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 PDFInfo
- 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
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 45
- 230000001105 regulatory Effects 0.000 claims description 22
- 230000002441 reversible Effects 0.000 claims description 12
- 230000005611 electricity Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000000087 stabilizing Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229940074869 Marquis Drugs 0.000 description 1
- VBUNOIXRZNJNAD-UHFFFAOYSA-N Ponazuril Chemical compound CC1=CC(N2C(N(C)C(=O)NC2=O)=O)=CC=C1OC1=CC=C(S(=O)(=O)C(F)(F)F)C=C1 VBUNOIXRZNJNAD-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000750 progressive Effects 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing 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
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.
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)
| 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)
| 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 |
-
2016
- 2016-12-07 CN CN201611117721.6A patent/CN106526403B/en active Active
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 |