CN106526403B - A kind of terminal leakage current detection circuit, terminal and terminal leakage current test system - Google Patents

A kind of terminal leakage current detection circuit, terminal and terminal leakage current test system Download PDF

Info

Publication number
CN106526403B
CN106526403B CN201611117721.6A CN201611117721A CN106526403B CN 106526403 B CN106526403 B CN 106526403B CN 201611117721 A CN201611117721 A CN 201611117721A CN 106526403 B CN106526403 B CN 106526403B
Authority
CN
China
Prior art keywords
terminal
power supply
leakage current
control unit
switch
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.)
Active
Application number
CN201611117721.6A
Other languages
Chinese (zh)
Other versions
CN106526403A (en
Inventor
涂瑞
高思
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.)
Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Original Assignee
Yulong Computer Telecommunication Scientific Shenzhen 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 Yulong Computer Telecommunication Scientific Shenzhen Co Ltd filed Critical Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Priority to CN201611117721.6A priority Critical patent/CN106526403B/en
Publication of CN106526403A publication Critical patent/CN106526403A/en
Application granted granted Critical
Publication of CN106526403B publication Critical patent/CN106526403B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections

Abstract

The embodiment of the invention discloses a kind of terminal leakage current detection circuits, comprising: incoming end, for accessing the external power supply and identification module, wherein the external power supply and identification module are for supplying incoming end external power supply and for output leakage current value;End cell, for supplying terminal system electric power;First switch, input terminal are electrically connected with the incoming end;Second switch, input terminal are electrically connected with the end cell;Power output end is electrically connected with the output end of the output end of first switch and second switch respectively;Control unit controls the conducting and disconnection of first switch and the second switch respectively;Wherein, when control unit receives leakage current test instruction, control unit controls first switch conducting, and controls second switch and disconnect, so that external power supply and identification module obtain leakage current value.The embodiment of the invention also discloses a kind of terminal and terminal leakage current test systems.Using the present invention, have the advantages that facilitate terminal leakage current test.

Description

A kind of terminal leakage current detection circuit, terminal and terminal leakage current test system
Technical field
The present invention relates to leakage current test technical field more particularly to a kind of terminal leakage current detection circuits, terminal and end Hold leakage current test system.
Background technique
Existing terminal, such as mobile phone, tablet computer etc. can have some potential electric leakages in exploitation design process Risk, it is fast that terminal electric leakage will lead to terminal power consumption, and user needs often charging, influences the experience of user, and terminal is leaked electricity meeting When mobile phone being caused to be placed for a long time, battery in terminal may Cross prevention, user needs to reactivate battery, to user's Using bringing inconvenience, and terminal electric leakage will lead to some components failure etc..
The leakage current test of terminal be terminal factory before a routine test, the prior art propose by false battery into Row detection of electrical leakage, the specific scheme is that the battery of terminal is taken out, replace battery is the regulated power supply of protection board and outside, surely Voltage source can power to mobile phone, be approximately the leakage current of mobile phone in the electric current of the when marquis not being switched on, regulated power supply output, thus It can detecte out whether terminal meets the requirements.However, carrying out the leakage current test of terminal by false battery, inspection can only be sampled It surveys, cannot all carry out leakage tests to mobile phone secondary by the gross.There may be the risk of test leakage, while under efficiency is also relatively low.
Summary of the invention
The technical problem to be solved by the embodiment of the invention is that provide a kind of terminal leakage current detection circuit, terminal and System.Terminal leakage current test can be facilitated.
In order to solve the above-mentioned technical problem, first aspect of the embodiment of the present invention provides a kind of terminal leakage current test electricity Road, comprising:
Incoming end, for accessing the external power supply and identification module, wherein the external power supply and identification module are used for It supplies incoming end external power supply and is used for output leakage current value;
End cell, for supplying terminal system electric power;
First switch, input terminal are electrically connected with the incoming end;
Second switch, input terminal are electrically connected with the end cell;
Power output end is electrically connected with the output end of the output end of first switch and second switch respectively;
Control unit controls the conducting and disconnection of first switch and the second switch respectively;Wherein, when control unit receives When leakage current test instructs, control unit controls first switch conducting, and controls second switch and disconnect, so that external power supply and knowledge Other module obtains leakage current value.
Second aspect of the embodiment of the present invention provides a kind of terminal, including above-mentioned terminal leakage current detection circuit.
The third aspect of the embodiment of the present invention provides a kind of terminal leakage current test system, including external power supply and identification mould Block and above-mentioned terminal, the external power supply and identification module are for supplying incoming end external power supply and for output leakage current Value.
The implementation of the embodiments of the present invention has the following beneficial effects: since incoming end is for accessing the external power supply and knowledge Other module, first switch, second switch, power output end, control unit and end cell are all located in terminal, thus, work Personnel only need for external power supply and identification module to be electrically connected with incoming end, when control unit receives leakage current test instruction, Staff can very easily obtain the leakage current value of terminal, easy to operate, the convenient leakage current test to batch terminal, no There can be the risk of test leakage, while detection efficiency is also higher.Moreover, such detection circuit can be used in non-disconnectable end cell On, widen the application range of the detection circuit.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.
Fig. 1 is first embodiment of the invention terminal leakage current detection circuit;
Fig. 2 is the circuit diagram of first embodiment of the invention external power supply and identification module;
Fig. 3 is second embodiment of the invention terminal leakage current detection circuit;
Fig. 4 is the electrical connection graph of the power supply selection circuit of second embodiment of the invention;
Shown by reference numeral:
110- incoming end;120- first switch;The first PMOS tube of 121-;The second PMOS tube of 122-;130- second switch; The first NMOS tube of 131-;The second NMOS tube of 132-;140- power output end;150,250- control unit;160- end cell; 170- regulated power supply;180- computer;270- power supply selection circuit.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
First embodiment
Referring to Fig.1 and 2, being one embodiment of the invention terminal leakage current detection circuit, in the present embodiment, the end Leakage current detection circuit is held to be used to be electrically connected with external power supply and identification module, the external power supply and identification module include pressure stabilizing Power supply 170 and computer 180, the output end of the regulated power supply 170 are electrically connected to supply electricity to examine with the input terminal of detection circuit Slowdown monitoring circuit, the computer 180 are used for output leakage current value, and the regulated power supply 170 is communicated with computer 180 with pressure stabilizing is electric The output voltage and output electric current in source 170 are sent to computer 180, in other embodiments of the invention, the regulated power supply It can also be combined with computer.The terminal leakage current detection circuit includes incoming end 110, end cell 160, first Switch 120, second switch 130, power output end 140 and control unit 150.
Specifically, in the present embodiment, the incoming end 110 is electrically connected with external power supply and identification module, specifically with Regulated power supply 170 is electrically connected, and in the present embodiment, the incoming end 110 is the Vbus pin of the USB of terminal, thus, pressure stabilizing electricity Source 170 can be electrically connected by data line with terminal leakage current detection circuit.The end cell 160 is located in terminal, is used for The electric power of terminal system is supplied, the end cell 160 is removable battery, is also possible to non-disconnectable battery.
The input terminal of the first switch 120 is electrically connected with the incoming end 110, the output end of the first switch 120 It is electrically connected with power output end 140, so that the electric power of regulated power supply 170 passes through incoming end 110, the first switch 120 of conducting, electricity Source output terminal 140 supplies terminal system, is referred to as this road power supply circuit detects power supply circuit herein.The second switch 130 input terminal is electrically connected with the end cell 160, the output end of the second switch 130 and the power output end 140 Electrical connection, thus, the terminal system that the electric power of end cell 160 is exported by second switch 130, the power output end 140 of conducting System, by this road, power supply circuit is referred to as normal power supply circuit herein.
Described control unit 150 controls the conducting and disconnection of first switch 120 and second switch 130 respectively, thus, control The control of unit 150 is that detection power supply circuit or normal power supply circuit are powered to terminal system.Specifically, 150 meeting of control unit Leakage current test instruction is received, which can be the operational order of staff's input, such as other pins for passing through USB The instruction can be inputted, the instruction can also be inputted with key in triggering terminal to realize, be also possible to acoustic control to input the instruction, Etc. forms, when control unit 150 receive the leakage current test instruction when, control unit 150 control first switch 120 be connected, And control second switch 130 disconnects, at this point, detection power supply circuit works normally, normal power supply circuit is disconnected, at this time when terminal Off-mode, at this point, the output electric current of regulated power supply 170 is exactly terminal leakage current, thus, since the meeting of regulated power supply 170 will be defeated Electric current, output voltage are transferred to computer 180 out, thus, computer 180 can obtain the electric leakage stream information and export, such as Display on a display screen, or is handled the electric leakage stream information of output, for example, in computer 180 can with preset threshold, when When greater than the threshold value, computer 180 marks the red electric leakage stream information, indicates that the counterpart terminal of detection is undesirable, so as to Undesirable terminal is found out from computer screen curtain.
In the present embodiment, since incoming end 110 is for accessing the external power supply and identification module, first switch 120, Second switch 130, power output end 140, control unit 150 and end cell 160 are all located in terminal, thus, staff It only needs for external power supply and identification module to be electrically connected with incoming end 110, when control unit 150 receives leakage current test instruction When, staff can very easily obtain the leakage current value of terminal, and easy to operate, the convenient leakage current to batch terminal is examined It surveys, there is no the risks of test leakage, while detection efficiency is also higher.Moreover, such detection circuit can be used in non-disconnectable terminal On battery 160, the application range of the detection circuit has been widened.
In the present embodiment, the first switch 120 can have following several forms:
1, first switch 120 includes PMOS tube (the positive channel Metal Oxide of two reversal connections Semiconductor), specifically, the pole D (drain electrode) of first PMOS tube 121 is electrically connected with incoming end 110, described first The pole S (source electrode) of PMOS tube 121 is electrically connected with the second PMOS tube 122, the pole G (grid) of first PMOS tube 121 with it is described Control unit 150 is electrically connected;The pole S of second PMOS tube 122 is electrically connected with the pole S of first PMOS tube 121, and described The pole D of two PMOS tube is electrically connected with power output end 140,150 electricity of the pole G and described control unit of second PMOS tube 122 Connection, the mode of such two PMOS tube reversal connection, can preferably control the conducting and disconnection of first switch 120, and detect and supply When circuit disconnects, when normal power supply circuit works, leakage current will not be generated at first switch 120, thus such scheme Realisation preferable in industry, cost is relatively low.In addition, in other embodiments of the invention, the pole S of first PMOS tube with Incoming end electrical connection, the pole D of first PMOS tube is electrically connected with the second PMOS tube, the pole G of first PMOS tube with it is described Control unit electrical connection;The pole D of second PMOS tube is electrically connected with the pole D of first PMOS tube, second PMOS tube The pole S be electrically connected with power output end, the pole G of second PMOS tube is electrically connected with the control unit, and such mode is also The mode of two PMOS tube reversal connection.
2, first switch 120 includes NMOS tube (the Negative channel Metal Oxide of two reversal connections Semiconductor), specifically with incoming end 110, power output end 140, control unit 150 connection type see the 1st point, Details are not described herein again.
3, first switch 120 includes a PMOS tube or a NMOS tube, and control detection power supply circuit equally may be implemented Be turned on or off, by first switch 120 include a PMOS tube for be illustrated, the pole D of the PMOS tube and incoming end 110 electrical connections, the pole S of the PMOS tube are electrically connected with power output end 140, the pole G of the PMOS tube and described control unit 150 electrical connections.
4, first switch 120 includes triode, for example, NPN type triode or PNP type triode, below with NPN type three Be illustrated for pole pipe, the collector of the triode is electrically connected with the incoming end 110, the emitter of the triode with Power output end 140 is electrically connected, and the base stage of the triode is electrically connected with described control unit 150.
Certainly, first switch 120 can also be other common switches, and details are not described herein again.
In the present embodiment, the second switch 130 can have following several forms:
1, second switch 130 includes the NMOS tube of two reversal connections, specifically, the pole S (source electrode) of first NMOS tube 131 It being electrically connected with end cell 160, the pole D (drain electrode) of first NMOS tube 131 is electrically connected with the second NMOS tube 132, and described The pole G (grid) of one NMOS tube 131 is electrically connected with described control unit 150;The pole D of second NMOS tube 132 and described the The pole D of one NMOS tube 131 is electrically connected, and the pole S of second NMOS tube is electrically connected with power output end 140, the 2nd NMOS The pole G of pipe 132 is electrically connected with described control unit 150, and the mode of such two NMOS tubes reversal connection can preferably control first The conducting and disconnection of switch 120, and when the disconnection of normal power supply circuit, it, will not be in second switch when detection power supply circuit works Leakage current is generated at 130, thus realisation preferable in such scheme industry, cost is relatively low.In addition, in other realities of the invention It applies in example, the pole D of first NMOS tube is electrically connected with end cell, the pole S of first NMOS tube and the second NMOS tube electricity Connection, the pole G of first NMOS tube is electrically connected with the control unit;The pole S of second NMOS tube and described first The pole S of NMOS tube is electrically connected, and the pole D of second NMOS tube is electrically connected with power output end, the pole G of second NMOS tube and Described control unit electrical connection, such mode are also the mode of two NMOS tubes reversal connection.
2, second switch 130 include two reversal connection PMOS tube, specifically with end cell 160, power output end 140, control The connection type of unit 150 processed is see the 1st point, and details are not described herein again.
3, second switch 130 includes a PMOS tube or a NMOS tube, and control detection power supply circuit equally may be implemented Be turned on or off, by second switch 130 include a NMOS tube for be illustrated, the pole S (source electrode) of the NMOS tube with End cell 160 is electrically connected, and the pole D (drain electrode) of the NMOS tube is electrically connected with power output end 140, the pole G of the NMOS tube (grid) is electrically connected with described control unit 150.
4, first switch 120 includes triode, for example, NPN type triode or PNP type triode, below with NPN type three Be illustrated for pole pipe, the collector of the triode is electrically connected with the incoming end 110, the emitter of the triode with Power output end 140 is electrically connected, and the base stage of the triode is electrically connected with described control unit 150.
Certainly, second switch 130 can also be other common switches, and details are not described herein again.
In the present embodiment, described control unit 150 can be microprocessor, be also possible to other control chips, herein Just repeat no more.In the present embodiment, described control unit 150 is powered by button cell, however, the present invention is not limited thereto, In other embodiments of the invention, described control unit is electrically connected always with end cell, so as to pass through end cell It powers to control unit always.
In the present embodiment, the terminal is the electronic equipment that mobile phone, tablet computer etc. need leakage current test.
Second embodiment
Fig. 3 is second embodiment of the invention terminal leakage current detection circuit, and the circuit of Fig. 3 and the circuit of Fig. 1 are similar, therefore The main difference of the identical element of identical numbers, the present embodiment and first embodiment is the confession of control unit Electricity.
Fig. 3 and Fig. 4 are referred to, in the present embodiment, the incoming end 110 is also electrically connected the of power supply selection circuit 270 One input terminal, the second input terminal electrical connecting terminals battery 160 of the power supply selection circuit 270, the power supply selection circuit 270 Output end be electrically connected control unit 250, to supply power to control unit 250.
Particularly, at terminal in normal operating conditions, the power supply selection circuit 270 select the second input terminal with Output end conducting, first input end and output end disconnect, at this point, the electric power of end cell 160 is via power supply selection circuit 270 Second input, output end supplies control unit 250.At terminal when detecting leakage current condition, the power supply selection circuit 270 selection first input ends are connected with output end, and the second input terminal and output end disconnect, at this point, external power supply and identification module Electric power via first input end, output end supply control unit 250.
In the present embodiment, the power supply selection circuit 270 is single-pole double-throw switch (SPDT), the moved end of the single-pole double-throw switch (SPDT) It is electrically connected with control unit 250, two non-moving ends of the single-pole double-throw switch (SPDT) are electric with incoming end 110 and end cell 160 respectively Connection namely the single-pole double-throw switch (SPDT) first input end and the second input terminal respectively with incoming end 110 and end cell 160 Electrical connection.
In the present embodiment, the single-pole double-throw switch (SPDT) be specifically connected incoming end 110 or conduction terminal battery 160 this End, is to have control unit 250 to be controlled, particularly, the single-pole double-throw switch (SPDT) moved end and electrical connecting terminals under normal conditions The electric power of control unit 250 is supplied by end cell 160 under the non-moving end electrical connection of battery 160 namely normality;Work as control When unit 250 receives leakage current test instruction, namely at terminal when detecting leakage current condition, control unit 250 is controlled The moved end of single-pole double-throw switch (SPDT) is connected with the non-moving end of electrical connection incoming end 110, so that the electric power of control unit 250 is by outside What power supply and identification module supplied.To control single-pole double-throw switch (SPDT) by control unit 250.In addition, in of the invention other In embodiment, the power supply selection circuit can also be the other similar circuit with single-pole double-throw switch (SPDT) function or electronics member Device is constituted, such as relay etc..
In the present embodiment, due to having power supply selection circuit 270, the electric power of processor can pass through external power supply and knowledge Other module supply, to need the terminal of leakage current test not need installing terminal battery 160 when producing terminal, detect In installing terminal battery 160, to save process, large batch of terminal detection is facilitated;Moreover, even if in terminal It is mounted with end cell 160, when leakage current test does not need to remove end cell 160 yet, to save process, reduces into This, facilitates the detection of batch.Moreover, such detection circuit can widen the detection on non-disconnectable end cell 160 The application range of circuit.
In addition, in the present embodiment, it is approximately terminal that the computer 180 obtains current value from regulated power supply 170 Leakage current value, but in order to obtain more accurately leakage current value, it can also be by 180 operation of computer, that is, from regulated power supply The current value that the current value obtained at 170 subtracts the consumption of control unit 250 is just leakage current value, and then can be exported;But due to Control unit 250 consume electric power is very small namely control unit 250 at the current value that flows through it is very low, thus in this implementation The current value that computer 180 obtains from regulated power supply 170 in example is approximately the leakage current value of terminal.
In addition, the terminal includes above-mentioned terminal leakage current detection circuit the present invention also provides a kind of terminal.
In addition, the present invention also provides a kind of terminal leakage current test system, the terminal leakage current test system includes External power supply and identification module and above-mentioned terminal, the external power supply and identification module for supply incoming end external power supply and For output leakage current value.Wherein, in the present embodiment, the external power supply and identification module include regulated power supply and calculating Machine, the regulated power supply are electrically connected with the incoming end of terminal, and the specific regulated power supply connects with terminal leakage current detection circuit Enter end electrical connection, the regulated power supply is connect to obtain the current value of regulated power supply output with computer.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight Point explanation is all differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For device embodiment, since it is basically similar to the method embodiment, so being described relatively simple, related place referring to The part of embodiment of the method illustrates.
Description through the foregoing embodiment, the invention has the following advantages that
Since incoming end is for accessing the external power supply and identification module, first switch, second switch, power supply output End, control unit and end cell are all located in terminal, thus, staff only need by external power supply and identification module with connect Enter end electrical connection, when control unit receives leakage current test instruction, staff can very easily obtain the electric leakage of terminal Flow valuve, easy to operate, the convenient leakage current test to batch terminal, there is no the risk of test leakage, at the same detection efficiency also compared with It is high.Moreover, such detection circuit can widen the application range of the detection circuit on non-disconnectable end cell.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.

Claims (9)

1. a kind of terminal leakage current detection circuit, for being electrically connected with external power supply and identification module characterized by comprising
Incoming end, for accessing the external power supply and identification module, wherein the external power supply and identification module are for supplying Incoming end external power supply and be used for output leakage current value;
End cell, for supplying terminal system electric power;
First switch, input terminal are electrically connected with the incoming end;
Second switch, input terminal are electrically connected with the end cell;
Power output end is electrically connected with the output end of the output end of first switch and second switch respectively;
Control unit controls the conducting and disconnection of first switch and the second switch respectively;Wherein, when control unit receives electric leakage When flowing detection instruction, control unit controls first switch conducting, and controls second switch and disconnect, so that external power supply and identification mould Block obtains leakage current value;
The detection circuit further include power supply selection circuit, the power supply selection circuit respectively with incoming end, end cell, control Unit electrical connection, to supply power to control unit.
2. terminal leakage current detection circuit as described in claim 1, which is characterized in that described control unit controls the power supply Selection circuit works as control unit so that incoming end is electrically connected with control unit or so that end cell is electrically connected with control unit When receiving leakage current test instruction, the incoming end is electrically connected with control unit.
3. terminal leakage current detection circuit as described in claim 1, which is characterized in that the power supply selection circuit includes hilted broadsword The moved end of commutator, the single-pole double-throw switch (SPDT) is electrically connected with control unit, two non-moving ends of the single-pole double throw respectively with Incoming end and end cell electrical connection.
4. terminal leakage current detection circuit as described in claim 1, which is characterized in that the first switch includes two reversal connections PMOS tube, the grid of two PMOS tube is electrically connected with control unit;Or the first switch includes two reversal connections The grid of NMOS tube, two NMOS tubes is electrically connected with control unit.
5. terminal leakage current detection circuit as described in claim 1, which is characterized in that the second switch includes two reversal connections NMOS tube, the grid of two NMOS tubes is electrically connected with control unit;Alternatively, the second switch includes two reversal connections The grid of PMOS tube, two PMOS tube is electrically connected with control unit.
6. terminal leakage current detection circuit as described in claim 1, which is characterized in that the incoming end is terminal USB's Vbus pin.
7. a kind of terminal, which is characterized in that including terminal leakage current detection circuit as claimed in any one of claims 1 to 6.
8. a kind of terminal leakage current test system, which is characterized in that including external power supply and identification module and such as claim 7 institute The terminal stated, the external power supply and identification module are for supplying incoming end external power supply and for output leakage current value.
9. terminal leakage current test system as claimed in claim 8, which is characterized in that the external power supply and identification module packet Regulated power supply and computer are included, the regulated power supply is electrically connected with the incoming end of terminal, and the regulated power supply is connect with computer To obtain the current value of regulated power supply output.
CN201611117721.6A 2016-12-07 2016-12-07 A kind of terminal leakage current detection circuit, terminal and terminal leakage current test system Active CN106526403B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611117721.6A CN106526403B (en) 2016-12-07 2016-12-07 A kind of terminal leakage current detection circuit, terminal and terminal leakage current test system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611117721.6A CN106526403B (en) 2016-12-07 2016-12-07 A kind of terminal leakage current detection circuit, terminal and terminal leakage current test system

Publications (2)

Publication Number Publication Date
CN106526403A CN106526403A (en) 2017-03-22
CN106526403B true CN106526403B (en) 2019-06-11

Family

ID=58342121

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611117721.6A Active CN106526403B (en) 2016-12-07 2016-12-07 A kind of terminal leakage current detection circuit, terminal and terminal leakage current test system

Country Status (1)

Country Link
CN (1) CN106526403B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106959386B (en) * 2017-03-30 2018-09-04 维沃移动通信有限公司 A kind of creepage detection method and mobile terminal
CN114487914B (en) * 2022-04-13 2022-08-19 荣耀终端有限公司 Electronic equipment and leakage current testing method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4705495B2 (en) * 2006-03-23 2011-06-22 株式会社ケーヒン Leakage detection circuit and battery electronic control device
JP2012141199A (en) * 2010-12-28 2012-07-26 Advantest Corp Measuring device
KR102294127B1 (en) * 2014-07-15 2021-08-26 삼성전자주식회사 Leakage current detection device and nonvolatile memory device including the same
CN106164686B (en) * 2014-12-25 2019-10-22 华为技术有限公司 A kind of leakage current test system of terminal
CN107533090B (en) * 2015-05-08 2019-10-22 华为技术有限公司 A kind of electric leakage current test circuit and method
CN105510759B (en) * 2015-11-30 2019-05-28 华为技术有限公司 Electric leak detecting device and its detection method

Also Published As

Publication number Publication date
CN106526403A (en) 2017-03-22

Similar Documents

Publication Publication Date Title
US10153652B2 (en) Charging system
CN101351719B (en) Device for monitoring cell voltage
US7804195B2 (en) Power supply system and protection method
US20110304205A1 (en) Power outlet apparatus with multiple sockets detection, and detection method thereof
US10931125B2 (en) Detection circuit and method for starting charging
CN106526403B (en) A kind of terminal leakage current detection circuit, terminal and terminal leakage current test system
KR20080025522A (en) Apparatus for automatically detecting battery polarity
CN103135028B (en) Antenna detection module and electronic device thereof
CN103176100A (en) Method and device for detecting whether storage battery is normally connected in UPS (uninterrupted power supply) or not
CN104882926B (en) A kind of charging indication and mobile terminal
US10554058B2 (en) Systems and methods for monitoring an operating status of a connector
CN104125173B (en) data communication path switching circuit, vehicle-mounted router and automobile
JP2017041983A (en) Charging system
CN103117590B (en) Uninterruptible power power-supply system provided with simplified voltage detector circuit
CN105451149B (en) A kind of loudspeaker plug-pull detecting circuit and electronic equipment
CN101436425B (en) Circuit for controlling power supply of functional module and wireless data terminal equipment
CN102035250B (en) Semiconductor device, voltage comparison circuit, power management circuit and electronic instrument
JP2015207155A (en) Electronic apparatus
CN106210198A (en) A kind of smart card protection circuit, mobile terminal and smart card guard method
CN102684290A (en) Power supply switching system
CN107706977B (en) Charging current detection method and charging device
CN113949167A (en) Charging device and electronic equipment
CN106797414B (en) A kind of leakage current detection circuit and terminal of terminal
CN210518243U (en) EC reset circuit and electronic equipment based on composite signal
CN212085876U (en) UPS power supply system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant