CN110531840A - A kind of mainboard and terminal device - Google Patents

A kind of mainboard and terminal device Download PDF

Info

Publication number
CN110531840A
CN110531840A CN201910782443.3A CN201910782443A CN110531840A CN 110531840 A CN110531840 A CN 110531840A CN 201910782443 A CN201910782443 A CN 201910782443A CN 110531840 A CN110531840 A CN 110531840A
Authority
CN
China
Prior art keywords
temperature
usb interface
mainboard
pin
charger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910782443.3A
Other languages
Chinese (zh)
Inventor
田华仁
杨小马
林坚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huaqin Telecom Technology Co Ltd
Original Assignee
Huaqin Telecom Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huaqin Telecom Technology Co Ltd filed Critical Huaqin Telecom Technology Co Ltd
Priority to CN201910782443.3A priority Critical patent/CN110531840A/en
Publication of CN110531840A publication Critical patent/CN110531840A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 – G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 – G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/28Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/30Monitoring
    • G06F11/3058Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations

Abstract

The invention discloses a kind of mainboard and terminal devices, are related to electronic technology field, include the first PIN in the USB interface including general-purpose serial bus USB interface;The USB interface is the main board power supply for connecting with charger;Temperature sensing circuit detects the first temperature of the USB interface by the first PIN for connecting with the first PIN in the USB interface;Processor, the first temperature detected for obtaining the temperature sensing circuit;When first temperature is greater than or equal to the first temperature threshold, then interrupt signal is sent to the charger by the USB interface, the interrupt signal is used to indicate the charger and stops charging.

Description

A kind of mainboard and terminal device
Technical field
The present invention relates to electronic technology field more particularly to a kind of mainboards and terminal device.
Background technique
It is more and more long using the time as the application scenarios of terminal device are more and more, the power consumption to terminal device itself As soon as ability is a greatly test, at this moment chargeable demand ever more important, common charging modes are on the market now Universal serial bus (Universal Serial Bus, USB) charger connects terminal device by the data line of USB interface With charger, is provided for terminal device and fill power supply.There are four types of type, USB Type-C (USB interface C classes therein for USB interface Type) due to the characteristics of supporting front and back sides blindmate, become the hot topic and main trend of USB interface on the market.
In USB interface by taking USB Type-C interface as an example, internal standard is designed using metal terminal and terminal Between form of grooves, the gap between interior metal terminal and terminal is very small, causes user to exist when in use certain Security risk.Such as when there be hiding unclarified liquid or foreign matter in inside, such as metal particle easily cause the terminal of charging with Different terminals has short circuit phenomenon, and then temperature rises, and causes burning machine.
The processing method of the prior art is to add a negative temperature coefficient NTC resistance, NTC resistance by usb interface connector It varies with temperature and changes, can also cause corresponding analog-digital converter (Analog-to-Digital Converter, ADC) mouth Partial pressure variation, according to this triangular variation relation set temperature threshold value, after triggering this temperature threshold, terminal device stops Charging.If at this moment USB interface due to foreign matter or dislocation cause micro-short circuit, although terminal device stopping charge, USB It can be still formed into a loop between interface and charger, cause to generate heat, USB is caused to burn mouth failure.
Therefore, in the prior art since the foreign matter of USB interface or dislocation cause micro-short circuit that the failure of fever is caused to be one A urgent problem to be solved.
Summary of the invention
The embodiment of the present application provides a kind of mainboard and terminal device, solves the foreign matter in the prior art due to USB interface Or dislocation causes micro-short circuit to lead to the failure problems generated heat.
A kind of mainboard and terminal device provided by the embodiments of the present application, specifically include:
General-purpose serial bus USB interface includes the first PIN in the USB interface;The USB interface is used for and charger Connection is the main board power supply;
Temperature sensing circuit is detected for connecting with the first PIN in the USB interface by the first PIN First temperature of the USB interface;
Processor, the first temperature detected for obtaining the temperature sensing circuit;Be greater than when first temperature or When equal to the first temperature threshold, then interrupt signal is sent to the charger by the USB interface, the interrupt signal is used for Indicate that the charger stops charging.
Make the first temperature of the temperature sensing circuit timely learning USB interface on mainboard by the first newly-increased PIN, then Judge whether the first temperature of the USB interface obtained is greater than or equal to the first temperature threshold by processor, if so, processor leads to again The PIN transmitting interrupt signal crossed on USB interface stops charging to charger, to avoid the foreign matter or dislocation because of USB interface Micro-short circuit is caused to lead to the failure of fever.
A kind of possible implementation, the processor are also used to:
The processor, for indicating the temperature detection when first temperature is less than first temperature threshold Circuit continues to test first temperature of the USB interface.
A kind of possible implementation, the first PIN, for the PIN increased newly in the USB interface.
By increasing the first PIN newly on USB interface, changed with the temperature anomaly of timely learning USB interface, and will be warm Variable signal is spent by the temperature sensing circuit on mainboard, is known processor and is judged to handle.
And when needing to stop charging, interrupt signal can also be sent by processor, charging is passed to by the first PIN Device, instruction charger stop charging.
A kind of possible implementation, further includes:
The resistance value of negative temperature coefficient NTC resistance, the NTC resistance varies with temperature and changes.
A kind of possible implementation, the processor are also used to:
The resistance value of the NTC resistance is obtained, and determines the second temperature of the mainboard according to the resistance value of the NTC resistance Degree;When the second temperature is greater than or equal to second temperature threshold value, is sent and interrupted to the charger by the USB interface Signal, the interrupt signal are used to indicate the charger and stop charging.
A kind of possible implementation, the processor are also used to:
When the second temperature is less than the second temperature threshold value, it is described to indicate that the temperature sensing circuit continues to test The second temperature of mainboard.
A kind of possible implementation, the first PIN, positioned in the USB interface among two different terminals.
A kind of possible implementation, the USB interface are USB Type-C interface.
A kind of possible implementation, the first PIN, for being connect with the idle pin in the charger.
A kind of terminal device, a kind of possible implementation, including for executing any of the above mainboard.
Using a kind of mainboard provided by the invention and terminal device, have the advantages that through showing in USB interface On the basis of having terminal structure, a PIN is increased newly so that the temperature anomaly of mainboard timely learning USB interface changes, then passes through PIN It transmits interrupt signal and stops charging to charger, so that micro-short circuit causes to send out caused by avoiding because of the foreign matter of USB interface or dislocation The failure of heat.
Detailed description of the invention
Fig. 1 is USB interface schematic diagram of internal structure in the prior art;
Fig. 2 is to have foreign matter material object exemplary diagram inside USB interface in the prior art;
Fig. 3 is to have foreign matter structural schematic diagram inside USB interface in the prior art;
Fig. 4 is internal terminal misconstruction schematic diagram when USB interface is docked with various forms of plugs in the prior art;
Fig. 5 is the structural schematic diagram that USB interface connects system in the prior art and micro-short circuit occurs for charger;
Fig. 6 is a kind of mainboard structure schematic diagram provided by the present application;
Fig. 7 is the USB interface optimization front and back contrast schematic diagram in a kind of mainboard provided by the present application;
Fig. 8 is the temperature sensing circuit schematic diagram in a kind of mainboard provided by the present application;
Fig. 9 is a kind of charging flow figure provided by the present application.
Specific embodiment
In order to better understand the above technical scheme, below in conjunction with Figure of description and specific embodiment to above-mentioned Technical solution is described in detail, it should be understood that the specific features in the embodiment of the present application and embodiment are to the application skill The detailed description of art scheme, rather than the restriction to technical scheme, in the absence of conflict, the embodiment of the present application And the technical characteristic in embodiment can be combined with each other.
There are four types of types for existing USB interface, are respectively: USB Type-A, USB Type-B, Mini-USB and USB Type-C, for connecting different types of terminal device.The characteristics of wherein USB Type-C type is due to support front and back sides blindmate, Therefore become the hot topic and main trend of USB interface on the market.USB Type-C, abbreviation Type-C, text in the following contents with For Type-C interface, other situations are repeated no more.
Fig. 1 is USB interface schematic diagram of internal structure in the prior art, is used as shown, the standard of interface internal designs Be form of grooves between metal terminal and terminal, and with plastic material shop fixtures, between interior metal terminal and terminal between Gap is very small, and Type-C is the shape of open type, this is resulted in as unused Type-C, when placing it in somewhere, The gap of internal terminal, which is easily stained with, invites the unknown objects such as dust, foreign matter.Fig. 2 is real to there is foreign matter inside USB interface in the prior art Object exemplary diagram, as shown, being covered with many tiny foreign matters on part terminal inside Type-C and between terminal, these are different Very likely contain metal particle in object, when containing metal particle, using Type-C connection terminal device and charger into Row charging, just easily causes the short circuit phenomenon between terminal.
Fig. 3 is to have foreign matter structural schematic diagram inside USB interface in the prior art, as shown, terminal 1 and terminal 2 are Independent terminal, connectionless relationship, but because containing metal particle in the gap of terminal 1 and terminal 2, cause to connect using Type-C Short circuit phenomenon occurs when being charged for terminal device and charger, and then temperature rises, and Type-C is caused to burn machine failure.
During using Type-C, other than having foreign matter such case, there are also a kind of situations, can also there is Type-C The security hidden trouble of burning machine.Fig. 4 is internal terminal dislocation knot when USB interface is docked with various forms of plugs in the prior art Structure schematic diagram, as shown, different user is docked using various forms of plugs with Type-C, since various forms of plugs are It is manufactured by different suppliers, this can bring about using upper matching problem, if plug has dislocation, the metal terminal of plug It is contacted with the metal terminal inside Type-C, will also result in short circuit during the charging process, at this moment easily cause the affiliated terminal of plug The functional operation unfavorable condition of equipment occurs.
In the prior art when handling above problem generation, the measure taken is on the mainboard of terminal device plus one negative Temperature coefficient (Negative Temperature Coefficient, NTC) resistance, NTC resistance vary with temperature and change, this Sample causes corresponding ADC partial pressure one can also change, and passes through the mapping relations of NTC resistance and temperature, NTC resistance and ADC partial pressure Mapping relations, available temperature and ADC partial pressure corresponding relationship, according to this characteristic according to ADC partial pressure can set one First temperature threshold.
When during the charging process, after the temperature raising of terminal device is triggered to this first temperature threshold, terminal device System end stops charging, that is, mainboard is allowed to stop charging to battery, still, when terminal device is connected by Type-C and charger When connecing, and thering is foreign matter or dislocation to cause micro-short circuit inside Type-C, as shown, Fig. 5 is the company of USB interface in the prior art The structural schematic diagram of micro-short circuit occurs for welding system and charger, although the system end stopping of terminal device is charged, due to There are foreign matter or dislocation to cause to be formed into a loop with charger end inside Type-C, as long as electric current does not trigger charger end overcurrent guarantor It protects (over current protection, OCP), this circuit just always exists, this can cause on the constant temperature of Type-C It rises, results even in the generation of Type-C scaling loss.
To solve the above problems, the application on the basis of the existing terminal structure of USB interface, increases and is provided with one first PIN is changed with the temperature anomaly of timely learning Type-C.Fig. 6 is a kind of mainboard structure schematic diagram provided by the present application, as schemed institute Show, main board system structure includes: USB interface 501, temperature sensing circuit 502, processor 503, NTC resistance 504 and first PIN601。
Wherein, USB interface 501, including the first PIN601, connect with external charger, for being main board power supply;
First PIN601 is connect with temperature sensing circuit 502, external charger idle pin, for working as USB interface 501 Temperature when changing, the temperature signal of the first newly-increased PIN601 also can be with changing.Fig. 7 is provided by the present application USB Type-C optimization front and back contrast schematic diagram in a kind of mainboard, as shown, new between two different terminals of Type-C Increase the first PIN601.
The interrupt signal of the transmission of transmitting processor 503 is also used to charger, indicates that charger stops charging.
Temperature sensing circuit 502 is connect with the first PIN601, processor 503 and NTC resistance 504, for passing through sensing Device detects the temperature signal of the first PIN601, to detect the first temperature of USB interface 501;Fig. 8 is provided by the present application one Temperature sensing circuit schematic diagram in kind mainboard;
It is also used to the first temperature passing to processor 503;
It is also used to receive the instruction of processor 503, detects the second temperature of mainboard.
Processor 503 is connect with temperature sensing circuit 502 and NTC resistance 504, for obtaining temperature sensing circuit 502 The first temperature detected, with the first temperature for first passing through the mapping relations setting between NTC resistance 504 and temperature, ADC partial pressure in advance Degree threshold value compares, and when the first temperature is greater than or equal to the first temperature threshold, sends interrupt signal to temperature sensing circuit 502, then the first PIN601 on USB interface 501 is passed to, interrupt signal is transmitted to again by charger by the first PIN601, instruction is filled Electric appliance stops charging.
It is also used to when the first temperature is less than the first temperature threshold, instruction temperature sensing circuit 502 continues through first First temperature of PIN601 detection USB interface 501.
It is also used to obtain the resistance value of NTC resistance 504, and determines the second temperature of mainboard according to the resistance value of NTC resistance 504 Degree;It is compared with the second temperature threshold value for first passing through the mapping relations setting between NTC resistance 504 and temperature, ADC partial pressure in advance, When second temperature is greater than or equal to second temperature threshold value, interrupt signal is sent to temperature sensing circuit 502, then pass to USB Interrupt signal is transmitted to charger again by the first PIN601 by the first PIN601 on interface 501, and instruction charger stops charging.
It is also used to when second temperature is less than second temperature threshold value, instruction temperature sensing circuit 502 continues to test mainboard Second temperature.
NTC resistance 504 is connect with temperature sensing circuit 502 and processor 503, for being obtained by NTC resistance 504 The second temperature of mainboard.
Terminal device during the charging process, knows the abnormal temperature of USB interface by the first newly-increased PIN, and passes through the One PIN transmits the detailed process of interrupt signal, is described more fully below.Fig. 9 is a kind of charging flow figure provided by the present application.
Step 901: mainboard is connect with external charger by USB interface and is charged;
Step 902: temperature sensing circuit detects the first temperature of USB interface by the first PIN;
Specifically, the temperature signal of the first newly-increased PIN also can be with generation when the temperature of USB interface changes Variation, temperature sensing circuit passes through the temperature signal of the first PIN of sensor detecting, to detect the first temperature of USB interface.
Step 903: processor obtains the first temperature of USB interface, judges whether the first temperature triggers the first temperature threshold;
Specifically, the temperature signal for the first PIN that processor is detected by temperature sensing circuit, knows USB interface First temperature does ratio with the first temperature threshold for first passing through the mapping relations setting between NTC resistance and temperature, ADC partial pressure in advance Compared with judging whether the first temperature triggers the first temperature threshold.
Step 904: when the first temperature is greater than or equal to the first temperature threshold, processor sends interrupt signal;
Specifically, obtaining the relation formula of NTC resistance and temperature previously according to thermistor specifications, then adopted by ADC Collection partial pressure obtains NTC resistance and the relation formula of ADC, goes out the relation formula between temperature and ADC partial pressure from two derivations of equation, So as to setting the first temperature threshold, for example the first temperature threshold can be 60 degree, when the first temperature is more than or equal to first When temperature threshold, processor sends interrupt signal to temperature sensing circuit, then passes to the first PIN on USB interface.
Step 905: when the first temperature is less than the first temperature threshold, temperature sensing circuit continues to test the of USB interface One temperature;
Step 906: interrupt signal is transmitted to charger by the first PIN;
Specifically, interrupt signal is transmitted to charger interface after obtaining the interrupt signal that processor is sent by the first PIN Idle pin.
Step 907: charger stops charging.
Specifically, charger after receiving interrupt signal, stops charging.
Wherein, the USB interface pin in above-mentioned steps 901-907 and specific with the corresponding relationship of charger end interface pin Description is seen below.
USB interface pin, as shown in Table 1.
Table one
Wherein, there is the meaning of pin in table:
A1:GND, ground line;A2: idle;A3: idle;A4:VBUS ,+5V connect power supply line;A5:CC1, for the company of detection Connect, configure VBUS etc.;A6:Dp1, the standard being compatible with before USB interface;A7:Dn1, the standard being compatible with before USB interface;A8: SBU1, auxiliary signal use under specific transmission mode;A9:VBUS ,+5V connect power supply line;A10: idle;A11: idle; A12:GND, ground line.
B1:GND, ground line;B2: idle;B3: idle;B4:VBUS ,+5V connect power supply line;B5:CC2, for the company of detection Connect, configure VBUS etc.;B6:Dp2, the standard being compatible with before USB interface;B7:Dn2, the standard being compatible with before USB interface;B8: SBU2, auxiliary signal use under specific transmission mode;B9:VBUS ,+5V connect power supply line;B10: idle;B11: idle; B12:GND, ground line.
If USB interface is USB Type-C type, specific pin is as shown in Table 2.
Table two
Wherein, except in addition to identical pin in above-mentioned table one, different places is, A5:CC, for detecting connection, matching Set VBUS etc., A6:D+, data line anode;A7:D-, data line cathode;A8:RFU1, auxiliary signal.B5:VCONN, for supplying Electricity;B6:D+, data line anode;B7:D-, data line cathode;B8:RFU2, auxiliary signal.
The first PIN increased newly on USB interface is located among two different terminals of USB interface, and specific terminal is not It limits.
Because the interface of charger is all USB interface, so the interface pin at charger end is referring to content in above-mentioned table, wherein Having 8 pins is idle state, A2, A3, A10, A11, B2, B3, B10, B11, therefore, when the first PIN on USB interface is received After the interrupt signal sent to processor, it can be connect with any pin in this 8 idle states, so that interrupt signal be passed Charger is passed, to guarantee that charger can stop charging.
Above-mentioned steps 901-907 be terminal device during the charging process USB interface because there is the reason of foreign matters such as metal particle Lead to micro- circuit, to detect the first temperature of USB interface by the way of increasing the first PIN newly on USB interface, and transmits Interrupt signal makes charger stop charging to charger.
In addition, terminal device also can cause mainboard temperature itself to be gradually increasing during the charging process, at this moment processor can be with The resistance value for obtaining NTC resistance, the second temperature of mainboard is determined according to the resistance value of NTC resistance;And with preparatory NTC resistance and temperature The second temperature threshold value of mapping relations setting between degree, ADC partial pressure compares, for example second temperature threshold value can be 65 degree, When second temperature is greater than or equal to second temperature threshold value, processor sends interrupt signal to temperature sensing circuit, then passes to Interrupt signal is transmitted to charger again by the first PIN on USB interface, the first PIN, and charger stops charging.
Finally, it should be noted that it should be understood by those skilled in the art that, embodiments herein can provide as method, be System or computer program product.Therefore, the application can be used complete hardware embodiment, complete software embodiment or combine software With the form of the embodiment of hardware aspect.Moreover, it wherein includes that computer can use journey that the application, which can be used in one or more, The computer implemented in the computer-usable storage medium (including but not limited to magnetic disk storage, optical memory etc.) of sequence code The form of program product.
The application be referring to according to the present processes, equipment (system) and computer program product flow chart and/or Block diagram describes.It should be understood that each process that can be realized by computer program instructions in flowchart and/or the block diagram and/or The combination of process and/or box in box and flowchart and/or the block diagram.It can provide these computer program instructions to arrive General purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices processor to generate one Machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for realizing flowing The device for the function of being specified in journey figure one process or multiple processes and/or block diagrams one box or multiple boxes.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.
Obviously, those skilled in the art can carry out various modification and variations without departing from the model of the application to the application It encloses.In this way, if these modifications and variations of the application belong within the scope of the claim of this application and its equivalent technologies, then The application is also intended to include these modifications and variations.

Claims (10)

1. a kind of mainboard characterized by comprising
General-purpose serial bus USB interface includes the first PIN in the USB interface;The USB interface is used to connect with charger, For the main board power supply;
Temperature sensing circuit, for being connect with the first PIN in the USB interface, by described in the first PIN detection First temperature of USB interface;
Processor, the first temperature detected for obtaining the temperature sensing circuit;When first temperature is greater than or equal to When the first temperature threshold, then interrupt signal is sent to the charger by the USB interface, the interrupt signal is used to indicate The charger stops charging.
2. mainboard as described in claim 1, which is characterized in that the processor is also used to:
When first temperature is less than first temperature threshold, indicate that the temperature sensing circuit continues to test the USB First temperature of interface.
3. mainboard as described in claim 1, which is characterized in that
First PIN, for the PIN increased newly in the USB interface.
4. mainboard as described in claim 1, which is characterized in that further include:
The resistance value of negative temperature coefficient NTC resistance, the NTC resistance varies with temperature and changes.
5. mainboard as claimed in claim 4, which is characterized in that the processor is also used to:
The resistance value of the NTC resistance is obtained, and determines the second temperature of the mainboard according to the resistance value of the NTC resistance; When the second temperature is greater than or equal to second temperature threshold value, is sent by the USB interface to the charger and interrupt letter Number, the interrupt signal is used to indicate the charger and stops charging.
6. mainboard as claimed in claim 5, which is characterized in that the processor is also used to:
When the second temperature is less than the second temperature threshold value, indicate that the temperature sensing circuit continues to test the mainboard The second temperature.
7. mainboard as described in claim 1, which is characterized in that
First PIN, positioned in the USB interface among two different terminals.
8. mainboard as described in claim 1, which is characterized in that
The USB interface is USB Type-C interface.
9. mainboard as described in claim 1, which is characterized in that
First PIN, for being connect with the idle pin in the charger.
10. a kind of terminal device, which is characterized in that including mainboard as described in any one of claim 1 to 9.
CN201910782443.3A 2019-08-23 2019-08-23 A kind of mainboard and terminal device Pending CN110531840A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910782443.3A CN110531840A (en) 2019-08-23 2019-08-23 A kind of mainboard and terminal device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910782443.3A CN110531840A (en) 2019-08-23 2019-08-23 A kind of mainboard and terminal device

Publications (1)

Publication Number Publication Date
CN110531840A true CN110531840A (en) 2019-12-03

Family

ID=68662696

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910782443.3A Pending CN110531840A (en) 2019-08-23 2019-08-23 A kind of mainboard and terminal device

Country Status (1)

Country Link
CN (1) CN110531840A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101399449A (en) * 2007-09-29 2009-04-01 联想(北京)有限公司 Power supply device applied to portable devices
CN108054795A (en) * 2017-12-15 2018-05-18 华勤通讯技术有限公司 Terminal and charging method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101399449A (en) * 2007-09-29 2009-04-01 联想(北京)有限公司 Power supply device applied to portable devices
CN108054795A (en) * 2017-12-15 2018-05-18 华勤通讯技术有限公司 Terminal and charging method

Similar Documents

Publication Publication Date Title
JP5388484B2 (en) Apparatus and method for detecting power supply
TWI398759B (en) Power supply device, portable electronic apparatus and related method for determining types of a power supply device
US20100045258A1 (en) Dedicated power supply apparatus, terminal, power supply system, and power supply method
CN103633709A (en) Charge recognition system and method
WO2016148643A1 (en) Usb cable
CN102708077B (en) State recognition method and state recognition apparatus
CN206627597U (en) One kind detection USB socket water inlet open circuit potential
US10720778B2 (en) Method for identifying type of cable, power adapter and cable
CN109245244A (en) Charging circuit, charging method, electronic equipment and storage medium
CN105071484B (en) A kind of charging method and device of the terminal with data exchanging function
TWI700498B (en) High contact resistance detection
CN102984368B (en) A kind of mobile terminal for automatically identifying genuine battery and recognition methods thereof
TWI669842B (en) Method for improving temperature management of battery pack
CN109412234A (en) Charging circuit, charging method, electronic equipment and storage medium
CN106340932A (en) Mobile terminal connection detection method and system based on USB interface charger
CN106329654A (en) Electronic device and charging method thereof
CN110531840A (en) A kind of mainboard and terminal device
US9599519B2 (en) Charging a battery based on stored battery characteristics
CN106300549A (en) Electronic installation and charging method thereof
CN106451617A (en) Electronic device and charging method thereof
CN109378877A (en) Charging circuit, charging method, electronic equipment and storage medium
CN109066827A (en) Electronic equipment and its control method and storage medium
CN110112810A (en) A kind of mobile phone shell and charging method
CN106953381A (en) Temperature protection circuit, method and the terminal device of charging inlet
CN106655339A (en) Mobile terminal charging management method and apparatus, and mobile terminal

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai

Applicant after: Huaqin Technology Co., Ltd

Address before: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai

Applicant before: HUAQIN TELECOM TECHNOLOGY Co.,Ltd.

Address after: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai

Applicant after: Huaqin Technology Co.,Ltd.

Address before: 201210 Building 1, 399 Keyuan Road, Zhangjiang High Tech Park, Pudong New Area, Shanghai

Applicant before: Huaqin Technology Co., Ltd