CN105759192A - Test circuit, communication base station, new energy power plant, electrical equipment, artificial intelligence robot, smart home, and smart electric vehicle - Google Patents

Test circuit, communication base station, new energy power plant, electrical equipment, artificial intelligence robot, smart home, and smart electric vehicle Download PDF

Info

Publication number
CN105759192A
CN105759192A CN201610100774.0A CN201610100774A CN105759192A CN 105759192 A CN105759192 A CN 105759192A CN 201610100774 A CN201610100774 A CN 201610100774A CN 105759192 A CN105759192 A CN 105759192A
Authority
CN
China
Prior art keywords
diode
power supply
supply unit
voltage
measured
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.)
Granted
Application number
CN201610100774.0A
Other languages
Chinese (zh)
Other versions
CN105759192B (en
Inventor
刘伟
聂黎生
聂新明
赵新生
薛家祥
文元美
田亚平
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.)
TANGSHAN GUOXIN JINGYUAN ELECTRONICS CO., LTD.
Original Assignee
Hunan Qingchuang Science And 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 Hunan Qingchuang Science And Technology Co Ltd filed Critical Hunan Qingchuang Science And Technology Co Ltd
Priority to CN201610100774.0A priority Critical patent/CN105759192B/en
Publication of CN105759192A publication Critical patent/CN105759192A/en
Application granted granted Critical
Publication of CN105759192B publication Critical patent/CN105759192B/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
    • G01R31/26Testing of individual semiconductor devices
    • G01R31/2607Circuits therefor
    • G01R31/2632Circuits therefor for testing diodes
    • 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

Provided is an instant open circuit test circuit for a diode of which the negative electrode is connected with a high-voltage electrode of a power source. A tested circuit comprises a direct-current power source (BAT) and a to-be-tested diode (D3) of which the negative electrode is connected with a high-voltage electrode of the direct-current power source. The test circuit is characterized by comprising a current limiter (FR), a bootstrap module (ZJMK), a sampling module (CYMK), a switch (K1), and a program-controlled module (CKMK). A communication base station, a new energy power plant, electrical equipment, an artificial intelligence robot, a smart home and a smart electric vehicle are all provided with the test circuit. The test circuit is low in cost, flexible in application, long in service life, not easy to damage, and stable and reliable. During running of the direct-current power source, whether there is an open circuit in the 'diode of which the positive electrode is connected with the high-voltage electrode of the direct-current power source' can be tested by use of the electric energy of the direct-current power source.

Description

Test circuit, communication base station, generation of electricity by new energy station, electrical devices, artificial intelligence robot, Smart Home, intelligent electric motor car
Technical field
The invention belongs to applying electronic field, the instant open test circuit of the diode that negative pole is connected with power supply high-pressure stage.
Background technology
The operating instant self-inspection of circuit has huge meaning for the appearance of prevention circuits safety problem, prior art does not have the instant testing method of the diode that anticathode is connected with power supply high-pressure stage, if that is when the positive pole of a diode is connected with power supply high-pressure stage, diode opens a way suddenly (owing to puncturing, burning), so circuit is difficult to be immediately detected by self-checking circuit or program, and this lost efficacy for instant testing circuit is a huge trouble.
Summary of the invention
For solving the problem of narration in technical background, the present invention proposes the instant open test circuit of the diode that negative pole is connected with power supply high-pressure stage.In the application DC source ' high-pressure stage ' refer to DC source each extremely in ' pole that voltage is of a relatively high ' such as positive pole, DC source ' low pressure pole ' refer to DC source each extremely in ' pole that voltage is relatively low ', such as negative pole (ground of power supply), negative voltage pole (voltage is negative).
The present invention has following technology contents.
1, the instant open test circuit of the diode that negative pole is connected with power supply high-pressure stage, circuit-under-test includes a DC source (BAT), diode to be measured (D3), the negative pole of diode to be measured (D3) is connected with the high-pressure stage of DC source, it is characterised in that: include current limiter (FR), bootstrap module (ZJMK), sampling module (CYMK), switch (K1), program control module (CKMK);
Current limiter (FR) has two resistive links, and two resistive links of current limiter (FR) can play the effect of restriction electric current when being connected in circuit;
Bootstrap module (ZJMK) has earth terminal and bootstrapping end, has perceptual device (L1) between earth terminal and the bootstrapping end of bootstrap module (ZJMK);
Two resistive links of current limiter (FR) are connected among the electric path of the high-pressure stage of DC source (BAT) and the positive pole of diode to be measured (D3);
The bootstrapping end of bootstrap module (ZJMK) is connected with the positive pole of diode to be measured (D3);
nullThe Tandem of switch (K1) is in the electric path between the earth terminal and DC source (BAT) low pressure pole of bootstrap module (ZJMK),The shutoff of the switching channels of switch (K1) and conducting state can be programmed module (CKMK) and be controlled,When diode to be measured (D3) disconnects,The self inductance effect of the perceptual device (L1) of the handover trigger bootstrap module (ZJMK) of shutoff and the conducting state of the switching channels of switch (K1) promote bootstrapping end voltage increase and can be higher than the magnitude of voltage of high-pressure stage of DC source (BAT) and the turn-on voltage of diode to be measured (D3) and,Diode to be measured (D3) is if normal, and the voltage after the bootstrapping end of bootstrap module (ZJMK) being booted due to the effect of diode to be measured (D3) can decline rapidly,Until its magnitude of voltage equal to or less than magnitude of voltage and the diode to be measured (D3) of the high-pressure stage of DC source (BAT) turn-on voltage and;
The magnitude of voltage of the bootstrapping end of bootstrap module (ZJMK) can be obtained data and send program control module (CKMK) to by sampling module (CYMK).
2, the instant open test circuit of the diode that the negative pole as described in technology contents 1 is connected with power supply high-pressure stage, it is characterised in that: current limiter (FR) is resistance, light emitting diode.
3, the instant open test circuit of the diode that the negative pole as described in technology contents 1 is connected with power supply high-pressure stage, it is characterised in that: the perceptual device (L1) having between earth terminal and the bootstrapping end of bootstrap module (ZJMK) is inductance.
4, the instant open test circuit of the diode that the negative pole as described in technology contents 1 is connected with power supply high-pressure stage, it is characterised in that: sampling module (CYMK) is made up of sampling resistor.
5, the instant open test circuit of the diode that the negative pole as described in technology contents 1 is connected with power supply high-pressure stage, it is characterized in that: the perceptual device (L1) having between earth terminal and the bootstrapping end of bootstrap module (ZJMK) is inductance, bootstrap module (ZJMK), also comprise the first electric capacity (C1) and the first resistance (R1), one end of first electric capacity (C1) is connected with one end of the first resistance (R1), the end that first electric capacity (C1) is not connected with the first resistance (R1) is connected with bootstrapping end, (end that C1 is connected is not connected first resistance (R1) with earth terminal with the first electric capacity.
6, the instant open test circuit of the diode that the negative pole as described in technology contents 1 is connected with power supply high-pressure stage, it is characterized in that: also include the first stabilivolt (ZD1), what the first stabilivolt (ZD1) was correct is connected on the overtension of the positive pole preventing diode to be measured (D3) in the electric path between the positive pole of diode to be measured (D3) and the low pressure pole of DC source (BAT), the voltage difference of the voltage stabilizing value of the first stabilivolt (ZD1) high-pressure stage more than DC source (BAT) and low pressure pole, the voltage stabilizing value of the first stabilivolt (ZD1) is less than three times of voltage difference of high-pressure stage and the low pressure pole of DC source (BAT).
7, the instant open test circuit of the diode that the negative pole as described in technology contents 1 is connected with power supply high-pressure stage; it is characterized in that: also include the second stabilivolt (ZD2), what the second stabilivolt (ZD2) was correct is connected in the electric path between the negative pole of diode to be measured (D3) and the low pressure pole of DC source (BAT) and plays the effect protecting DC source (BAT).
8, the instant open test circuit of the diode that the negative pole as described in technology contents 1 is connected with power supply high-pressure stage, it is characterized in that: also include the second electric capacity (C2), what the second electric capacity (C2) was correct is connected in the electric path between the negative pole of diode to be measured (D3) and the low pressure pole of DC source (BAT) and plays filter action.
9, the instant open test circuit of the diode that the negative pole as described in technology contents 1 is connected with power supply high-pressure stage, it is characterised in that: also there is the device (LED) for notifying user test result.
10, communication base station, has power supply unit, it is characterised in that: power supply unit has the technical scheme described in technology contents 1.
11, generation of electricity by new energy station, has power supply unit, it is characterised in that: power supply unit has the technical scheme described in technology contents 1.
12, voltanism equipment, has power supply unit, it is characterised in that: power supply unit has the technical scheme described in technology contents 1.
13, artificial intelligence robot, has power supply unit, it is characterised in that: power supply unit has the technical scheme described in technology contents 1.
14, Smart Home, has power supply unit, it is characterised in that: power supply unit has the technical scheme described in technology contents 1.
15, intelligent electric motor car, has power supply unit, it is characterised in that: power supply unit has the technical scheme described in technology contents 1.
Technology contents illustrates and beneficial effect.
Principle: program control module (CKMK) obtains bootstrap module (ZJMK) by sampling module (CYMK) and starts the magnitude of voltage of the bootstrapping end after bootstrapping function, and use the difference that the magnitude of voltage of acquisition deducts ' turn-on voltage of the magnitude of voltage of the high-pressure stage of DC source (BAT) and diode to be measured (D3) and ' to may determine that whether diode to be measured (D3) opens a way.
The present invention is with low cost, applying flexible, long service life, be hardly damaged, reliable and stable, can utilize when DC source runs whether the power test ' diode that positive pole is connected with the high-pressure stage of DC source ' of DC source exists open circuit.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment 1, and P is points of common connection.
It is embodied as example
Below in conjunction with embodiment, the present invention will be described.
Embodiment 1, as shown in Figure 1, the instant open test circuit of the diode that negative pole is connected with power supply high-pressure stage, circuit-under-test includes a DC source BAT, diode D3 to be measured, the negative pole of diode D3 to be measured is connected with the high-pressure stage of DC source, it is characterised in that: include current limiter FR, bootstrap module ZJMK, sampling module CYMK, switch K1, program control module CKMK;
Current limiter FR has two resistive links, and two resistive links of current limiter FR can play the effect of restriction electric current when being connected in circuit;
Bootstrap module ZJMK has earth terminal and bootstrapping end, has perceptual device L1 between earth terminal and the bootstrapping end of bootstrap module ZJMK;
Two resistive links of current limiter FR are connected among the electric path of the high-pressure stage of DC source BAT and the positive pole of diode D3 to be measured;
The bootstrapping end of bootstrap module ZJMK is connected with the positive pole of diode D3 to be measured;
nullThe Tandem of switch K1 is in the electric path between the earth terminal and DC source BAT low pressure pole of bootstrap module ZJMK,The shutoff of the switching channels of switch K1 can be programmed module CKMK with conducting state and be controlled,When diode D3 to be measured disconnects,The self inductance effect of the perceptual device L1 of the handover trigger bootstrap module ZJMK of shutoff and the conducting state of the switching channels of switch K1 promote bootstrapping end voltage increase and can be higher than the magnitude of voltage of high-pressure stage of DC source BAT and the turn-on voltage of diode D3 to be measured and,If diode D3 to be measured is normal, the voltage after the bootstrapping end of bootstrap module ZJMK being booted due to the effect of diode D3 to be measured can decline rapidly,Until the turn-on voltage of magnitude of voltage and the diode D3 to be measured of the high-pressure stage that its magnitude of voltage is equal to or less than DC source BAT and;
The magnitude of voltage of the bootstrapping end of bootstrap module ZJMK can be obtained data and send program control module CKMK to by sampling module CYMK.
Current limiter FR is resistance.
The perceptual device L1 having between earth terminal and the bootstrapping end of bootstrap module ZJMK is inductance.
Sampling module CYMK is made up of sampling resistor.
The perceptual device L1 having between earth terminal and the bootstrapping end of bootstrap module ZJMK is inductance, bootstrap module ZJMK, also comprise the first electric capacity C1 and the first resistance R1, one end of first electric capacity C1 is connected with one end of the first resistance R1, first electric capacity C1 is not connected with bootstrapping end with the first resistance R1 end being connected, and the first resistance R1 is not connected with earth terminal with the first electric capacity C1 end being connected.
Also include the first stabilivolt ZD1, electric path between positive pole and the low pressure pole of DC source BAT of what the first stabilivolt ZD1 was correct be connected on diode to be measured (D3) prevents the overtension of the positive pole of diode D3 to be measured, three times of the voltage difference of the voltage difference of the voltage stabilizing value of the first stabilivolt ZD1 high-pressure stage more than DC source BAT and low pressure pole, the voltage stabilizing value of the first stabilivolt ZD1 high-pressure stage less than DC source BAT and low pressure pole.
Also include the second stabilivolt ZD2, the electric path between negative pole and the low pressure pole of DC source BAT of what the second stabilivolt ZD2 was correct be connected on diode to be measured (D3) plays the effect of protection DC source BAT.
Also include the second electric capacity C2, the electric path between negative pole and the low pressure pole of DC source BAT of what the second electric capacity C2 was correct be connected on diode to be measured (D3) plays filter action.
DC source BAT is fuel cell.Also there is the device LED lamp bead for notifying user test result.
Program control module CKMK is a single-chip microcomputer;The GP1 adopting the R21 and single-chip microcomputer PIC12F510 of module CYMK in Fig. 1 is connected, the pattern of the GP1 of PIC12F510 is output mode, output signal can use when being 0 so that sampling module CYMK can normal operation as place, it is that GP1, CP2 could be arranged to output mode and export 1 it can also be provided that high-impedance state that sampling module CYMK does not work, and this does can saves energy.
IN1, IN2, IN3, IN4 paired in figure is connected together, this be consistent with those skilled in the art chart custom.
Embodiment 2, communication base station, there is power supply unit, it is characterised in that: power supply unit has the technical scheme described in embodiment 1.
Embodiment 3, generation of electricity by new energy station, have power supply unit, it is characterised in that: power supply unit has the technical scheme described in embodiment 1.
Embodiment 4, voltanism equipment, have power supply unit, it is characterised in that: power supply unit has the technical scheme described in embodiment 1.
Embodiment 5, artificial intelligence robot, have power supply unit, it is characterised in that: power supply unit has the technical scheme described in embodiment 1.
Embodiment 6, Smart Home, have power supply unit, it is characterised in that: power supply unit has the technical scheme described in embodiment 1.
Embodiment 7, intelligent electric motor car, have power supply unit, it is characterised in that: power supply unit has the technical scheme described in embodiment 1.
Embodiment 8, electronic equipment, have power supply unit, it is characterised in that: power supply unit has the technical scheme described in embodiment 1.
Embodiment 9, electric machinery, have power supply unit, it is characterised in that: power supply unit has the technical scheme described in embodiment 1.
Embodiment 10, uninterrupted power source, have power supply unit, it is characterised in that: power supply unit has the technical scheme described in embodiment 1.
Described in the application ' user ' can be the mankind can also be automation equipment such as computer, mechanical system, the computer system of automatic control, artificial intelligence system.
The not quite clear place of this explanation is prior art or known general knowledge, therefore does not repeat.

Claims (10)

1. the instant open test circuit of the diode that negative pole is connected with power supply high-pressure stage, circuit-under-test includes a DC source (BAT), diode to be measured (D3), the negative pole of diode to be measured (D3) is connected with the high-pressure stage of DC source, it is characterised in that: include current limiter (FR), bootstrap module (ZJMK), sampling module (CYMK), switch (K1), program control module (CKMK);
Current limiter (FR) has two resistive links, and two resistive links of current limiter (FR) can play the effect of restriction electric current when being connected in circuit;
Bootstrap module (ZJMK) has earth terminal and bootstrapping end, has perceptual device (L1) between earth terminal and the bootstrapping end of bootstrap module (ZJMK);
Two resistive links of current limiter (FR) are connected among the electric path of the high-pressure stage of DC source (BAT) and the positive pole of diode to be measured (D3);
The bootstrapping end of bootstrap module (ZJMK) is connected with the positive pole of diode to be measured (D3);
nullThe Tandem of switch (K1) is in the electric path between the earth terminal and DC source (BAT) low pressure pole of bootstrap module (ZJMK),The shutoff of the switching channels of switch (K1) and conducting state can be programmed module (CKMK) and be controlled,When diode to be measured (D3) disconnects,The self inductance effect of the perceptual device (L1) of the handover trigger bootstrap module (ZJMK) of shutoff and the conducting state of the switching channels of switch (K1) promote bootstrapping end voltage increase and can be higher than the magnitude of voltage of high-pressure stage of DC source (BAT) and the turn-on voltage of diode to be measured (D3) and,Diode to be measured (D3) is if normal, and the voltage after the bootstrapping end of bootstrap module (ZJMK) being booted due to the effect of diode to be measured (D3) can decline rapidly,Until its magnitude of voltage equal to or less than magnitude of voltage and the diode to be measured (D3) of the high-pressure stage of DC source (BAT) turn-on voltage and;
The magnitude of voltage of the bootstrapping end of bootstrap module (ZJMK) can be obtained data and send program control module (CKMK) to by sampling module (CYMK).
2. the instant open test circuit of the diode that negative pole as claimed in claim 1 is connected with power supply high-pressure stage, it is characterized in that: the perceptual device (L1) having between earth terminal and the bootstrapping end of bootstrap module (ZJMK) is inductance, bootstrap module (ZJMK), also comprise the first electric capacity (C1) and the first resistance (R1), one end of first electric capacity (C1) is connected with one end of the first resistance (R1), the end that first electric capacity (C1) is not connected with the first resistance (R1) is connected with bootstrapping end, (end that C1 is connected is not connected first resistance (R1) with earth terminal with the first electric capacity.
3. the instant open test circuit of the diode that negative pole as claimed in claim 1 is connected with power supply high-pressure stage, it is characterized in that: also include the first stabilivolt (ZD1), what the first stabilivolt (ZD1) was correct is connected on the overtension of the positive pole preventing diode to be measured (D3) in the electric path between the positive pole of diode to be measured (D3) and the low pressure pole of DC source (BAT), the voltage difference of the voltage stabilizing value of the first stabilivolt (ZD1) high-pressure stage more than DC source (BAT) and low pressure pole, the voltage stabilizing value of the first stabilivolt (ZD1) is less than three times of voltage difference of high-pressure stage and the low pressure pole of DC source (BAT).
4. the instant open test circuit of the diode that negative pole as claimed in claim 1 is connected with power supply high-pressure stage, it is characterised in that: also there is the device (LED) for notifying user test result.
5. communication base station, has power supply unit, it is characterised in that: power supply unit has the technical scheme described in claim 1.
6. generation of electricity by new energy station, has power supply unit, it is characterised in that: power supply unit has the technical scheme described in claim 1.
7. voltanism equipment, has power supply unit, it is characterised in that: power supply unit has the technical scheme described in claim 1.
8. artificial intelligence robot, has power supply unit, it is characterised in that: power supply unit has the technical scheme described in claim 1.
9. Smart Home, has power supply unit, it is characterised in that: power supply unit has the technical scheme described in claim 1.
10. intelligent electric motor car, has power supply unit, it is characterised in that: power supply unit has the technical scheme described in claim 1.
CN201610100774.0A 2016-02-24 2016-02-24 Test circuit, communication base station, generation of electricity by new energy station, electrical devices, artificial intelligence robot, smart home, intelligent electric motor car Active CN105759192B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610100774.0A CN105759192B (en) 2016-02-24 2016-02-24 Test circuit, communication base station, generation of electricity by new energy station, electrical devices, artificial intelligence robot, smart home, intelligent electric motor car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610100774.0A CN105759192B (en) 2016-02-24 2016-02-24 Test circuit, communication base station, generation of electricity by new energy station, electrical devices, artificial intelligence robot, smart home, intelligent electric motor car

Publications (2)

Publication Number Publication Date
CN105759192A true CN105759192A (en) 2016-07-13
CN105759192B CN105759192B (en) 2019-02-01

Family

ID=56330272

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610100774.0A Active CN105759192B (en) 2016-02-24 2016-02-24 Test circuit, communication base station, generation of electricity by new energy station, electrical devices, artificial intelligence robot, smart home, intelligent electric motor car

Country Status (1)

Country Link
CN (1) CN105759192B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5572878A (en) * 1978-11-28 1980-06-02 Tdk Corp Measuring method for variation rate of amplification factor of emitter earth direct current to direct-current collector current of transistor
CN101378226A (en) * 2007-08-27 2009-03-04 通嘉科技股份有限公司 Power source converter with diode opened circuit protection mechanism and pulse-width modulation controller thereof
CN101778502A (en) * 2009-12-25 2010-07-14 安徽问天量子科技股份有限公司 Light-emitting diode open-circuit-protection application specific integrated circuit
CN101865964A (en) * 2009-04-14 2010-10-20 尼克森微电子股份有限公司 System open test method
CN103364675A (en) * 2012-03-30 2013-10-23 海洋王(东莞)照明科技有限公司 Wire disconnection detecting circuit and wire disconnection detecting device
CN203444073U (en) * 2013-09-23 2014-02-19 江苏新通达电子科技股份有限公司 System capable of detecting open circuit and short circuit of multi-path LEDs by using single-path AD port
CN104507243A (en) * 2014-12-04 2015-04-08 中国船舶重工集团公司第七一七研究所 Light-emitting diode and laser diode open circuit fault detection circuit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5572878A (en) * 1978-11-28 1980-06-02 Tdk Corp Measuring method for variation rate of amplification factor of emitter earth direct current to direct-current collector current of transistor
CN101378226A (en) * 2007-08-27 2009-03-04 通嘉科技股份有限公司 Power source converter with diode opened circuit protection mechanism and pulse-width modulation controller thereof
CN101865964A (en) * 2009-04-14 2010-10-20 尼克森微电子股份有限公司 System open test method
CN101778502A (en) * 2009-12-25 2010-07-14 安徽问天量子科技股份有限公司 Light-emitting diode open-circuit-protection application specific integrated circuit
CN103364675A (en) * 2012-03-30 2013-10-23 海洋王(东莞)照明科技有限公司 Wire disconnection detecting circuit and wire disconnection detecting device
CN203444073U (en) * 2013-09-23 2014-02-19 江苏新通达电子科技股份有限公司 System capable of detecting open circuit and short circuit of multi-path LEDs by using single-path AD port
CN104507243A (en) * 2014-12-04 2015-04-08 中国船舶重工集团公司第七一七研究所 Light-emitting diode and laser diode open circuit fault detection circuit

Also Published As

Publication number Publication date
CN105759192B (en) 2019-02-01

Similar Documents

Publication Publication Date Title
CN103250061B (en) Insulation resistance measurement circuit having self-est function without generating leakage current
CN203720299U (en) Relay coil driving diagnosis device
CN205787014U (en) A kind of D.C. contactor main contacts testing circuit
CN105301381A (en) Automatic surge testing system and testing method
CN104849609A (en) Device for detecting power battery voltage sampling line sequence of electric car
CN103713232A (en) Intelligent alarm capable of preventing battery reverse polarity
CN202634383U (en) Power switch and overvoltage power-off controller thereof
CN204578083U (en) To ask for power type lightning arrester supervisory control system
CN201110878Y (en) Aging test system
CN105576603A (en) Double-input leakage protector
CN205847076U (en) AC D/C power
CN105759192A (en) Test circuit, communication base station, new energy power plant, electrical equipment, artificial intelligence robot, smart home, and smart electric vehicle
CN104977858A (en) Control method of vehicle-mounted electronic device turn-on and turn-off
CN203772980U (en) Wiring structure used for detecting passive switch signal
CN203415942U (en) Fault signal processing circuit
CN105471086A (en) Redundant power system and current adjustment method
CN105759191A (en) Test circuit, communication base station, new energy power plant, direct-current power system, artificial intelligence robot, smart home, and smart electric vehicle
CN105048301A (en) Intelligent power box capable of detecting output voltage and self-repairing faults
CN204269795U (en) Power supply automatic detecting equipment
CN105548797A (en) Method for detecting fuse through microcomputer, photovoltaic power grid, UPS power source special for computer and artificial intelligent robot
CN114755569A (en) Relay function detection device and use method thereof
CN209640434U (en) A kind of equipment for the vehicle-mounted school VOBC line
CN207473690U (en) A kind of Skill Competition instrument
CN203825134U (en) Device for detecting flat cable welding sequence of lithium battery protection board
CN208459565U (en) The state monitoring apparatus of electric vehicle and its power battery and contactor

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20181220

Address after: 063000 Xinxing Electronic Industrial Park, Yutian County, Tangshan City, Hebei Province

Applicant after: TANGSHAN GUOXIN JINGYUAN ELECTRONICS CO., LTD.

Address before: 410200 4/F 4100, B1 District, Wantian International Logistics Park, Dingziwan Street, Wangcheng District, Changsha City, Hunan Province

Applicant before: HUNAN QINGCHUANG SCIENCE AND TECHNOLOGY CO., LTD.

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant