CN108964188B

CN108964188B - Mobile terminal charging control circuit, charging circuit and electronic equipment

Info

Publication number: CN108964188B
Application number: CN201810819203.1A
Authority: CN
Inventors: 范建功; 王佳
Original assignee: Nanjing Car Chain Technology Co Ltd
Current assignee: Tianjin Artificial Intelligence general application system (Tianjin) Co.,Ltd.
Priority date: 2018-07-24
Filing date: 2018-07-24
Publication date: 2020-12-18
Anticipated expiration: 2038-07-24
Also published as: CN108964188A

Abstract

The invention provides a mobile terminal charging control circuit, a charging circuit and electronic equipment, wherein the mobile terminal comprises an external interface and a charging controller, the external interface comprises two charging terminals, the charging controller comprises an output end and two input ends, and the mobile terminal charging control circuit comprises: a terminal detection circuit and a switching circuit; the input end of the terminal detection circuit is connected with the output end of the charging controller; the switching circuit is positioned between two input ends of the charging controller and two charging terminals and connects the charging terminals with any one input end of the charging controller; and the output end of the terminal detection circuit is connected with the control end of the switching circuit. According to the technical scheme provided by the invention, the charging control circuit is additionally arranged between the external interface and the charging controller, so that the problem that the Type-C interface cannot be plugged in a positive and negative mode is solved.

Description

Mobile terminal charging control circuit, charging circuit and electronic equipment

Technical Field

The embodiment of the invention relates to the field of charging, in particular to a mobile terminal charging control circuit, a charging circuit and electronic equipment.

Background

The smart phone becomes an indispensable tool in daily life, and the importance of the smart phone is increasingly promoted. The power consumption of the smart phone becomes a common problem in the industry, and the convenience of charging also becomes one of the directions concerned by the user.

The charging interface of the prior general Micro-USB interface type leads a user to align the direction to successfully insert a charging head into a mobile phone due to the unicity of the direction, thereby bringing great inconvenience to the user. In order to change the current situation, a Type-C Type interface is developed, and the maximum characteristic of the Type-C double-sided pluggable interface is that the USB interface is supported to be plugged in two sides, so that the worldwide problem that the USB is not plugged correctly for ever is formally solved, and great convenience is brought by the fact that the front side and the back side are plugged conveniently.

However, a very practical problem can be encountered in life, that is, when a Type-C data line is used for inserting the mobile phone, only one direction can be charged, and the mobile phone cannot be charged when a face is replaced, so that the situation of one-way chargeable property is returned, and inconvenience is brought to a user.

The above description of the discovery process of the problems is only for the purpose of assisting understanding of the technical solutions of the present invention, and does not represent an admission that the above is prior art.

Disclosure of Invention

In order to solve the technical problem or at least partially solve the technical problem, embodiments of the present invention provide a charging control circuit, a charging circuit and an electronic device for a mobile terminal, which solve the problem that a Type-C interface cannot be plugged in a forward or reverse direction.

In order to achieve the above object, the present invention provides a mobile terminal charging control circuit, where the mobile terminal includes an external interface and a charging controller, the external interface includes two charging terminals, and the charging controller includes an output terminal and two input terminals, including: a terminal detection circuit and a switching circuit;

the input end of the terminal detection circuit is connected with the output end of the charging controller;

the switching circuit is positioned between two input ends of the charging controller and two charging terminals and connects the charging terminals with any one input end of the charging controller;

and the output end of the terminal detection circuit is connected with the control end of the switching circuit.

Optionally, the terminal detection circuit includes: a level detection module;

the input end of the terminal detection module is connected with the output end of the charging controller, the output end of the terminal detection module is connected with the control end of the switching circuit, and the terminal detection module detects a level signal and outputs the level signal to the switching circuit.

Optionally, the terminal detection circuit includes: a processor and an inverter circuit;

the input end of the processor is connected with the output end of the charging controller, and the output end of the processor is connected with the input end of the inverter circuit;

and the output end of the phase inverter is connected with the control end of the switching circuit.

Optionally, the switching circuit includes: the first switch tube and the second switch tube;

the grid electrode of the first switch tube is connected with the grid electrode of the second switch tube, the source electrode of the first switch tube is respectively connected with a first charging terminal of an external interface and a first input end of a charging controller, and the drain electrode of the first switch tube is connected with the source electrode;

the source electrode of the second switch tube is respectively connected with a second charging terminal of the external interface and a second input terminal of the charging controller, and the drain electrode of the second switch tube is connected with the drain electrode of the first switch tube;

and the grid electrode of the first switching tube is used as a control terminal of the control circuit.

Optionally, the first switch tube is a PMOS switch tube, and the second switch tube is an NMOS switch tube.

Optionally, the inverter circuit includes: a third switching tube and a fourth switching tube;

the drain electrode of the third switching tube is connected with the drain electrode of the fourth switching tube, and the source electrode of the third switching tube is connected with a power supply;

the grid electrode of the fourth switching tube is connected with the grid electrode of the third switching tube, and the source electrode of the fourth switching tube is grounded;

the drain electrode of the third switching tube is used as an input terminal of the inverter circuit;

and the drain electrode of the third switching tube is used as the output end of the inverter circuit.

Optionally, the third switching tube is a PMOS switching tube, and the fourth switching tube is an NMOS switching tube.

In order to achieve the above object, the present invention further provides a mobile terminal charging circuit, which includes any one of the above mobile terminal charging control circuits.

In order to achieve the above object, the present invention further provides an electronic device, which includes the mobile terminal charging circuit, an external interface and a charging controller;

the external interface is connected with the charging controller through a charging circuit of the mobile terminal.

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

Compared with the closest prior art, the mobile terminal charging control circuit, the charging circuit and the mobile terminal provided by the embodiment of the invention have the advantages that the charging control circuit is additionally arranged between the external interface and the power management chip, when one charging terminal of the external interface is disconnected, the charging terminal can be connected to the other charging terminal through the charging control circuit, and equipment can be normally charged when one charging terminal of the external interface is disconnected.

According to the technical scheme provided by the embodiment of the invention, the charging control circuit is additionally arranged between the external interface and the power management chip, so that the problem that the Type-C interface cannot be plugged in a positive and negative mode is solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic hardware structure of an alternative mobile terminal for implementing various embodiments of the present invention;

FIG. 2 is a diagram of a communication system of the mobile terminal of FIG. 1;

fig. 3 is a schematic diagram of a mobile terminal charging control circuit according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a mobile terminal charging control circuit according to another embodiment of the present invention;

fig. 5 is a schematic diagram of a mobile terminal charging control circuit according to another embodiment of the present invention;

fig. 6 is a schematic diagram of a mobile terminal charging control circuit according to another embodiment of the present invention;

FIG. 7 is a schematic diagram illustrating the definition of internal signals of Type-C male header;

FIG. 8 is a schematic diagram illustrating the definition of signals inside a Type-C female connector;

fig. 9 is a schematic structural diagram of a mobile terminal according to another embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

A mobile terminal implementing various embodiments of the present invention will now be described with reference to the accompanying drawings. 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 themselves. Thus, "module" and "component" may be used in a mixture.

The mobile 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 smart phone, a notebook computer, a Digital broadcast receiver, a PDA (Personal Digital Assistant), a PAD (Portable Android Device), a PMP (Portable Media Player), a navigation Device, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like. In the following, it is assumed that the terminal is a mobile terminal. However, it will be understood by those skilled in the art that the configuration according to the embodiment of the present invention can be applied to a fixed type terminal in addition to elements particularly used for moving purposes.

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

The mobile terminal 100 may include a wireless communication unit 110, an a/V (audio/video) input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, an interface unit 170, a controller 180, and a power supply unit 190, etc. Fig. 1 illustrates a mobile terminal having various components, but it is to be understood that not all illustrated components are required to be implemented. More or fewer components may alternatively be implemented. Elements of the mobile terminal will be described in detail below.

The wireless communication unit 110 typically includes one or more components that allow radio communication between the mobile terminal 100 and a wireless communication system or network. For example, the wireless communication unit may include at least one of a broadcast receiving module 111, a mobile communication module 112, a wireless internet module 113, a short-range communication module 114, and a location information module 115.

The broadcast receiving module 111 receives a broadcast signal and/or broadcast associated information from an external broadcast management server via a broadcast channel. The broadcast channel may include a satellite channel and/or a terrestrial channel. The broadcast management server may be a server that generates and transmits a broadcast signal and/or broadcast associated information or a server that receives a previously generated broadcast signal and/or broadcast associated information and transmits it to a terminal. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and the like. Also, the broadcast signal may further include a broadcast signal combined with a TV or radio broadcast signal. The broadcast associated information may also be provided via a mobile communication network, and in this case, the broadcast associated information may be received by the mobile communication module 112. The broadcast signal may exist in various forms, for example, it may exist in the form of an Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB), an Electronic Service Guide (ESG) of digital video broadcasting-handheld (DVB-H), and the like. The broadcast receiving module 111 may receive a signal broadcast by using various types of broadcasting systems. In particular, the broadcast receiving module 111 may receive digital broadcasting by using a digital broadcasting system such as a digital broadcasting-terrestrial (DMB-T), digital multimedia broadcasting-satellite (DMB-S), digital video broadcasting-handheld (DVB-H), a data broadcasting system of forward link media (MediaFLO), a terrestrial digital broadcasting integrated service (ISDB-T), and the like. The broadcast receiving module 111 may be constructed to be suitable for various broadcasting systems that provide broadcast signals as well as the above-mentioned digital broadcasting systems. The broadcast signal and/or broadcast associated information received via the broadcast receiving module 111 may be stored in the memory 160 (or other type of storage medium).

The mobile communication module 112 transmits and/or receives radio signals to and/or from at least one of a base station (e.g., access point, node B, etc.), an external terminal, and a server. Such radio signals may include voice call signals, video call signals, or various types of data transmitted and/or received according to text and/or multimedia messages.

The wireless internet module 113 supports wireless internet access of the mobile terminal. The module may be internally or externally coupled to the terminal. The wireless internet access technology to which the module relates may include WLAN (wireless LAN) (Wi-Fi), Wibro (wireless broadband), Wimax (worldwide interoperability for microwave access), HSDPA (high speed downlink packet access), and the like.

The short-range communication module 114 is a module for supporting short-range communication. Some examples of short-range communication technologies include bluetooth (TM), Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), zigbee (TM), and the like.

The location information module 115 is a module for checking or acquiring location information of the mobile terminal. A typical example of the location information module is a GPS (global positioning system). According to the current technology, the location information module 115 calculates distance information and accurate time information from three or more satellites and applies triangulation to the calculated information, thereby accurately calculating three-dimensional current location information according to longitude, latitude, and altitude. Currently, a method for calculating position and time information uses three satellites and corrects an error of the calculated position and time information by using another satellite. In addition, the position information module 115 can calculate the speed information by continuously calculating the current position information in real time.

The a/V input unit 120 is used to receive an audio or video signal. The a/V input unit 120 may include a camera 121 and a microphone 122, and the camera 121 processes image data of still pictures or video obtained by an image capturing apparatus in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 151. The image frames processed by the cameras 121 may be stored in the memory 160 (or other storage medium) or transmitted via the wireless communication unit 110, and two or more cameras 121 may be provided according to the construction of the mobile terminal. The microphone 122 may receive sounds (audio data) via the microphone 122 in a phone call mode, a recording mode, a voice recognition mode, or the like, and is 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 mobile communication module 112 in case of a phone call mode. The microphone 122 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 user input unit 130 may generate key input data according to a command input by a user to control various operations of the mobile terminal. The user input unit 130 allows a user to input various types of information, and may include a keyboard, dome sheet, touch pad (e.g., a touch-sensitive member that detects changes in resistance, pressure, capacitance, and the like due to being touched), scroll wheel, joystick, and the like. In particular, when the touch pad is superimposed on the display unit 151 in the form of a layer, a touch screen may be formed.

The sensing unit 140 detects a current state of the mobile terminal 100 (e.g., an open or closed state of the mobile terminal 100), a position of the mobile terminal 100, presence or absence of contact (i.e., touch input) by a user with the mobile terminal 100, an orientation of the mobile terminal 100, acceleration or deceleration movement and direction of the mobile terminal 100, and the like, and generates a command or signal for controlling an operation of the mobile terminal 100. For example, when the mobile terminal 100 is implemented as a slide-type mobile phone, the sensing unit 140 may sense whether the slide-type phone is opened or closed. In addition, the sensing unit 140 can detect whether the power supply unit 190 supplies power or whether the interface unit 170 is coupled with an external device. The sensing unit 140 may include a proximity sensor 141.

The interface unit 170 serves to connect the mobile terminal 100 with at least one external device. 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 identification module may store various information for authenticating a user using the mobile terminal 100 and may include a User Identity Module (UIM), a Subscriber Identity Module (SIM), a Universal Subscriber Identity Module (USIM), and the like. In addition, a device having an identification module (hereinafter, referred to as an "identification device") may take the form of a smart card, and thus, the identification device may be connected with the mobile terminal 100 via a port or other connection means. The interface unit 170 may be used to receive input (e.g., data information, power, etc.) from an external device 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 and the external device. In addition, when the mobile terminal 100 is connected with an external cradle, the interface unit 170 may serve as a path through which power is supplied from the cradle to the mobile terminal 100 or may serve as a path through which various command signals input from the cradle are transmitted to the mobile terminal. Various command signals or power input from the cradle may be used as signals for recognizing whether the mobile terminal is accurately mounted on the cradle.

The output unit 150 is configured to provide output signals (e.g., audio signals, video signals, alarm signals, vibration signals, etc.) in a visual, audio, and/or tactile manner. The output unit 150 may include a display unit 151, an audio output module 152, an alarm unit 153, and the like.

The display unit 151 may display information processed in the mobile terminal 100. For example, when the mobile terminal 100 is in a phone call mode, the display unit 151 may display a User Interface (UI) or a Graphical User Interface (GUI) related to a call or other communication (e.g., text messaging, multimedia file downloading, etc.). When the mobile terminal 100 is in a video call mode or an image capturing mode, the display unit 151 may display a captured image and/or a received image, a UI or GUI showing a video or an image and related functions, and the like.

Meanwhile, when the display unit 151 and the touch pad are overlapped with each other in the form of a layer to form a touch screen, the display unit 151 may serve as an input device and an output device. The display unit 151 may include at least one of a Liquid Crystal Display (LCD), a thin film transistor LCD (TFT-LCD), an Organic Light Emitting Diode (OLED) display, a flexible display, a three-dimensional (3D) display, and the like. Some of these displays may be configured to be transparent to allow a user to view from the outside, which may be referred to as transparent displays, and a typical transparent display may be, for example, a TOLED (transparent organic light emitting diode) display or the like. Depending on the particular desired implementation, the mobile terminal 100 may include two or more display units (or other display devices), for example, the mobile terminal may include an external display unit (not shown) and an internal display unit (not shown). The touch screen may be used to detect a touch input pressure as well as a touch input position and a touch input area.

The audio output module 152 may convert audio data received by the wireless communication unit 110 or stored in the memory 160 into an audio signal and output as sound when the mobile terminal 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 module 152 may 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 module 152 may include a speaker, a buzzer, and the like.

The alarm unit 153 may provide an output to notify the mobile terminal 100 of the occurrence of an event. Typical events may include call reception, message reception, key signal input, touch input, and the like. In addition to audio or video output, the alarm unit 153 may provide output in different ways to notify the occurrence of an event. For example, the alarm unit 153 may provide an output in the form of vibration, and when a call, a message, or some other incoming communication (communicating communication) is received, the alarm unit 153 may provide a tactile output (i.e., vibration) to inform the user thereof. By providing such a tactile output, the user can recognize the occurrence of various events even when the user's mobile phone is in the user's pocket. The alarm unit 153 may also provide an output notifying the occurrence of an event via the display unit 151 or the audio output module 152.

The memory 160 may store software programs and the like for processing and controlling operations performed by the controller 180, or may temporarily store data (e.g., a phonebook, messages, still images, videos, and the like) that has been or will be output. Also, the memory 160 may store data regarding various ways of vibration and audio signals output when a touch is applied to the touch screen.

The memory 160 may include at least one type of storage medium including a flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, and the like. Also, the mobile terminal 100 may cooperate with a network storage device that performs a storage function of the memory 160 through a network connection.

The controller 180 generally controls the overall operation of the mobile terminal. For example, the controller 180 performs control and processing related to voice calls, data communications, video calls, and the like. In addition, the controller 180 may include a multimedia module 181 for reproducing (or playing back) multimedia data, and the multimedia module 181 may be constructed within the controller 180 or may be constructed separately from the controller 180. The controller 180 may perform a pattern recognition process to recognize a handwriting input or a picture drawing input performed on the touch screen as a character or an image.

The power supply unit 190 receives external power or internal power and provides appropriate power required to operate various elements and components under the control of the controller 180.

The various embodiments described herein may be implemented in a computer-readable medium using, for example, computer software, hardware, or any combination thereof. For a hardware implementation, the embodiments described herein may be implemented using at least one of an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a processor, a controller, a microcontroller, a microprocessor, an electronic unit designed to perform the functions described herein, and in some cases, such embodiments may be implemented in the controller 180. For a software implementation, the implementation such as a process or a function may be implemented with a separate software module that allows performing at least one function or operation. The software codes may be implemented by software applications (or programs) written in any suitable programming language, which may be stored in the memory 160 and executed by the controller 180.

Up to this point, mobile terminals have been described in terms of their functionality. Hereinafter, a slide-type mobile terminal among various types of mobile terminals, such as a folder-type, bar-type, swing-type, slide-type mobile terminal, and the like, will be described as an example for the sake of brevity. Accordingly, the present invention can be applied to any type of mobile terminal, and is not limited to a slide type mobile terminal.

The mobile terminal 100 as shown in fig. 1 may be configured to operate with communication systems such as wired and wireless communication systems and satellite-based communication systems that transmit data via frames or packets.

A communication system in which a mobile terminal according to the present invention is operable will now be described with reference to fig. 2.

Such communication systems may use different air interfaces and/or physical layers. For example, the air interface used by the communication system includes, for example, Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), and Universal Mobile Telecommunications System (UMTS) (in particular, Long Term Evolution (LTE)), global system for mobile communications (GSM), and the like. By way of non-limiting example, the following description relates to a CDMA communication system, but such teachings are equally applicable to other types of systems.

Referring to fig. 2, the CDMA wireless communication system may include a plurality of mobile terminals 100, a plurality of Base Stations (BSs) 270, Base Station Controllers (BSCs) 275, and a Mobile Switching Center (MSC) 280. The MSC280 is configured to interface with a Public Switched Telephone Network (PSTN) 290. The MSC280 is also configured to interface with a BSC275, which may be coupled to the base station 270 via a backhaul. The backhaul may be constructed according to any of several known interfaces including, for example, E1/T1, ATM, IP, PPP, frame Relay, HDSL, ADSL, or xDSL. It will be understood that a system as shown in fig. 2 may include multiple BSCs 275.

Each BS270 may serve one or more sectors (or regions), each sector covered by a multi-directional antenna or an antenna pointing in a particular direction being radially distant from the BS 270. Alternatively, each partition may be covered by two or more antennas for diversity reception. Each BS270 may be configured to support multiple frequency allocations, with each frequency allocation having a particular frequency spectrum (e.g., 1.25MHz,5MHz, etc.).

The intersection of partitions with frequency allocations may be referred to as a CDMA channel. The BS270 may also be referred to as a Base Transceiver Subsystem (BTS) or other equivalent terminology. In such a case, the term "base station" may be used to generically refer to a single BSC275 and at least one BS 270. The base stations may also be referred to as "cells". Alternatively, each sector of a particular BS270 may be referred to as a plurality of cell sites.

As shown in fig. 2, a Broadcast Transmitter (BT)295 transmits a broadcast signal to the mobile terminal 100 operating within the system. A broadcast receiving module 111 as shown in fig. 1 is provided at the mobile terminal 100 to receive a broadcast signal transmitted by the BT 295. In fig. 2, several Global Positioning System (GPS) satellites 300 are shown. The satellite 300 assists in locating at least one of the plurality of mobile terminals 100.

In fig. 2, a plurality of satellites 300 are depicted, but it is understood that useful positioning information may be obtained with any number of satellites. The location information module 115 as shown in fig. 1 is generally configured to cooperate with the satellites 300 to obtain desired positioning information. Other techniques that can track the location of the mobile terminal may be used instead of or in addition to GPS tracking techniques. In addition, at least one satellite 300 may selectively or additionally process satellite DMB transmission.

As a typical operation of the wireless communication system, the BS270 receives reverse link signals from various mobile terminals 100. The mobile terminal 100 is generally engaged in conversations, messaging, and other types of communications. Each reverse link signal received by a particular BS270 is processed within the particular BS 270. The obtained data is forwarded to the associated BSC 275. The BSC275 provides call resource allocation and mobility management functions including coordination of soft handoff procedures between the BSs 270. The BSCs 275 also route the received data to the MSC280, which provides additional routing services for interfacing with the PSTN 290. Similarly, the PSTN290 interfaces with the MSC280, the MSC280 interfaces with the BSCs 275, and the BSCs 275 accordingly control the BS270 to transmit forward link signals to the mobile terminal 100.

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

Example one

An embodiment of the present invention provides a mobile terminal charging control circuit, as shown in fig. 3, where the mobile terminal includes an external interface and a charging controller, the external interface includes two charging terminals, and the charging controller includes an output terminal and two input terminals, and the mobile terminal charging control circuit includes: a terminal detection circuit and a switching circuit;

In some embodiments, the terminal detection circuit includes: a level detection module;

In some embodiments, the terminal detection circuit includes: a processor and an inverter circuit;

In some embodiments, the switching circuit comprises: the first switch tube and the second switch tube;

The first switch tube is a PMOS switch tube, and the second switch tube is an NMOS switch tube.

In some embodiments, the inverter circuit comprises: a third switching tube and a fourth switching tube;

The third switch tube is a PMOS switch tube, and the fourth switch tube is an NMOS switch tube.

Example two

As shown in fig. 4, the mobile terminal includes an external interface and a charging controller, where the external interface includes two charging terminals, and the charging controller includes an output terminal and two input terminals, and the charging control circuit according to an embodiment of the present invention includes: a terminal detection circuit and a switching circuit;

the output end of the terminal detection circuit is connected with the control end of the switching circuit;

the terminal detection circuit includes: a level detection module;

EXAMPLE III

As shown in fig. 5, the mobile terminal includes an external interface and a charging controller, where the external interface includes two charging terminals, and the charging controller includes an output terminal and two input terminals, and the charging control circuit according to an embodiment of the present invention includes: a terminal detection circuit and a switching circuit;

the terminal detection circuit includes: a processor and an inverter circuit;

Example four

An embodiment of the present invention provides a mobile terminal charging control circuit, as shown in fig. 6,

when an external data line plug is designed, a CC signal pin is designed inside, and the signal pin is connected to VBUS through a 56K pull-up resistor inside a charging head, fig. 7 shows a Type-C interface male head signal definition diagram, a female head of a Type-C interface is placed at a mobile phone end, in order to support forward and reverse insertion, two CC pins, namely CC1 and CC2, are designed inside the female head, fig. 8 shows a Type-C interface female head signal definition diagram, when an external male head is inserted into the female head, the CC pin of the male head is shorted with one of CC1 and CC2 in the female head, CC1 and CC2 in the female head are connected with a power management chip PMIC in a minimum system, PMIC of CC1 and CC2 are both designed with switchable pull-up resistors and pull-down resistors, if the external CC1 and CC2 are not inserted, the external charging head and OTG device are in polling detection, and under the assumption that the CC1 and the male head are shorted, because the external male head is pulled up by 56K, when the internal polling of the PMIC is pulled down, the external male head and the external male head are pulled up to form a loop to form voltage division, the formation of the loop can inform the VBUS detection switch in the PMIC to be turned on, so that the VBUS can form a loop with the internal of the mobile phone, and the charging operation is carried out

Four MOS tubes of P1, N1, P2 and N2 are added, and the center isGPIO-1 of CPU is turned on to output high level by default and outputs low level, namely G, through an inverter composed of P2 and N2_ETo better explain the scheme, it is assumed that the CC1 line inside the handset is disconnected due to some reason, that is, charging cannot be achieved when the male CC is inserted into the CC1 line of the female, the CC1 is disconnected to cause an obvious state that the VBUS switch in the PMIC cannot be turned on, software is used to monitor the VBUS detection switch, VBUS is output through the GPIO _2 of the PMIC to detect the open state, a low level is output when the PMIC is turned on, that is, GPIO _2 is "0", a high level is output when the PMIC is not turned on, that is, GPIO _2 "1", the high level of GPIO _2 is transmitted back to the cpu when the PMIC is not turned on, that is, GPIO _1 is notified to turn from the high level output to the low level, that is, GPIO _1 is "0", the cpu does not have any action when the cpu is turned on, and an inverter composed of P2 and N2 outputs a high level, i.e. G_EHigh potential G1_EN1 is conducted, P1 is cut off, the CC1 of the female connector is converted to the CC2 line, the VBUS switch can be normally identified and turned on due to the fact that the CC2 line is normal, the GPIO _2 outputs low potential, and similarly, when the CC2 line is short-circuited, the CC2 can be converted to the CC1 line through the scheme, charging is achieved, and positive and negative insertion is finally achieved.

EXAMPLE five

The embodiment of the invention provides a mobile terminal charging circuit, which comprises the mobile terminal charging circuit, an external interface and a charging controller in any one of the first embodiment to the fourth embodiment.

EXAMPLE six

The embodiment of the invention provides electronic equipment which is characterized by comprising a mobile terminal charging circuit, an external interface and a charging controller, wherein the mobile terminal charging circuit is described in the fifth embodiment;

In some embodiments, the external interface is a Type-c interface.

When the embodiment of the invention is specifically implemented, reference can be made to the above embodiments, and corresponding technical effects are achieved.

Fig. 9 is a schematic structural diagram of a mobile terminal according to another embodiment of the present invention. The mobile terminal 400 shown in fig. 9 includes: at least one processor 401, memory 402, at least one network interface 404, and other user interfaces 403. The various components in the mobile terminal 400 are coupled together by a bus system 405. It is understood that the bus system 405 is used to enable connection communication between these components. The bus system 405 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 405 in fig. 9.

The user interface 403 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.

It will be appreciated that memory 402 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), synchlronous SDRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 402 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 402 stores the following elements, executable units or data structures, or a subset thereof, or an expanded set thereof: an operating system 4021 and application programs 4022.

The operating system 4021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is configured to implement various basic services and process hardware-based tasks. The application programs 4022 include various application programs, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. A program for implementing the method according to the embodiment of the present invention may be included in the application 4022.

In this embodiment of the present invention, by calling a program or an instruction stored in the memory 402, specifically, a program or an instruction stored in the application 4022, the processor 401 is configured to execute the method steps provided by the method embodiments, for example, including:

acquiring an initial exposure value corresponding to each camera in a plurality of cameras of an image acquisition component;

according to the initial exposure value corresponding to each camera, automatically exposing and converging the cameras respectively;

and when the convergence of any one camera is finished, transmitting the identified face region to a processor to obtain a face image, wherein the face image is used for unlocking the face.

The method disclosed in the above embodiments of the present invention may be applied to the processor 401, or implemented by the processor 401. The processor 401 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 401. The Processor 401 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software elements in the decoding processor. The software elements may be located in ram, flash, rom, prom, or eprom, registers, among other storage media that are well known in the art. The storage medium is located in the memory 402, and the processor 401 reads the information in the memory 402 and completes the steps of the method in combination with the hardware.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques described herein may be implemented by means of units performing the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or make a contribution to the prior art, or may be implemented in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

It should be noted that, in this document, 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In this document, 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.

Through the above description of the embodiments, those skilled in the art will clearly understand that the methods described in the embodiments of the present invention can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention or the method according to some parts of the embodiments.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a mobile terminal control circuit that charges, mobile terminal includes external interface and charge controller, external interface includes two charging terminals, charge controller includes output and two inputs, its characterized in that includes: a terminal detection circuit and a switching circuit;

wherein the terminal detection circuit includes: a processor and an inverter circuit;

the output end of the phase-inverting circuit is connected with the control end of the switching circuit;

wherein the inverter circuit includes: a third switching tube and a fourth switching tube;

the grid electrode of the third switching tube is used as the input end of the inverter circuit;

2. The mobile terminal charging control circuit of claim 1, wherein the terminal detection circuit comprises: a level detection module;

the input end of the level detection module is connected with the output end of the charging controller, the output end of the level detection module is connected with the control end of the switching circuit, and the level detection module detects a level signal and outputs the level signal to the switching circuit.

3. The mobile terminal charge control circuit of claim 1, wherein the switching circuit comprises: the first switch tube and the second switch tube;

the source electrode of the second switch tube is respectively connected with a second charging terminal of the external interface and a second input end of the charging controller, and the drain electrode of the second switch tube is connected with the drain electrode of the first switch tube;

4. The mobile terminal charging control circuit of claim 3, wherein the first switch transistor is a PMOS switch transistor, and the second switch transistor is an NMOS switch transistor.

5. The charging control circuit of claim 1, wherein the third switch tube is a PMOS switch tube, and the fourth switch tube is an NMOS switch tube.

6. A mobile terminal charging circuit, characterized by comprising the mobile terminal charging control circuit of any one of claims 1 to 5.

7. An electronic device, comprising the mobile terminal charging circuit of claim 6, an external interface and a charging controller;

8. The electronic device of claim 7, wherein the external interface is a Type-c interface.