved. In addition, compared with the case where 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 be charged through the other charging terminal, thereby further improving the charging efficiency.

It can be understood that, in the actual wireless charging process, for a low-power wireless charging, for example, the power is less than 5w, since the power itself is small, the heat generation of the wireless receiving coil 1211, the wireless converting chip 1213 and the wireless charging management chip 122 during the charging process is not serious, and the wireless charging can be performed with a constant power. However, since the power is small, the charging speed is slow.

For high-power wireless charging, for example, the power is greater than 7.5w, or the power is greater than 10w, and the charging speed is fast due to the greater power. In the actual wireless charging process, if the power is continuously charged wirelessly for a period of time (for example, ten minutes or twenty minutes), the wireless receiving coil 1211, the wireless converting chip 1213 and the wireless charging management chip 122 may overheat, especially the wireless charging management chip 122 may overheat, and an intermittent wireless charging manner or a reduction in charging power may be required to cool down the wireless charging management chip 122, so as to ensure the safety of the charging process.

In order to ensure that the battery 14 can be continuously charged under high power without intermittent charging, the number of the wireless charging management chips 122 in the embodiment of the present application may be two or more. 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, the two or more wireless charging management chips 122 mutually disperse heat, so that the heat of the single wireless charging management chip 122 is greatly reduced, the temperature of the single wireless charging management chip 122 is not too high under the condition of ensuring high-power wireless charging, and the battery 14 can be continuously charged wirelessly in a high-power mode.

In some embodiments, there may be two wireless charging management chips 122, and the two wireless charging management chips 122 are connected in parallel. Referring to fig. 7, fig. 7 is a fourth structural schematic diagram of a charging circuit according to an embodiment of the present disclosure. 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, so as to charge the battery 14 together.

The models of the two wireless charging management chips 122 may be the same, and the input signal and the output signal of the two wireless charging management chips 122 may be the same. In an actual wireless charging process, the input power and the output power of the two wireless charging management chips 122 may be the same, for example, the input current and the output current of the two wireless charging management chips 122 are the same, so as to implement shunting, and under the condition that the total power of the wired charging circuit 110 is not changed, the power of the single wired charging management chip 112 may be reduced, and the heat of the single wired charging management chip 112 may be reduced. The heating conditions of the two wireless charging management chips 122 can be the same, so that the situation that one wireless charging management chip 120 generates heat seriously and the other wireless charging management chip 120 does not generate heat is avoided.

As can be seen from the above, in the wireless charging process of the embodiment of the present application, the two wireless charging management chips 122 can mutually disperse heat, so that it can be ensured that a single wireless charging management chip 122 is not overheated under the condition of continuous high-power charging, and the safety of the charging circuit 100 is ensured.

It should be noted that the number of the wireless charging management chips 122 in the embodiment of the present application is not limited thereto, please refer to fig. 8, and fig. 8 is a fifth structural schematic diagram of the charging circuit provided in the embodiment of the present application. The number of the 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 terminals 142, and the three wireless charging management chips 122 can collectively charge the battery 14. More power may be achieved to charge battery 14, such as power 15 w.

It should be noted that the number of the wireless charging management chips 122 may be four or more. And will not be described in detail herein.

Referring to fig. 9, fig. 9 is a sixth structural schematic diagram of a charging circuit according to an embodiment of the present disclosure. The charging circuit 100 may include a controller 130, and an output terminal of the controller 130, or a control terminal of the controller 130, may be respectively connected to the wireless conversion chip 1211, the wireless charging management chip 122 and the wired charging management chip 112 in the wireless charging module 121. The controller 130 may control the wireless conversion chip 1211, the wireless charging management chip 122 and the wired charging management chip 112 to operate.

The controller 130 may be, for example, the storage and processing circuit 131 of the electronic device 100, and the controller 130 may be a processor of the electronic device 100. It should be noted that the controller 130 may also be separately integrated on the main board of the electronic device 100.

Referring to fig. 10, fig. 10 is a schematic diagram illustrating a seventh structure of a charging circuit according to an embodiment of the disclosure. 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 may be integrated in the wired charging management chip 112. It should be noted that the first detecting module 1121 may not be integrated in the wired charging management chip 112, please refer to fig. 11, and fig. 11 is an eighth schematic structural diagram of the charging circuit provided in 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 detecting module 1121 is configured to detect a 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 detecting module 1121 may detect a charging current between the wired charging circuit 110 and the battery 14, and the first detecting module 1121 may also detect a connection relationship between the 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 not normal, such as the charging current is too large, or there is no charging current; it is also possible that the wired charging circuit 110 and the battery 14 are not connected properly, unlike being disconnected.

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 and the battery 14 to be disconnected. The controller 130 may also control the communication circuit 1322 of the electronic device 10 to send an alarm signal, such as an alarm message, to the display 12 for display, and then to send the alarm message through a speaker for emitting a sound 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 in 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 detecting module 1221 is configured to detect a state of the second charging terminal 142, where the state of the second charging terminal 142 may include a normal state and an abnormal state. The second detecting module 1221 may detect a charging current of the wireless charging circuit 120 and the battery 14, and the second detecting module 1221 may also detect a 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 that the wireless charging circuit 120 and the battery 14 are connected normally. 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 not normal, such as the charging current is too large, or there is no charging current; the wireless charging circuit 120 and the battery 14 may not be connected properly, unlike a disconnection.

In some embodiments, when the second detection module 1221 detects that the second charging terminal 142 is in the 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 and the battery 14 to be disconnected. The controller 130 may also control the communication circuit 1322 of the electronic device 10 to send an alarm signal, such as an alarm message, to the display 12 for display, and then send the alarm message to a speaker for emitting a sound to inform the user that the second charging terminal 142 is abnormal.

It should be noted that the charging circuit 100 may be provided with only the first detection module 1121, and not provided with the second detection module 1221. The charging circuit 100 may be provided with only the second detection module 1221 without the first detection module 1121.

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

The wired charging circuit 110 and the wireless charging circuit 120 according to the embodiment of the present invention are respectively connected to two charging terminals of the battery 14 to respectively charge the battery 14, and once one of the charging terminals is damaged, the battery 14 can be charged through the other charging terminal. Such as damage to the first charging terminal 141, the wireless charging circuit 120 may charge the battery 14 through the second charging terminal 142. Further, for example, when the second charging terminal 142 is damaged, the wired charging circuit 110 may charge the battery 14 through the first charging terminal 141.

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

Referring to fig. 12, fig. 12 is a ninth structural schematic diagram of a charging circuit according to an embodiment of the disclosure. The charging circuit 100 may include a wired charging circuit 110, a wireless charging circuit 120, a controller 130, and a regulation circuit 140. The wired charging circuit 110 may refer to the wired charging circuit 110. The wireless charging circuit 120 may refer to the wireless charging circuit 120. The controller 130 may refer to the above controller 130.

The control circuit 140 has two input terminals, two output terminals, and a control terminal. A first input terminal of the control circuit 140 is connected to the output terminal of the wired charging circuit 110, a second input terminal of the control circuit 140 is connected to the output terminal of the wireless charging circuit 120, a first output terminal of the control circuit 140 is connected to the first charging terminal 141 of the battery 14, a second output terminal of the control circuit 140 is connected to the second charging terminal 142 of the battery 14, and a control terminal of the control circuit 130 is connected to the output terminal of the controller 130. In some embodiments, controller 130 may control conditioning circuitry 140 to control wired charging circuitry 110 and wireless charging circuitry 120 to interface with battery 14 via conditioning circuitry 140. The regulation circuit 140 is configured to communicate an output terminal of the wired charging circuit 110 with a first output terminal or a second output terminal of the regulation circuit 140. The control circuit 140 is further configured to communicate the output terminal of the wireless charging circuit 120 with the first output terminal or the second output terminal of the control circuit 130.

Specifically, a first input terminal of the regulation circuit 130 is connected to the output terminal of the wired charging management chip 112, and a second input terminal of the regulation circuit 130 is connected to the output terminal of the wireless charging management chip 122. In some embodiments, the regulation circuit 130 is configured to communicate the output of the wired charge management chip 112 with a first output or a second output of the regulation circuit 130. The control circuit 130 is further configured to communicate an output terminal of the wireless charging management chip 122 with a first output terminal or a second output terminal of the control circuit 130.

Referring to fig. 13, fig. 13 is a tenth structural schematic diagram of a charging circuit according to an embodiment of the present disclosure. The charging circuit 100 may further include a detection unit 150, and the detection unit 150 may be integrated in the regulation circuit 140. Wherein the detecting unit 150 is used for detecting the state of the first charging terminal 141, and the detecting unit 150 is used for detecting the state of the second charging terminal 142. The state of the first charging terminal 141 can be referred to above. The state of the second charging terminal 142 can be referred to above.

When the detecting unit 150 detects that the first charging terminal 141 and the second charging terminal 142 are both in a normal state, the detecting unit 150 may transmit the detected signal to the controller 130, and the controller 130 may drive the regulating circuit 140 to control the first input terminal and the first output terminal to be connected and control the second input terminal and the second output terminal to be connected. So that the wired charging circuit 110 can be connected with the first charging terminal 141 through the regulating circuit 140, and the wireless charging circuit 120 can be connected with the second charging terminal 142 through the regulating circuit 140.

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

When the detecting unit 150 detects that the first charging terminal 141 is in the normal state and detects that the second charging terminal 142 is in the abnormal state, the detecting unit 150 may transmit the detected signal to the controller 130, and the controller 130 may drive the regulating circuit 140 to control the first input terminal to be connected to the first output terminal and control the second input terminal to be disconnected from the second output terminal. Or the controller 130 may drive the regulation circuit 140 to control the second input terminal to be connected to the first output terminal and 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 may drive the regulation circuit 140 to connect the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 to the first charging terminal 141 through the first output terminal to charge the battery 14. It should be noted that, when the wired charging circuit 110 and the wireless charging circuit 120 simultaneously charge the battery 14, the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 may be commonly transmitted to the first charging terminal 141 to charge the battery 14, or one of the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 may be transmitted to the first charging terminal 141 to charge the battery.

When the detecting 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 detecting unit 150 may transmit the detected signal to the controller 130, and the controller 130 may drive the regulating circuit 140 to control the first input terminal to be disconnected from the first output terminal and control the second input terminal to be connected to the second output terminal. The controller 130 may drive the regulation circuit 140 to control the second input terminal to be disconnected from the first output terminal, and control the first input terminal to be connected to 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 normal, the controller 130 may drive the regulation circuit 140 to connect the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 to the second charging terminal 142 through the second output terminal to charge the battery 14. It should be noted that, when the wired charging circuit 110 and the wireless charging circuit 120 simultaneously charge the battery 14, the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 may be commonly transmitted to the second charging terminal 142 to charge the battery 14, or one of the signal of the wired charging circuit 110 and the signal of the wireless charging circuit 120 may be transmitted to the second charging terminal 142 to charge the battery.

Therefore, 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 is understood that, when the detecting 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 detecting unit 150 may transmit the detected signal to the controller 130, and the controller 130 may 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 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 may drive the regulation 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 may be sent to be displayed through the display 12 or a warning signal may be sent to be sounded 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. Referring to fig. 14, fig. 14 is an eleventh structural schematic diagram of a charging circuit according to an embodiment of the disclosure. The detecting unit may include a first detecting unit 151 and a second detecting unit 152, the first detecting unit 151 is connected to the first output terminal of the regulating circuit 140 and the first charging terminal 141, and the first detecting unit 151 may detect the state of the first charging terminal 141. The second detecting unit 152 is connected between the second output terminal of the regulating circuit 140 and the second charging terminal 152, and the second detecting unit 152 may detect the state of the second charging terminal 142.

It should be further 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 within the active charge management chip 112. The number of the detecting units 150 may be multiple, one detecting unit 150 is integrated in each wired charging management chip 112, and one detecting unit is integrated in each wireless charging management chip 122.

The charging circuit and the electronic device provided by the embodiment of the application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A charging circuit is applied to electronic equipment, and is characterized in that the electronic equipment comprises a battery, the battery comprises a first charging terminal and a second charging terminal, the charging circuit comprises a wired charging circuit, a wireless charging circuit and a controller, and the controller is connected with the wired charging circuit;

the wireless charging circuit comprises a wireless charging module and a wireless charging management chip, wherein the input end of the wireless charging management chip is connected with the output end of the wireless charging module, and the output end of the wireless charging management chip is connected with the second charging terminal;

the wired charging circuit comprises a wired charging module, a wired charging management chip and a first detection module, wherein the input end of the wired charging module is used for being connected with the output end of a wired charger, the output end of the wired charging module is connected with the input end of the wired charging management chip, the output end of the wired charging management chip is connected with the first charging terminal, the first detection module is connected with the controller, and the first detection module is used for detecting the state of the first charging terminal;

when the first detection module detects that the first charging terminal is in a normal state, the controller controls the wired charging circuit to charge the battery;

when the first detection module detects that the first charging terminal is in an abnormal state, the controller controls the wired charging circuit to be disconnected from the battery.

2. The charging circuit of claim 1, wherein the first detection module is integrated within the wired charging management chip.

3. A charging circuit according to claim 1 or 2, the first and second charging terminals being located at the same end of the battery.

4. The charging circuit according to claim 1 or 2, wherein the number of the wireless charging management chips is at least two, and at least two of the wireless charging management chips are connected in parallel.

5. The charging circuit of claim 4, wherein the input signals and the output signals of two wireless charging management chips of the at least two wireless charging management chips are the same.

6. The charging circuit according to claim 1 or 2, wherein there are at least two wired charging management chips, and the at least two wired charging management chips are connected in parallel.

7. The charging circuit according to claim 1 or 2, 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, the wireless receiving coil is connected with the wireless conversion chip, and the wireless conversion chip is connected with the wireless charging management chip.

8. A charging circuit is applied to electronic equipment, and is characterized in that the electronic equipment comprises a battery, the battery comprises a first charging terminal and a second charging terminal, the charging circuit comprises a wired charging circuit, a wireless charging circuit and a controller, and the controller is connected with the wireless charging circuit;

the wired charging circuit comprises a wired charging module and a wired charging management chip, wherein the input end of the wired charging module is used for being connected with the output end of a wired charger, the output end of the wired charging module is connected with the input end of the wired charging management chip, and the output end of the wired charging management chip is connected with the first charging terminal;

the wireless charging circuit comprises a wireless charging module, a wireless charging management chip and a second detection module, wherein the input end of the wireless charging management chip is connected with the output end of the wireless charging module, the output end of the wireless charging management chip is connected with the second charging terminal, the second detection module is connected with the controller, and the second detection module is used for detecting the state of the second charging terminal;

when the second detection module detects that the second charging terminal is in a normal state, the controller controls the wireless charging circuit to charge the battery;

when the second detection module detects that the second charging terminal is in an abnormal state, the controller controls the wireless charging circuit to be disconnected from the battery.

9. The charging circuit of claim 8, wherein the second detection module is integrated within the wireless charging management chip.

10. A charging circuit according to claim 8 or 9, the first and second charging terminals being located at the same end of the battery.

11. The charging circuit according to claim 8 or 9, wherein the number of the wireless charging management chips is at least two, and at least two of the wireless charging management chips are connected in parallel.

12. The charging circuit of claim 11, wherein the input signals and the output signals of two wireless charging management chips of the at least two wireless charging management chips are the same.

13. The charging circuit according to claim 8 or 9, wherein there are at least two wired charging management chips, and the at least two wired charging management chips are connected in parallel.

14. The charging circuit according to claim 8 or 9, 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, the wireless receiving coil is connected with the wireless conversion chip, and the wireless conversion chip is connected with the wireless charging management chip.

15. A charging circuit is applied to electronic equipment, and is characterized in that the electronic equipment comprises a battery, the battery comprises a first charging terminal and a second charging terminal, the charging circuit comprises a wired charging circuit, a wireless charging circuit and a controller, and the controller is connected with the wireless charging circuit and the wired charging circuit;

when the first detection module detects that the first charging terminal is in an abnormal state, the controller controls the wired charging circuit to be disconnected from the battery;

16. The charging circuit of claim 15, wherein the first detection module is integrated into the wired charging management chip and the second detection module is integrated into the wireless charging management chip.

17. A charging circuit according to claim 15 or 16, the first and second charging terminals being located at the same end of the battery.

18. The charging circuit according to claim 15 or 16, wherein the number of the wireless charging management chips is at least two, and at least two of the wireless charging management chips are connected in parallel.

19. The charging circuit of claim 18, wherein the input signals and the output signals of two wireless charging management chips of the at least two wireless charging management chips are the same.

20. The charging circuit of claim 15 or 16, wherein there are at least two wired charging management chips, and the at least two wired charging management chips are connected in parallel.

21. The charging circuit according to claim 15 or 16, 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, the wireless receiving coil is connected with the wireless conversion chip, and the wireless conversion chip is connected with the wireless charging management chip.

22. An electronic device comprising a charging circuit according to any one of claims 1 to 21.