CN109217488B

CN109217488B - Charging circuit, electronic device, charging method, and storage medium

Info

Publication number: CN109217488B
Application number: CN201811023272.8A
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: 2020-09-22
Anticipated expiration: 2038-09-03
Also published as: CN109217488A

Abstract

The embodiment of the application provides a charging circuit, an electronic device, a charging method and a storage medium. The output end of the wired charging module is connected with the input end of the public charging management chip, and the output end of the public charging management chip is used for connecting a battery; the number of the wireless charging management chips is at least two, the input end of each wireless charging management chip is connected with the first output end of the wireless charging module, and the output end of each wireless charging management chip is used for being connected with a battery; the second output end of the wireless charging module is connected with the input end of the public management chip, when the voltage of the output signal of the wireless charging module is greater than the first voltage threshold value, the output signal of the wireless charging module is output through the first output end of the wireless charging module, otherwise, the output signal of the wireless charging module is output through the second output end. The temperature rise of the wireless charging chip can be reduced.

Description

Charging circuit, electronic device, charging method, and storage medium

Technical Field

The present disclosure relates to the field of electronic technologies, and in particular, to a charging circuit, an electronic device, a charging method, and a storage medium.

Background

At present, a plurality of charging schemes for electronic equipment such as a mobile phone are available, but the charging is realized by utilizing a wired channel. With the continuous development of the technology, especially the development of the wireless charging industry, another charging scheme, namely a wireless charging scheme, is provided. However, the problem of heat generation is serious in the wireless charging scheme.

Disclosure of Invention

The embodiment of the application provides a charging circuit, an electronic device, a charging method and a storage medium, which can solve the problem of heat generation in a wireless charging process.

In a first aspect, an embodiment of the present application provides a charging circuit, which is applied to an electronic device, and the charging circuit includes a wired charging module, a public charging management chip, a wireless charging module, and a wireless charging management chip, where:

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 public charging management chip, and the output end of the public charging management chip is used for being connected with a battery;

the number of the wireless charging management chips is at least two, the input end of each wireless charging management chip is connected with the first output end of the wireless charging module, the output end of each wireless charging management chip is used for connecting a battery,

the second output end of the wireless charging module is connected with the input end of the public charging management chip, when the voltage of the output signal of the wireless charging module is larger than a first voltage threshold value, the output signal of the wireless charging module passes through the first output end of the wireless charging module to be output, and when the voltage of the output signal of the wireless charging module is smaller than or equal to the first voltage threshold value, the output signal of the wireless charging module passes through the second output end of the wireless charging module to be output.

In a second aspect, an embodiment of the present application provides an electronic device, which includes a battery and a charging circuit, where the charging circuit is the charging circuit described above.

In a third aspect, an embodiment of the present application provides a charging method, which is applied to an electronic device, where the electronic device includes a charging circuit and a battery, and the charging circuit includes a wired charging module, a common charging management chip, a wireless charging module, and a wireless charging management chip;

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 public charging management chip, and the output end of the public charging management chip is connected with a battery;

the number of the wireless charging management chips is at least two, the input end of each wireless charging management chip is connected with the first output end of the wireless charging module, and the output end of each wireless charging management chip is connected with a battery;

the second output end of the wireless charging module is connected with the input end of the public management chip;

the method comprises the following steps:

when the voltage of the output signal of the wireless charging module is greater than a first voltage threshold value, the output signal of the wireless charging module is output through a first output end of the wireless charging module;

when the voltage of the output signal of the wireless charging module is smaller than or equal to a first voltage threshold value, the output signal of the wireless charging module is output through the second output end.

In a fourth aspect, embodiments of the present application provide a storage medium having a computer program stored thereon, which, when run on a computer, causes the computer to execute the charging method described above.

The charging circuit that this application embodiment provided includes wired charging module and wireless charging module, wired charging module fills the management chip through wired and connects the battery, wireless charging module is through public charging management chip and two at least wireless charging management chip connection batteries, when wireless charging module output signal's voltage is greater than first voltage threshold, wireless charging module's output signal charges for the battery through two at least wireless charging management chips, will generate heat the dispersion through two at least wireless charging management chips, thereby reduce the temperature rise of wireless charging management chip, improve the efficiency and the life of wireless charging management chip. The wired charging module can also charge the battery through the public charging management chip, so that the battery can be charged in a wired and wireless mode, the charging efficiency is improved, and the charging time is shortened. When the voltage of the output signal of the wireless charging module is smaller than or equal to the first voltage threshold value, the output signal of the wireless charging module charges the battery through the public charging management chip, the use of the wireless charging chip is reduced, and the temperature rise of the wireless charging chip is reduced.

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. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

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

Fig. 2 is a cross-sectional view of the electronic device of fig. 1 in the direction of a-a'.

Fig. 3 is another schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 4 is a block diagram of an electronic device according to an embodiment of the present application.

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

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

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

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

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

Fig. 12 is a schematic diagram of a seventh structure of a charging circuit according to an embodiment of the present disclosure.

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

Fig. 14 is a schematic flowchart of a charging method according to an embodiment of the present application.

Detailed Description

Referring to the drawings, wherein like reference numbers refer to like elements, the principles of the present application are illustrated as being implemented in a suitable computing environment. The following description is based on illustrated embodiments of the application and should not be taken as limiting the application with respect to other embodiments that are not detailed herein.

The term "module" as used herein may be considered a software object executing on the computing system. The various components, modules, engines, and services described herein may be viewed as objects implemented on the computing system. The apparatus and method described herein are preferably implemented in software, but may also be implemented in hardware, and are within the scope of the present application.

The following is a detailed description of the analysis.

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 to 3, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure, fig. 2 is a cross-sectional view taken along a direction a-a' in fig. 1, and fig. 3 is another schematic structural diagram of the electronic device according to an embodiment of the present disclosure. The electronic device 10 may include a cover 11, a display 12, a control circuit 13, a battery 14, a housing 15, a front-facing camera 161, a rear-facing camera 162, and a fingerprint unlocking module 17. It should be noted that the electronic device 10 is not limited to the above.

Wherein the cover plate 11 is mounted to the display screen 12 to cover the display screen 12. The cover plate 11 may be a transparent glass cover plate so that the display screen 12 transmits light through the cover plate 11 for display. In some embodiments, the cover plate 11 may be a glass cover plate made of a material such as sapphire.

Wherein the display screen 12 is mounted in the housing 15. The display 12 is electrically connected to the control circuit 13 to form a display surface of the electronic device 10. The display 12 may have a regular shape, such as a rectangular parallelepiped, the top end and/or 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 and/or the lower portion of the display 12, and the electronic device 10 may mount a front camera 161, a rear camera 162, and the like on the non-display area. It should be noted that the display 12 may also cover the entire display surface of the electronic device 10, that is, a full-screen display of the electronic device 10 is realized.

The control circuit 13 is installed in the housing 15, the control circuit 13 may be a motherboard of the electronic device 10, and one, two or more functional components of a motor, a microphone, a speaker, an earphone interface, a universal serial bus interface, a front camera 161, a rear camera 162, a distance sensor, an ambient light sensor, a receiver, and a controller may be integrated on the control circuit 13. In some embodiments, the control circuit 13 may be screwed into the housing 12 by screws, or may be snap-fit into the housing 12. It should be noted that the way of fixing the control circuit 13 specifically in the housing 12 according to the embodiment of the present application is not limited to this, and other ways, such as a way of fixing by a snap and a screw together, are also possible.

The housing 15 includes a middle frame 151 and a rear cover 152, the middle frame 151 is disposed around the display 12, and the rear cover 152 and the display 12 are disposed on two opposite sides of the electronic device 10. It is understood that the display 12 may be the front of the electronic device 10 and the back cover 152 the back of the electronic device 10.

Referring to fig. 4, fig. 4 is a block diagram of an electronic device according to an embodiment of the present disclosure. The control circuitry 13 of the electronic device 10 may include storage and processing circuitry 131. 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 microcontrollers, digital signal controllers, baseband controllers, 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 also include input-output circuitry 132. 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 input-output circuitry 132 may also include one or more displays, such as display 1322, the display 1322 may be referred to above with respect to display 12. The display 1322 may include one or a combination of liquid crystal displays, organic light emitting diode displays, electronic ink displays, plasma displays, displays using other display technologies. Display 1322 may include an array of touch sensors (i.e., display 1322 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.

Electronic device 10 may also include an audio component 1323. Audio component 1323 may be used to provide audio input and output functionality for electronic device 10. Audio components 1323 in electronic device 10 may include speakers, microphones, buzzers, tone generators, and other components for generating and detecting sound.

The electronic device 10 may also include communications circuitry 1324. The communications circuitry 1324 may be used to provide the electronic device 10 with the ability to communicate with external devices. The communication circuitry 1324 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 1324 may include radio-frequency transceiver circuitry, power amplifier circuitry, low noise amplifiers, switches, and filters. For example, the wireless communication circuitry in communications circuitry 1324 may include circuitry to support Near Field Communication (NFC) by transmitting and receiving Near field coupled electromagnetic signals. For example, the communication circuit 124 may include a near field communication antenna and a near field communication transceiver. Communications circuitry 1324 may also include cellular telephone transceiver, wireless local area network transceiver circuitry, and the like.

The electronic device 10 may further include power management circuitry and other input-output units 1325. The input-output unit 1325 may include buttons, joysticks, click wheels, scroll wheels, touch pads, keypads, keyboards, cameras, light emitting diodes and other status indicators, etc.

The electronic device 10 may also 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.

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.

Wherein a battery 14 is mounted in the housing 15, the battery 14 being electrically connected to the control circuit 13 for providing power to the electronic device 10. The housing 15 may serve as a battery cover for the battery 14. The case 15 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.

Wherein the housing 15 may form an outer contour of the electronic device 10. In some embodiments, the housing assembly 15 may include a receiving space to receive the control display 12, the control circuit 13, the battery 14, and the like.

In some embodiments, the housing 15 may be a metal housing component, such as a metal such as magnesium alloy, stainless steel, and the like. It should be noted that the material of the housing 15 in the embodiment of the present application is not limited to this, for example: the housing 15 may be a plastic housing, a ceramic housing, a glass housing, or the like.

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. 5, fig. 5 is a schematic diagram of a first structure of a charging circuit according to an embodiment of the present disclosure. The charging circuit 100 may include: a wired charging module 110, a common charging management chip 120, a wireless charging module 130, and a wireless charging management chip 140.

The input terminal 1101 of the wired charging module 110 is used for connecting the output terminal 2001 of the wired charger 200, the output terminal 1102 of the wired charging module 110 is connected with the input terminal 121 of the common charging management chip 120, and the output terminal 1202 of the common charging management chip 120 is connected with the battery 14.

Therefore, when the user uses the wired charging module 110 to charge the battery 14, the wired charger 200 and the wired charging module 110 are plugged into each other, for example, the wired charger 200 and the wired charging module 110 are plugged into each other through a type-c interface to achieve connection, so as to achieve the purpose that the wired charger 200 charges the battery 14 through the wired charging module 110 and the common charging management chip 120.

Please refer to fig. 6, in which fig. 6 is a schematic structural diagram of a wireless charging module according to an embodiment of the present disclosure. The wireless charging module 130 may include a wireless receiving coil 1308, a matching circuit 1307, and a wireless conversion chip 1309.

The wireless receiving coil 1308 may be disposed on an inner surface of a rear cover of the electronic device 10, and the wireless receiving coil 1308 may be embedded in the rear cover, or a through hole may be formed in the rear cover, so as to dispose the receiving coil 1308 in the through hole. An output terminal 13081 of the wireless receiving coil 1308 is connected to an input terminal 13071 of the matching circuit 1307, an output terminal 13072 of the matching circuit 1307 is connected to an input terminal 13091 of the wireless conversion chip 13091, and an output terminal 13092 of the wireless conversion chip 1309 is connected to an input terminal 1401 of the wireless charging management chip 140.

The matching circuit 1307 is used for tuning a signal received by the wireless receiving coil 1308. The wireless conversion chip 1309 can convert an ac signal into a dc signal. The wireless conversion chip 1309 may also filter signals it receives to filter out unwanted signals.

As can be seen from the above, when the user uses the wireless charging module 130 to charge the battery 14, the wireless charger is aligned with the wireless receiving coil 1308, and the wireless receiving coil 1308 can receive the electromagnetic wave signal transmitted by the wireless charger in a wireless receiving manner, i.e. the wireless receiving coil 1308 can receive the electromagnetic wave signal. Then, the wireless receiving coil 1308 may convert the received electromagnetic wave signal into an alternating current signal, and transmit the alternating current signal to the wireless conversion chip 1309, the wireless conversion chip 1309 may convert, filter, etc. the electromagnetic wave signal into a direct current signal, and transmit the direct current signal to the wireless charging management chip 140, and the wireless charging management chip 140 may charge the battery 14 with the converted and filtered direct current signal.

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 low, the heat generated by the wireless receiving coil 1308, the wireless converting chip 1309 and the wireless charging management chip 140 during the charging process is not serious, and the wireless charging can be continuously performed. 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 wireless receiving coil 1308, the wireless conversion chip 1309, and the wireless charging management chip 140 are overheated after continuously charging for a period of time with high power (for example, ten minutes or twenty minutes), especially if the wireless charging management chip 140 is overheated, an intermittent wireless charging mode or a charging power reduction mode needs to be adopted to cool down the wireless charging management chip 140, 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 140 in the embodiment of the present application may be two or more. Two or more wireless charging management chips 140 are connected in parallel, two or more wireless charging management chips 140 charge the battery 14 together, and in the actual charging process, two or more wireless charging management chips 140 mutually disperse the heat, greatly reduces the heat of a single wireless charging management chip 140, thereby ensuring that the temperature of the single wireless charging management chip 140 is not too high under the condition of ensuring high-power wireless charging, and continuously charging the battery 14 wirelessly in a high-power mode.

In some embodiments, there may be two wireless charging management chips 140, and the two wireless charging management chips 140 are connected in parallel. Referring to fig. 7, fig. 7 is a schematic diagram of a second structure of a charging circuit according to an embodiment of the present disclosure. The two wireless charging management chips 140 may be a first wireless charging management chip 141 and a second wireless charging management chip 142, respectively.

The input 1411 of the first wireless charging management chip 141 is connected to the first output 1301 of the wireless charging module 130, and the output 1412 of the first wireless charging management chip 141 is connected to the battery 14. The input terminal 1421 of the second wireless charging management chip 142 is connected to the first output terminal 1301 of the wireless charging module 130, and the output terminal 1422 of the second wireless charging management chip 142 is connected to the battery 14.

In some embodiments, the models of the first wireless charging management chip 141 and the second wireless charging management chip 142 may be the same, the input signal of the first wireless charging management chip 141 and the input signal of the second wireless charging management chip 142 may be the same, and the output signal of the first wireless charging management chip 141 and the output signal of the second wireless charging management chip 142 may be the same. In the actual wireless charging process, the input power and the output power of the first wireless charging management chip 141 and the second wireless charging management chip 142 may be the same, and the heating conditions of the first wireless charging management chip 141 and the second wireless charging management chip 142 may be the same, so as to avoid the situation that one wireless charging management chip 140 generates heat seriously and the other wireless charging management chip 140 does not generate heat.

As can be seen from the above, in the wireless charging process according to the embodiment of the present application, the first wireless charging management chip 141 and the second wireless charging management chip 142 can mutually disperse heat, so that it can be ensured that the first wireless charging management chip 141 and the second wireless charging management chip 142 are not overheated under the condition of continuous high-power charging, and the safety of the charging circuit 100 is ensured.

The first wireless charging management chip 141 and the second wireless charging management chip 142 may charge the battery 14 at the same time, or may partially charge the battery 14. The selection can be specifically performed according to the heating condition of each wireless charging management chip 140 and the user requirement.

It should be noted that, the wireless charging management chip 140 according to the embodiment of the present application is not limited thereto, please refer to fig. 8, and fig. 8 is a schematic diagram of a third structure of the charging circuit according to the embodiment of the present application. The wireless charging management chip 140 may further include a third wireless charging management chip 143, the third wireless charging management chip 143 is respectively connected to the first wireless charging management chip 141 and the second wireless charging management chip 142 in parallel, an input terminal 1431 of the third wireless charging management chip 143 is connected to the first output terminal 1301 of the wireless charging module 130, and an output terminal 1432 of the third wireless charging management chip 143 is connected to the battery 14.

Therefore, during the wireless charging process, the battery 14 can be charged by the first wireless charging management chip 141, the second wireless charging management chip 142 and the third wireless charging management chip 143 together, so that a higher power, such as the power 15w, can be realized to charge the battery 14.

It should be noted that the wireless charging management chip 140 may further include a fourth wireless charging management chip or more wireless charging management chips. And will not be described in detail herein.

It should be noted that the first wireless charging management chip 141, the second wireless charging management chip 142, and the third wireless charging management chip 143 may charge the battery 14 at the same time, or may partially charge the battery 14. The selection can be specifically performed according to the heating condition of each wireless charging management chip 140 and the user requirement.

In some embodiments, the wireless charging module 130 further comprises a second output 1302, and the second output 1302 of the wireless charging module 130 is connected to the input 1201 of the common charging management chip 120. When the voltage of the output signal of the wireless charging module 130 is greater than the first voltage threshold, the output signal of the wireless charging module 130 is output through the first output terminal 1301 of the wireless charging module 130. When the voltage of the output signal of the wireless charging module 130 is less than or equal to the first voltage threshold, the output signal of the wireless charging module 130 is output through the second output terminal 1302.

As can be seen from the above, when the voltage of the output signal of the wireless charging module 130 is greater than the first voltage threshold, the output signal of the wireless charging module 130 charges the battery 14 through the at least two wireless charging management chips 140, and the heat is dissipated through the at least two wireless charging management chips 140, so that the temperature rise of the wireless charging management chips 140 is reduced, and the efficiency and the service life of the wireless charging management chips 140 are improved. The wired charging module 110 can also charge the battery 14 through the common charging management chip 120 at the same time, so that the battery 14 can be charged both in a wired mode and a wireless mode, the charging efficiency is improved, and the charging time is shortened. When the voltage of the output signal of the wireless charging module 130 is less than or equal to the first voltage threshold, the output signal of the wireless charging module 130 charges the battery through the common charging management chip 120, so that the use of the wireless charging management chip 140 is reduced, and the temperature rise of the wireless charging management chip 140 is reduced. The wireless charging process is divided into two stages, one is a low voltage output stage (for example, voltage is 5V) of the wireless charging module 130, at this time, the output signal of the wireless charging module 130 is transmitted to the common charging management chip 120, and the other is a high voltage output stage (for example, voltage is 9V or 12V) of the wireless charging module 130, at this time, the output signal of the wireless charging module 130 is transmitted to the wireless charging management chip 140, so as to reduce the temperature rise of the wireless charging management chip 140. The first voltage threshold may be according to actual needs, for example, the first voltage threshold may be 5V or 9V, and may also be 5.5V or 8.5V.

In the process of wirelessly charging the battery 14, when the power of the battery 14 is lower than the preset power threshold, a small current or a small power is charged first, and at this time, the output signal of the wireless charging module 130 may be charged to the battery 14 through the common charging management chip 120. When the electric quantity of the battery 14 is greater than the preset electric quantity threshold, the battery 14 may be charged with a large current or a large power, and at this time, the output signal of the wireless charging module 130 may be charged to the battery 14 through the plurality of wireless charging management chips 140. Therefore, the time for using the wireless charging management chip 140 can be reduced, and the temperature rise of the wireless charging management chip 140 is optimized. The preset power threshold refers to a minimum power at which the electronic device can be turned on. The preset charge threshold may also be a minimum protection charge of the battery 14, and a large-current charge less than the protection charge may cause a loss of performance of the battery 14. In addition, when the electronic device is in a power-off state, the electronic device also needs to be charged with a small current first.

Referring to fig. 9, fig. 9 is a schematic diagram illustrating a fourth structure of a charging circuit according to an embodiment of the disclosure. The wireless charging module 130 includes at least two first output terminals 1301 and a second output terminal 1302, the second output terminal 1302 is connected to the common charging management chip 120, and the at least two first output terminals 1301 are connected to the at least two wireless charging management chips 140 in a one-to-one correspondence manner.

When the voltage of the output signal of the wireless charging module 130 is greater than the first voltage threshold, the output signal of the wireless charging module 130 is selected from at least one of the at least two first output terminals 1301 to be output, and when the output voltage of the output signal of the wireless charging module 130 is less than or equal to the first voltage threshold, the output signal of the wireless charging module 130 is output from the second output terminal 1302 of the wireless charging module 130.

The wireless charging module 130 directly includes at least two first output terminals 1301, and the first output terminals 1301 are directly connected to the wireless charging management chip 140 and correspond to each other. Several wireless charging management chips can be selected directly through the wireless charging module 130. For example, the wireless charging module 130 includes 3 first output ports 1301, the output signals of the wireless charging module 130 can be output from only 2 first output ports 1301, and several wireless charging management chips are selected to charge the battery 14 by controlling whether the output of the first output ports 1301 is available or not. The wireless charging module 130 may include a wireless conversion chip including at least two first output terminals 1301 and one second output terminal 1302.

Referring to fig. 10, fig. 10 is a schematic diagram illustrating a fifth structure of a charging circuit according to an embodiment of the disclosure. The wireless charging module 130 includes a wireless conversion chip 1309 and a control switch 1310.

The output terminal of the wireless conversion chip 1309 is connected to the input terminal of the control switch 1310. A first switch output terminal of the control switch 1310 is connected to the input terminals of the at least two wireless charging management chips 140, and a second output terminal of the control switch 1310 is connected to the input terminal 1201 of the common charging management chip 120.

When the voltage of the input signal of the control switch 1310 is greater than the first voltage threshold, the input terminal of the control switch 1310 is connected to the first switch output terminal of the control switch 1310, and when the voltage of the input signal of the control switch 1310 is less than the first voltage threshold, the input terminal of the control switch 1310 is connected to the second output terminal of the control switch 1310.

The output terminal of the wireless conversion chip 1309 of the wireless charging module 130 outputs an electrical signal, which selects the common charging management chip 120 or the wireless charging management chip 140 to charge the battery 14 through the control switch 1310.

Referring to fig. 11, fig. 11 is a schematic diagram illustrating a sixth structure of a charging circuit according to an embodiment of the disclosure. The charging circuit also includes a temperature detector 160 and a controller 170.

Specifically, an input terminal 1601 of the temperature detector 160 is connected to each wireless charging management chip 140, an output terminal 1602 of the temperature detector 160 is connected to an input terminal 1702 of the controller 170, and an output terminal 1701 of the controller 170 is connected to a control terminal 1403 of each wireless charging management chip 140.

The temperature detector 160 is connected to each wireless charging management chip 140 and obtains a temperature value thereof. The controller 170 is connected to the temperature detector 160, and the controller 170 controls the operating state of the wireless charging management chip 140 according to the temperature value detected by the temperature detector.

The temperature detector 160 may be configured to detect a temperature of each wireless charging management chip 140, and the controller 170 controls each wireless charging management chip 140 according to the temperature of each wireless charging management chip 140, for example, controls the wireless charging management chip 140 to be in an operating state or an idle state, where the idle state may be understood as a state of suspending or stopping operation.

In some embodiments, when the temperature of the wireless charging management chip 140 of the at least two wireless charging management chips 140 is greater than a first temperature threshold, the controller controls the wireless charging management chip 140 whose temperature is greater than the first temperature threshold to switch to the idle state; when the temperature of the wireless charging management chip 140 in the idle state is lower than a second temperature threshold, the controller switches the wireless charging management chip 140 in the idle state to the working state, wherein the second temperature threshold is smaller than the first temperature threshold.

The controller controls according to the temperature of the wireless charging management chip 140, and when the temperature of one of the wireless charging management chips 140 is greater than the first temperature threshold, which indicates that the current temperature is higher and the wireless charging management chip 140 is easily damaged or the performance of the wireless charging management chip 140 is reduced, the wireless charging management chip 140 with the temperature greater than the first temperature threshold may be switched to an idle state to reduce the temperature of the wireless charging management chip 140. The temperature of the wireless charging management chip 140 is detected in real time, and when the temperature of the wireless charging management chip 140 in the idle state is reduced to a second temperature threshold, the wireless charging management chip 140 in the idle state is controlled to be switched to the working state, wherein the second temperature threshold is smaller than the first temperature threshold, so that the wireless charging management chip 140 which is working again cannot immediately exceed the first temperature threshold, and thus the wireless charging management chip 140 enters the idle state again. The first temperature threshold and the second temperature threshold are different according to different wireless charging management chips 140, and the temperature difference between the two is also set according to needs, for example, the temperature difference may be set to 10 degrees, 15 degrees, etc.

In some embodiments, when the temperature of the at least two wireless charging management chips 140 is less than a third temperature threshold, the controller selects at least one wireless charging management chip 140 from the at least two wireless charging management chips 140 to be in an idle state, wherein the third temperature threshold is less than the first temperature threshold.

When the temperature detector detects that the temperatures of the wireless charging management chips 140 are all smaller than the third temperature threshold, it indicates that the states of the wireless charging management chips 140 are all good, at least one wireless charging management chip can be in an idle state, the temperature of the wireless charging management chip 140 in a subsequent idle state in a working state is low, and subsequent temperature rise is improved. The third temperature threshold may also be less than the second temperature threshold.

For example, there are two wireless charging management chips 140, both wireless charging management chips 140 are in an operating state, and when the temperature detector detects that the temperatures of the two wireless charging management chips 140 currently in the operating state are less than the third temperature threshold, the temperature detector transmits the temperatures to the controller, and the controller controls one of the wireless charging management chips 140 in the operating state to switch to the idle state.

Also for example, the wireless charging management chips 140 have three wireless charging management chips 140, wherein three wireless charging management chips 140 or two wireless charging management chips 140 are in an operating state. When the temperature detector detects that the temperature of all the wireless charging management chips 140 is less than the third temperature threshold, the temperature detector transmits the temperature to the controller, the controller controls one or two wireless charging management chips 140 in the working state to switch to the idle state, and one or two wireless charging management chips 140 are kept in the working state. The control may be performed according to the temperature of each wireless charging management chip 140 and the number of wireless management chips in an operating state.

In some embodiments, when the temperature of the at least two wireless charging management chips 140 is less than the third temperature threshold and the input voltage of the at least two wireless charging management chips 140 is less than the second voltage threshold, the controller selects at least one wireless charging management chip from the at least two wireless charging management chips 140 to be in an idle state, wherein the second voltage threshold is greater than the first voltage threshold.

When the temperature detector detects that the temperature of the wireless charging management chip 140 is less than the third temperature threshold and the input voltage of the wireless charging management chip 140 is less than the second voltage threshold, it indicates that the current state of the wireless charging management chip 140 is better, the input voltage is lower, the heat generation of the wireless charging management chip 140 is not serious, at least one wireless charging management chip 140 can be in an idle state, and when the wireless charging management chip 140 in a subsequent idle state enters a working state, the initial state temperature is lower, and the subsequent temperature rise is improved. The second voltage threshold is set as needed, for example, 8V or 10V.

It should be noted that the temperature detector 160 may be a separate component, such as a temperature sensor, a temperature sensitive resistor, etc., and the temperature detector 160 may also be disposed inside the wireless charging management chip 140, that is, the temperature detector 160 is integrated inside the wireless charging management chip 140.

Referring to fig. 12, fig. 12 is a schematic diagram illustrating a seventh structure of a charging circuit according to an embodiment of the disclosure. The charging circuit further includes a voltage step-down circuit 180 and a selection switch 190.

The input end of the selection switch 190 is connected to the input ends of at least two wireless charging management chips 140, and the output end of the selection switch 190 is connected to the input end 1201 of the common charging management chip 120 through the voltage reduction circuit 180.

When the temperatures of the at least two wireless charging management chips 140 are greater than the first temperature threshold, controlling the at least two wireless charging management chips 140 to be in an idle state, and controlling the selection switch 190 to be turned on; when the temperature of one wireless charging management chip 140 of the at least two wireless charging management chips 140 is not greater than the first temperature threshold, the controller controls the selection switch 190 to be turned off.

When it is detected that the temperatures of all the wireless charging management chips 140 are greater than the first temperature threshold, all the wireless charging management chips 140 need to be switched to the idle state, so that the wireless channel for charging the battery 14 cannot continue to charge the battery. At this time, the components at both ends of the selection switch 190 are turned on, that is, the electric signal inputted to the wireless charging management chip 140 is inputted to the common charging management chip 120 through the voltage-reducing circuit 180, and the battery is continuously charged without causing a blank window period for charging the battery, that is, the battery 14 is not charged for a certain period of time.

In some embodiments, the positions of the selection switch 190 and the voltage reduction circuit 180 can be reversed.

Referring to fig. 13, fig. 13 is a schematic diagram of an eighth structure of a charging circuit according to an embodiment of the present disclosure. The charging circuit comprises a wired charging module 110, a common charging management chip 120, a load switch 150, a wireless charging module 130, a controller 170 and a wireless charging management chip 140.

The input end 1101 of the wired charging module 110 is used for connecting the output end of the wired charger, the output end 1102 of the wired charging module 110 is connected with the first input end 1501 of the load switch 150, the output end 1503 of the load switch 150 is connected with the input end of the common charging management chip 120, and the output end 1202 of the common charging management chip 120 is connected with the battery 14.

The first output terminal 1301 of the wireless charging module 130 is connected to the second input terminal 1502 of the load switch 150, the second output terminal 1302 of the wireless charging module 130 is connected to the input terminals 1401 of the at least two wireless charging management chips 140, and the output terminals 1402 of the at least two wireless charging management chips 140 are connected to the battery 14.

The plurality of output terminals 1701 of the controller 170 are respectively connected to the control terminal 13/3 of the wireless charging module 130, the control terminal 1403 of the wireless charging management chip 140, and the control terminal 1203 of the common charging management chip 120. The controller 170 may control the wireless charging module 130, the wireless charging management chip 140, and the common charging management chip to switch between an operating state and an idle state, and the like.

The common charge management chip 120 may be provided with two or more common charge management chips 120 to increase the heat dissipation performance.

Referring to fig. 14, fig. 14 is a schematic flowchart of a charging method according to an embodiment of the present disclosure. The charging method is applied to electronic equipment, the electronic equipment comprises a charging circuit and a battery, and the charging circuit comprises a wired charging module, a public charging management chip, a wireless charging module and a wireless charging management chip; the input end of the wired charging module is used for being connected with the output end of the wired charger, the output end of the wired charging module is connected with the input end of the public charging management chip, and the output end of the public charging management chip is connected with the battery; the number of the wireless charging management chips is at least two, the input end of each wireless charging management chip is connected with the first output end of the wireless charging module, and the output end of each wireless charging management chip is connected with the battery; and the second output end of the wireless charging module is connected with the input end of the public management chip. The charging method specifically comprises the following steps:

101, when the voltage of the output signal of the wireless charging module is greater than the first voltage threshold, the output signal of the wireless charging module is output through the first output end of the wireless charging module.

102, when the voltage of the output signal of the wireless charging module is less than or equal to the first voltage threshold, the output signal of the wireless charging module is output through the second output end.

In some embodiments, after the step of 102, the method further comprises: acquiring the temperature of each wireless charging management chip in at least two wireless charging management chips; and controlling the working states of at least two wireless charging management chips according to the temperature.

Specifically, when the temperature of a wireless charging management chip in at least two wireless charging management chips is greater than a first temperature threshold, the wireless charging management chip with the temperature greater than the first temperature threshold is controlled to be in an idle state; and when the temperature of the wireless charging management chip in the idle state is lower than a second temperature threshold, switching the wireless charging management chip in the idle state to a working state, wherein the second temperature threshold is smaller than the first temperature threshold.

When the temperature of the at least two wireless charging management chips is smaller than a third temperature threshold value, selecting at least one wireless charging management chip from the at least two wireless charging management chips to be in an idle state, wherein the third temperature threshold value is smaller than the first temperature threshold value. The third temperature threshold may also be less than the second temperature threshold.

An embodiment of the present application further provides a storage medium, where the storage medium stores a computer program, and when the computer program runs on a computer, the computer is caused to execute the method for processing touch information in any of the above embodiments, such as: when the voltage of the output signal of the wireless charging module is greater than a first voltage threshold value, the output signal of the wireless charging module is output through a first output end of the wireless charging module; when the voltage of the output signal of the wireless charging module is smaller than or equal to the first voltage threshold, the output signal of the wireless charging module is output through the second output end.

In the embodiment of the present application, the storage medium may be a magnetic disk, an optical disk, a Read Only Memory (ROM), a Random Access Memory (RAM), or the like.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The above detailed description is provided for a charging circuit, an electronic device, a charging method, and a storage medium according to embodiments of the present application, and specific examples are applied herein to explain the principles and implementations of the present application, and the description of the above embodiments is only used to help understand the method and the core idea of 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. The utility model provides a charging circuit, is applied to electronic equipment, its characterized in that, including wired charging module, public charge management chip, wireless charging module and wireless charge management chip, wherein:

the second output end of the wireless charging module is connected with the input end of the public charging management chip, in the process of wirelessly charging the battery, when the electric quantity of the battery is lower than a preset electric quantity threshold value or the electronic equipment is in a shutdown state, the voltage output by the wireless charging module is smaller than a first voltage threshold value, when the electric quantity of the battery is larger than the preset electric quantity threshold value, the voltage output by the wireless charging module is larger than the first voltage threshold value, when the voltage of the output signal of the wireless charging module is larger than the first voltage threshold value, the output signal of the wireless charging module passes through the first output end of the wireless charging module, and when the voltage of the output signal of the wireless charging module is smaller than or equal to the first voltage threshold value, the output signal of the wireless charging module passes through the second output end of the wireless charging module for outputting.

2. The charging circuit of claim 1, wherein the wireless charging module comprises at least two first output terminals and a second output terminal, the second output terminal is connected to the common charging management chip, and the at least two first output terminals are connected to the at least two wireless charging management chips in a one-to-one correspondence;

when the voltage of the output signal of the wireless charging module is greater than a first voltage threshold value, the output signal of the wireless charging module is output from at least one first output end selected from the at least two first output ends, and when the output voltage of the output signal of the wireless charging module is less than or equal to the first voltage threshold value, the output signal of the wireless charging module is output from a second output end of the wireless charging module.

3. The charging circuit of claim 1, wherein the wireless charging module comprises a wireless conversion chip and a control switch;

the output end of the wireless conversion chip is connected with the input end of the control switch;

a first switch output end of the control switch is connected with input ends of the at least two wireless charging management chips, and a second output end of the control switch is connected with an input end of the public charging management chip;

when the voltage of the control switch input signal is greater than a first voltage threshold value, the input end of the control switch is conducted with the first switch output end of the control switch, and when the voltage of the control switch input signal is less than the first voltage threshold value, the input end of the control switch is conducted with the second output end of the control switch.

4. The charging circuit of claim 1, further comprising a temperature detector and a controller;

the temperature detector is connected with each wireless charging management chip and obtains a temperature value of each wireless charging management chip;

the controller is connected with the temperature detector, the controller is connected with the wireless charging management chip, and the controller controls the working state of the wireless charging management chip according to the temperature value detected by the temperature detector.

5. The charging circuit of claim 4, wherein when the temperature of the wireless charging management chip of the at least two wireless charging management chips is greater than a first temperature threshold, the controller controls the wireless charging management chip having a temperature greater than the first temperature threshold to switch to an idle state;

when the temperature of the wireless charging management chip in the idle state is lower than a second temperature threshold, the controller switches the wireless charging management chip in the idle state to a working state, wherein the second temperature threshold is smaller than the first temperature threshold.

6. The charging circuit of claim 5, wherein the controller selects at least one wireless charging management chip from the at least two wireless charging management chips to be in an idle state when the temperature of the at least two wireless charging management chips is less than a third temperature threshold, wherein the third temperature threshold is less than the first temperature threshold.

7. The charging circuit of claim 5, wherein the controller selects at least one wireless charging management chip from the at least two wireless charging management chips to be in an idle state when the temperature of the at least two wireless charging management chips is less than a third temperature threshold and the input voltage of the at least two wireless charging management chips is less than a second voltage threshold, wherein the third temperature threshold is less than a first temperature threshold and the second voltage threshold is greater than the first voltage threshold.

8. The charging circuit of claim 4, further comprising a voltage step-down circuit and a selection switch;

the input end of the selection switch is connected with the input ends of the at least two wireless charging management chips, and the output end of the selection switch is connected with the input end of the public charging management chip through the voltage reduction circuit;

when the temperature of the at least two wireless charging management chips is larger than a first temperature threshold value, the controller controls the at least two wireless charging management chips to be switched to an idle state and controls the selection switch to be conducted;

when the temperature of one wireless charging management chip in the at least two wireless charging management chips is smaller than the first temperature threshold value, the controller controls the selector switch to be switched off.

9. The utility model provides a charging circuit, is applied to electronic equipment, its characterized in that, including wired charging module, public charge management chip, wireless charging module and wireless charge management chip, wherein:

the second output end of the wireless charging module is connected with the input end of the public charging management chip, when the voltage of the output signal of the wireless charging module is greater than a first voltage threshold value, the output signal of the wireless charging module is output through the first output end of the wireless charging module, and when the voltage of the output signal of the wireless charging module is less than or equal to the first voltage threshold value, the output signal of the wireless charging module is output through the second output end of the wireless charging module;

wherein the charging circuit further comprises a temperature detector and a controller; the temperature detector is connected with each wireless charging management chip and obtains a temperature value of each wireless charging management chip;

the controller is connected with the temperature detector, the controller is connected with the wireless charging management chip, and the controller controls the working state of the wireless charging management chip according to the temperature value detected by the temperature detector;

when the temperature of a wireless charging management chip in the at least two wireless charging management chips is greater than a first temperature threshold, the controller controls the wireless charging management chip with the temperature greater than the first temperature threshold to switch to an idle state;

10. The charging circuit of claim 9, wherein the wireless charging module comprises at least two first output terminals and a second output terminal, the second output terminal is connected to the common charging management chip, and the at least two first output terminals are connected to the at least two wireless charging management chips in a one-to-one correspondence;

11. The charging circuit of claim 9, wherein the wireless charging module comprises a wireless conversion chip and a control switch;

12. The charging circuit of claim 9, wherein the controller selects at least one wireless charging management chip from the at least two wireless charging management chips to be in an idle state when the temperature of the at least two wireless charging management chips is less than a third temperature threshold, wherein the third temperature threshold is less than the first temperature threshold.

13. The charging circuit of claim 9, wherein the controller selects at least one wireless charging management chip from the at least two wireless charging management chips to be in an idle state when the temperature of the at least two wireless charging management chips is less than a third temperature threshold and the input voltage of the at least two wireless charging management chips is less than a second voltage threshold, wherein the third temperature threshold is less than a first temperature threshold and the second voltage threshold is greater than the first voltage threshold.

14. The charging circuit of claim 9, wherein the charging circuit further comprises a voltage step-down circuit and a selection switch;

15. An electronic device comprising a battery and a charging circuit, the charging circuit as claimed in any one of claims 1-14.

16. A charging method is applied to electronic equipment, and is characterized in that the electronic equipment comprises a charging circuit and a battery, wherein the charging circuit comprises a wired charging module, a public charging management chip, a wireless charging module and a wireless charging management chip;

the method comprises the following steps:

in the process of wirelessly charging the battery, when the electric quantity of the battery is lower than a preset electric quantity threshold value or the electronic equipment is in a shutdown state, the voltage output by the wireless charging module is smaller than a first voltage threshold value, and when the electric quantity of the battery is larger than the preset electric quantity threshold value, the voltage output by the wireless charging module is larger than the first voltage threshold value;

17. The charging method of claim 16, further comprising:

acquiring the temperature of each wireless charging management chip in the at least two wireless charging management chips;

and controlling the working states of the at least two wireless charging management chips according to the temperature.

18. A charging method is applied to electronic equipment, and is characterized in that the electronic equipment comprises a charging circuit and a battery, wherein the charging circuit comprises a wired charging module, a public charging management chip, a wireless charging module and a wireless charging management chip;

the method comprises the following steps:

when the voltage of the output signal of the wireless charging module is smaller than or equal to a first voltage threshold, the output signal of the wireless charging module is output through the second output end, wherein when the temperature of a wireless charging management chip in the at least two wireless charging management chips is larger than a first temperature threshold, the controller controls the wireless charging management chip with the temperature larger than the first temperature threshold to be switched to an idle state; when the temperature of the wireless charging management chip in the idle state is lower than a second temperature threshold, the controller switches the wireless charging management chip in the idle state to a working state, wherein the second temperature threshold is smaller than the first temperature threshold.

19. A computer-readable storage medium, on which a computer program is stored, which, when executed by a controller, carries out the steps of the charging method according to any one of claims 16 to 18.