CN109980721B

CN109980721B - Quick charge detection circuit and method and computer storage medium

Info

Publication number: CN109980721B
Application number: CN201910208080.2A
Authority: CN
Inventors: 范建功
Original assignee: Nubia Technology Co Ltd
Current assignee: Nubia Technology Co Ltd
Priority date: 2019-03-19
Filing date: 2019-03-19
Publication date: 2021-11-16
Anticipated expiration: 2039-03-19
Also published as: CN109980721A

Abstract

The invention discloses a quick charge detection circuit and a method thereof, wherein a quick analysis and solution terminal can not support a quick charge circuit comprising a Central Processing Unit (CPU) and a charge management chip (PMI), a D-end of an external interface is electrically connected with a switch tube N2, a switch tube N4 and a switch tube N6, and a D + end of the external interface is electrically connected with a switch tube N1, a switch tube N3 and a switch tube N5; according to the circuit and the method for rapidly analyzing and solving the problem that the terminal cannot support rapid charging, the module with the problem is rapidly judged through three operations of software and hardware, and a certain link can be closed according to actual requirements, so that the mobile phone can be kept rapidly charged as required, the user experience is improved, the user can be guided to perform after-sale maintenance, the after-sale efficiency is improved, and multiple purposes are achieved.

Description

Quick charge detection circuit and method and computer storage medium

Technical Field

The invention relates to the technical field of charging technology processing of smart phones, in particular to a quick charging detection circuit and method and a computer storage medium.

Background

The smart phone has a strong growth speed since the appearance of the smart phone, the appearances of various mobile phones with various functions and designs are infinite, mobile phones with various configurations are also coming out faster and faster, but the problems of battery capacity and charging cannot be solved effectively all the time, and in order to reduce the charging time of users, all large mobile phone manufacturers adopt schemes (such as high pass) of scheme providers or self-provided quick charging schemes, so that the charging speed of the mobile phones of the users is greatly accelerated, but the mobile phones can not support quick charging clearly in actual use of the users, but the mobile phones can not be quickly charged all the time in the charging process and are always in standard charging, thereby influencing the use experience of the users and reducing the good feeling of brands.

When a smart phone user with a quick charging scheme does not perform quick charging on a mobile phone, a general method is to find an after-sale part of the mobile phone for processing, but the after-sale part of the mobile phone for processing the problem is to disassemble and maintain the mobile phone, so that the use experience of the mobile phone user is greatly influenced, and meanwhile, the quick charging function failure caused by what parts are at the bottom cannot be quickly and accurately known.

Disclosure of Invention

The invention aims to provide a circuit and a method for rapidly analyzing and solving the problem that a terminal cannot support rapid charging, and the circuit and the method have the advantages that a certain link can be closed according to actual requirements, so that a mobile phone can be kept rapidly charged according to needs, the user experience is improved, and the problems in the prior art can be solved.

In order to achieve the purpose, the invention provides the following technical scheme: a circuit for quickly analyzing and resolving the inability of a terminal to support fast charging for use in fast charging a mobile terminal, comprising: the intelligent charging system comprises a Central Processing Unit (CPU) and a charging management chip (PMI), wherein the charging management chip (PMI) is electrically connected with an external interface, a positive voltage data port D + of the external interface is electrically connected with a first switch tube N1, a third switch tube N3 and a fourth switch tube N5, a negative voltage data port of the external interface is electrically connected to a second switch tube N2, a fourth switch tube N4 and a sixth switch tube N6, wherein the output end of the second switch tube N2 is electrically connected with the CPU, the output end of the fourth switch tube N4 is electrically connected with the charging management chip (PMI), the output end of the sixth switch tube N6 is electrically connected with other charging modules, the output end of the first switch tube N1 is electrically connected with the CPU, the output end of the third switch tube N3 is electrically connected with the charging management chip (PMI), the output end of the fifth switch tube N5 is electrically connected with other charging modules, and the output of the charging management chip (PMI) is connected with a battery.

Furthermore, the charge management chip PMI is further connected with a GND terminal of an external interface.

Furthermore, the GPIO-1 port of the charging management chip PMI is electrically connected to the switch tube N1 and the switch tube N2.

Furthermore, the GPIO-2 port of the charging management chip PMI is electrically connected to the switch tube N3 and the switch tube N4.

Furthermore, the GPIO-3 port of the charging management chip PMI is electrically connected to the switch tube N5 and the switch tube N6.

Furthermore, the switching tube N1, the switching tube N2, the switching tube N3, the switching tube N4, the switching tube N5 and the switching tube N6 are all NMOS type switching tubes.

Further, it is characterized in that: and the three GPIO ports of the charging management chip PMI in the default state are all high potential.

Furthermore, the external interface is a Type-c interface.

The invention also discloses an operation method for quickly analyzing and solving the problem that the terminal cannot support the quick charging circuit, which comprises the following steps:

setting the voltage of the D-end of the external interface to be the same as the voltage value of the D + end of the external interface; setting an upper limit value of the charging current according to a scheme provided by a charging scheme provider; connecting the whole circuit to a quick charger provided by a charging scheme provider; detecting the current value at the time of charging and comparing it with the charging current upper limit value mentioned in S2; and detecting the potentials of three GPIO ports of the charge management chip PMI.

The invention also discloses a computer storage medium, which is characterized in that the storage medium stores a computer program with elastic element state change, and the computer program can be executed by at least one processor to realize the steps of the operation method for quickly analyzing and solving the problem that the terminal cannot support the quick charging circuit.

Compared with the prior art, the invention has the following beneficial effects: according to the circuit and the method for rapidly analyzing and solving the problem that the terminal cannot support rapid charging, the module with the problem is rapidly judged through three operations of software and hardware, and a certain link can be closed according to actual requirements, so that the mobile phone can be kept rapidly charged as required, the user experience is improved, the user can be guided to perform after-sale maintenance, the after-sale efficiency is improved, and multiple purposes are achieved.

Drawings

The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. In the drawings, like reference numerals designate corresponding parts throughout the different views.

Fig. 1 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present application;

fig. 2 is a communication network system architecture diagram according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a circuit configuration for fast analyzing and resolving the problem of the terminal being unable to support fast charging according to an embodiment of the present application;

fig. 4 is a flowchart illustrating a method for fast analyzing and solving the problem of the terminal being unable to support the fast charging circuit operation according to the present application.

The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the 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 invention.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. It should be noted that the detailed description set forth in connection with the appended drawings is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. The apparatus embodiments and method embodiments described herein are described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, units, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. The terms first, second, etc. in the description and claims of the present invention and in the drawings of the specification, if used in describing various aspects, are used for distinguishing between different objects and not for describing a particular order.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

The terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a digital TV, a desktop computer, and the like.

The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.

Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, a/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile terminal in detail with reference to fig. 1:

the radio frequency unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex Long Term Evolution), and TDD-LTE (Time Division duplex Long Term Evolution).

WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.

Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.

The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.

Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.

In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based is described below.

Referring to fig. 2, fig. 2 is an architecture diagram of a communication Network system according to an embodiment of the present invention, where the communication Network system is an LTE system of a universal mobile telecommunications technology, and the LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and an IP service 204 of an operator, which are in communication connection in sequence.

Specifically, the UE201 may be the terminal 100 described above, and is not described herein again.

The E-UTRAN202 includes eNodeB2021 and other eNodeBs 2022, among others. Among them, the eNodeB2021 may be connected with other eNodeB2022 through backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to the EPC 203.

The EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving gateway) 2034, a PGW (PDN gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, and the like. The MME2031 is a control node that handles signaling between the UE201 and the EPC203, and provides bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location register (not shown) and holds subscriber specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and PCRF2036 is a policy and charging control policy decision point for traffic data flow and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).

The IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.

Although the LTE system is described as an example, it should be understood by those skilled in the art that the present invention is not limited to the LTE system, but may also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.

Based on the above mobile terminal hardware structure and communication network system, the present invention provides various embodiments of the method.

Please refer to the circuit shown in fig. 3, which is used for rapidly analyzing and solving the problem that a terminal cannot support rapid charging, and includes a central processing unit CPU and a charging management chip PMI, the charging management chip PMI is electrically connected to an external interface, a D-terminal of the external interface is electrically connected to a switch tube N2, a switch tube N4 and a switch tube N6, the switch tube N2, the switch tube N4 and the switch tube N6 are all NMOS type switch tubes, wherein an output terminal of the switch tube N2 is electrically connected to the central processing unit CPU, an output terminal of the switch tube N4 is electrically connected to the charging management chip PMI, an output terminal of the switch tube N6 is electrically connected to other charging modules, a D + terminal of the external interface is electrically connected to a switch tube N1, a switch tube N3 and a switch tube N5, the switch tube N1, a switch tube N3 and a switch tube N5 are all NMOS type switch tubes, an output terminal of the switch tube N1 is electrically connected to the central processing unit CPU, an output terminal of the switch tube N3 is electrically connected to the charging management chip PMI, the GPIO-1 port of the charging management chip PMI is electrically connected with the switch tube N1 and the switch tube N2, the GPIO-2 port of the charging management chip PMI is electrically connected with the switch tube N3 and the switch tube N4, the GPIO-3 port of the charging management chip PMI is electrically connected with the switch tube N5 and the switch tube N6, the output end of the switch tube N5 is electrically connected with other charging modules, the output of the charging management chip PMI is connected with a battery, and the charging management chip PMI is further connected with the GND end of the external interface.

A method for rapidly analyzing and resolving the operation of a terminal incapable of supporting a fast charging circuit, as shown in fig. 4, comprises the steps of: firstly, setting the voltage of the D-end of the external interface to be the same as the voltage value of the D + end of the external interface; secondly, setting an upper limit value of the charging current according to a scheme provided by a charging scheme provider; thirdly, connecting the whole circuit to a quick charger provided by a charging scheme provider; a fourth step of detecting a current value at the time of charging and comparing the detected current value with the charging current upper limit value mentioned in S2; fifthly, detecting the potentials of three GPIO ports of the PMI, wherein the three GPIO ports of the PMI are all high potentials in a default state; in the examples, an upper limit value of a charging current is set to 1.5A according to a scheme provided by a charging scheme provider (high-pass)

When a high-pass quick-charging charger is inserted, the system can detect the D-end and the D + end of the external interface, if the system detects that the current can not exceed 1.5A all the time, the system is identified as DCP and is always continuous, at the moment, the GPIO-1 port of the PMI can output low potential through software design, the GPIO-2 port of the PMI and the GPIO-3 port of the PMI output high potential, and the three GPIO ports of the PMI in the charging management chip are all high potential in a default state, so that the influence of the CPU on charging can be eliminated, because in the high-pass design scheme, the CPU only participates in enumeration operation and does not participate in charging management, the GPIO-1 low potential of the PMI can close the switch tube N1 and the switch tube N2, and at the moment, if the charging current is detected to be normal, the CPU is used for indicating that the problem occurs at the moment, and the mobile phone can be normally charged by the mode;

when a high-pass quick-charging charger is inserted, the system can detect an external interface D-end and an external interface D + end, if the system detects that the current is still maintained below 1.5A, the CPU is not abnormal, software pulls a GPIO-1 port of a charging management chip PMI to a high potential, pulls a GPIO-2 port of the charging management chip PMI to a low potential, pulls a GPIO-3 port of the charging management chip PMI to the high potential, the charging is processed by the charging management chip PMI, at the moment, the mobile phone is connected with a computer through the mobile phone to observe whether a computer end has a plate sign or not, if the plate sign appears, the charging management chip PMI is abnormal, and the charging management chip PMI is replaced;

when a high-pass quick-charging charger is inserted, the system can detect an external interface D-end and an external interface D + end, if software outputs a low potential from a GPIO-1 port of a charging management chip PMI, a GPIO-2 port of the charging management chip PMI and a GPIO-3 port of the charging management chip PMI output a high potential operation, and the software pulls a GPIO-1 port of the charging management chip PMI to a high potential, pulls a GPIO-2 port of the charging management chip PMI to a low potential, pulls a GPIO-3 port of the charging management chip PMI to the high potential, then the charging current is still lower than 1.5A, illustrates that the problem does not appear on a central processing unit CPU and the charging management chip PMI, a mobile phone manufacturer may adopt other schemes compatible with the high-pass scheme, and occupy paths of the external interface D-end and the external interface D + end, and at the moment, the software can pull the GPIO-1 port of the charging management chip PMI and the GPIO + end of the charging management chip PMI to the high-pass scheme And pulling the port 2 to a high potential, pulling the GPIO-3 port of the PMI to a low potential, recovering charging at the moment, and if the computer can enumerate normally, indicating that the problem appears on the external charging module, and replacing the external module.

The circuit for rapidly analyzing and solving the problem that a terminal cannot support rapid charging comprises a Central Processing Unit (CPU) and a charging management chip (PMI), wherein the charging management chip (PMI) is electrically connected with an external interface, a D-end of the external interface is electrically connected with a switch tube N2, a switch tube N4 and a switch tube N6, a D + end of the external interface is electrically connected with a switch tube N1, a switch tube N3 and a switch tube N5, wherein the switch tubes are NMOS switch tubes, an output end of a switch tube N1 is electrically connected with the CPU, an output end of a switch tube N2 is electrically connected with the CPU, an output end of the switch tube N3 is electrically connected with the charging management chip PMI, an output end of a switch tube N4 is electrically connected with the charging management chip PMI, an output end of the switch tube N5 is electrically connected with other charging modules, an output end of the switch tube N6 is electrically connected with other charging modules, and a GPIO-1 port of the charging management chip PMI is electrically connected with the switch tube N1 and the switch tube N2, the GPIO-2 port of the charging management chip PMI is electrically connected with the switch tube N3 and the switch tube N4, the GPIO-3 port of the charging management chip PMI is electrically connected with the switch tube N5 and the switch tube N6, and the charging management chip PMI is also connected with the GND end of the external interface; three GPIO ports of a PMI (charge management chip) are all high potential in a default state, the upper limit value of a charging current is set to be 1.5A according to a scheme provided by a charging scheme provider (high pass), wherein when a high pass quick charging charger is inserted, a system can detect an external interface D-end and an external interface D + end, if the system detects that the current cannot exceed 1.5A all the time, the system is identified as DCP and continues, at the moment, the GPIO-1 port of the PMI can output low potential through software design, the GPIO-2 port of the PMI and the GPIO-3 port of the PMI output high potential, and the three GPIO ports of the PMI in the default state are all high potential, so that the influence of a CPU (central processing unit) on charging can be eliminated, and if the charging current is detected to be normal, the CPU is indicated to have a problem at the moment, in addition, the mobile phone can be normally charged by the method; if the system detects that the current is still maintained below 1.5A, which indicates that the CPU is not abnormal, the software pulls the GPIO-1 port of the PMI to a high potential, pulls the GPIO-2 port of the PMI to a low potential, pulls the GPIO-3 port of the PMI to a high potential, connects the mobile phone to a computer through the mobile phone, observes whether a drive symbol appears at the computer end, and indicates that the PMI is abnormal if the drive symbol appears; if the charging current is still lower than 1.5A, the problem is not caused to occur on a Central Processing Unit (CPU) and a charging management chip (PMI), other schemes compatible with a high-pass scheme may be adopted by a mobile phone manufacturer, and paths of a D-end of an external interface and a D + end of an external interface are occupied, at the moment, software pulls a GPIO-1 port of the charging management chip (PMI) and a GPIO-2 port of the charging management chip (PMI) to a high potential, pulls a GPIO-3 port of the charging management chip (PMI) to a low potential, at the moment, charging is recovered, and the problem is caused to occur on an external charging module if a computer can be normally enumerated.

In summary, the following steps: according to the circuit and the method for rapidly analyzing and solving the problem that the terminal cannot support rapid charging, the module with the problem is rapidly judged through three operations of software and hardware, and a certain link can be closed according to actual requirements, so that the mobile phone can be kept rapidly charged as required, the user experience is improved, the user can be guided to perform after-sale maintenance, the after-sale efficiency is improved, and multiple purposes are achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. A fast charge detection circuit, comprising: the intelligent charging system comprises a Central Processing Unit (CPU) and a charging management chip (PMI), wherein the charging management chip (PMI) is electrically connected with an external interface, a positive voltage data port D + of the external interface is electrically connected with a first switch tube N1, a third switch tube N3 and a fourth switch tube N5, a negative voltage data port of the external interface is electrically connected with a second switch tube N2, a fourth switch tube N4 and a sixth switch tube N6, wherein the output end of the second switch tube N2 is electrically connected with the CPU, the output end of the fourth switch tube N4 is electrically connected with the charging management chip (PMI), the output end of the sixth switch tube N6 is electrically connected with other charging modules, the output end of the first switch tube N1 is electrically connected with the CPU, the output end of the third switch tube N3 is electrically connected with the charging management chip (PMI), the output end of the fifth switch tube N5 is electrically connected with other charging modules, and the output end of the charging management chip (PMI) is connected with a battery; the GPIO-1 port of the charging management chip PMI is electrically connected with the control ends of the switch tube N1 and the switch tube N2, the GPIO-2 port of the charging management chip PMI is electrically connected with the control ends of the switch tube N3 and the switch tube N4, and the GPIO-3 port of the charging management chip PMI is electrically connected with the control ends of the switch tube N5 and the switch tube N6 to respectively control the on-off of each switch tube, so that the influences of the central processing unit CPU, the charging management chip PMI and other charging modules on quick charging are sequentially checked.

2. The fast charge detection circuit of claim 1, wherein: and the charging management chip PMI is also connected with the GND end of the external interface.

3. The fast charge detection circuit of claim 2, wherein: the switch tube N1, the switch tube N2, the switch tube N3, the switch tube N4, the switch tube N5 and the switch tube N6 are NMOS type switch tubes.

4. The fast charge detection circuit of claim 3, wherein: and three GPIO ports of the charging management chip PMI are all high potential in a default state.

5. The rapid charge detection circuit according to claim 4, wherein the external interface is a Type-c interface.

6. A quick charge detection method is characterized in that: the fast charge detection circuit applied to claim 1, comprising the steps of:

setting the voltage of the D-end of the external interface to be the same as the voltage value of the D + end of the external interface; setting an upper limit value of the charging current according to a scheme provided by a charging scheme provider; connecting the whole circuit to a quick charger provided by a charging scheme provider; detecting a current value during charging and comparing the current value with an upper limit value of the charging current; and detecting the potentials of three GPIO ports of the charge management chip PMI.

7. A computer storage medium, characterized in that the storage medium stores a computer program executable by at least one processor to implement the steps of the method according to claim 6.