CN202548256U - Short-circuit test device - Google Patents
Short-circuit test device Download PDFInfo
- Publication number
- CN202548256U CN202548256U CN 201220102193 CN201220102193U CN202548256U CN 202548256 U CN202548256 U CN 202548256U CN 201220102193 CN201220102193 CN 201220102193 CN 201220102193 U CN201220102193 U CN 201220102193U CN 202548256 U CN202548256 U CN 202548256U
- Authority
- CN
- China
- Prior art keywords
- short
- power supply
- circuit
- test device
- controller
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a short-circuit test device used for testing the short-circuit protection function of a plurality of power supply units in a power supply. The short-circuit test device comprises an oscilloscope, a short-circuit control module and a controller, wherein the oscilloscope is connected to an output terminal of each power supply unit, and the short-circuit control module comprises a plurality of drivers and a plurality of short-circuited circuits; each driver is connected to the controller and is connected to a positive terminal and a negative terminal of the power supply unit through the short-circuited circuit, and the controller is used for controlling a plurality of short-circuited circuits which are in conducting connection with a plurality of drivers so as to short-circuit a plurality of power supply units connected with the conducted short-circuited circuits, and simultaneously used for controlling the oscilloscope to display voltages output by the short-circuited power supply units so as to detect the short-circuit protection function of the power supply units according to the output voltages. The short-circuit function of a plurality of power supply units can be simultaneously tested by the short-circuit test device, and the working efficiency is higher.
Description
Technical field
The utility model relates to a kind of electronic component testing apparatus, relates in particular to a kind of short-circuit test device of the short-circuit protection function in order to testing power supply.
Background technology
All often need test in production phase and the daily use the short-circuit protection function of power supply.And the method for testing of existing power source short-circuit protection function generally to be the output terminal that on measurement jig (becoming a preset supply voltage to be supplied to load in order to the voltage transitions with power supply output), is connected to load one end be provided with a mechanical switch, and through the said switch of manual conducting with the testing power supply short circuit.Yet; In this kind method; The moment of said switch conduction possibly produce noise, make the power supply output that shows on the oscillograph voltage waveform distortion and influence test result, and said mechanical switch is after long-time use; Also influence test result because of contact point generation charing easily, the manual operation test makes that also efficient is lower.
The utility model content
In view of above-mentioned condition, be necessary the short-circuit test device that provides a kind of test accuracy and operating efficiency also higher.
A kind of short-circuit test device; Short-circuit protection function in order to a plurality of power supply units in the testing power supply; This short-circuit test device comprises oscillograph, short circuit control die set and controller, and said oscillograph is connected to the output terminal of each power supply unit, and said short circuit control die set comprises a plurality of drivers and a plurality of short circuit current; Said each driver all is connected to controller; And being connected to the positive terminal and the negative pole end of a power supply unit through a short circuit current, said controller is controlled the short circuit current that a plurality of driver conductings link to each other, a plurality of power supply units that link to each other with the short circuit current of this conducting with short circuit; Controller is controlled the voltage that oscillograph shows a plurality of power supply units outputs of this short circuit simultaneously, with the short-circuit protection function according to this power supply unit of voltage detecting of this output.
Preferably; Said short-circuit test device also comprises measurement jig; The corresponding a plurality of power supply units of said measurement jig are provided with many group input pins and output pin, and said every group of input pin is connected to a power supply unit, and said every group of output pin all is connected to a short circuit current.
Preferably, said short-circuit test device also comprises electronic load, and said electronic load is connected to measurement jig, and provides different load to power supply, with the load capacity of testing power supply through measurement jig.
Preferential, said oscillograph has multiplexer channel, and each power supply unit is connected to a paths.
Preferably, said short circuit current is an electronic switch.
Said short-circuit test device cooperates the short circuit control die set can control the power supply module automatically through controller effectively to be in short-circuit condition and to carry out the short-circuit function test, adopt the mode accuracy of mechanical switch short circuit higher.In addition, this short-circuit test device can carry out the short-circuit function test to a plurality of power supply units simultaneously, and work efficiency is higher.
Description of drawings
Fig. 1 is the theory diagram of the short-circuit test device of the utility model.
Fig. 2 is the circuit theory diagrams of short circuit control die set shown in Figure 1.
The main element symbol description
| The short-circuit test device | 100 |
| |
10 |
| Electronic load | 30 |
| Oscillograph | 50 |
| The short circuit control die |
70 |
| |
71 |
| |
73 |
| |
90 |
| Power supply | 200 |
| Power supply unit | 201 |
Following embodiment will combine above-mentioned accompanying drawing to further specify the utility model.
Embodiment
See also Fig. 1, the short-circuit test device 100 of the utility model can comprise measurement jig 10, electronic load 30, oscillograph 50, short circuit control die set 70 and controller 90 in order to test the short-circuit protection function of a power supply 200.Said power supply 200 is connected to electronic load 30 through measurement jig 10, changes the load capacity of measuring this power supply 200 with the load-carrying through said electronic load 30.Said oscillograph 50 is connected to the output terminal of power supply 200; Controller 90, short circuit control die set 70 are connected to measurement jig 10 successively; Said controller 90 triggers said short circuit control die set 70 with power supply 200 short circuits, shows that through oscillograph 50 voltage of exporting after these power supply 200 short circuits detects the short-circuit protection function of this power supply 200 then.
In the utility model embodiment, said power supply 200 has many group power supply units 201, and every group of power supply unit 201 all have a positive terminal (+) and a negative pole end (-), and said positive terminal (+) is connected to measurement jig 10, negative pole end (-) ground connection.In this embodiment, this short-circuit test device 100 can carry out the short-circuit protection test to many groups power supply unit 201 simultaneously simultaneously.
Said measurement jig 10 becomes a preset supply voltage to be supplied to electronic load 30 in order to the voltage transitions with each power supply unit 201 of power supply 200.The positive terminal of these measurement jig 10 corresponding said a plurality of power supply units 201 and negative pole end are provided with many group input pins (comprising positive pole and negative pole) and organize output pin (comprising positive pole and negative pole) more.This measurement jig 10 is connected to the positive terminal of power supply unit 201 through the positive poles of said many group input pins, and is connected to electronic load 30 and controller 90, the equal ground connection of the negative pole of said input pin and output pin through the positive pole of output pin.So, when one group of output pin phase short circuit of said measurement jig 10 (anodal link to each other and ground connection), will be in short-circuit condition with the corresponding power supply unit 201 of this group output pin with negative pole.
Said electronic load 30 usefulness are so that power supply 200 has the load-carrying of different sizes, to test the load capacity of this power supply 200.
Said oscillograph 50 is connected to the positive terminal of output terminal of each power supply unit 201 of power supply 200; In order to test the output voltage of each power supply unit 201; When judging that through this output voltage power supply 200 is in short-circuit condition, whether start said short-circuit protection function and voltage drop is low to moderate zero.Be appreciated that; This oscillograph 50 comprises multiplexer channel; Whether each passage is connected to a power supply unit 201 respectively, and this oscillograph 50 shows the waveform of a certain passage under the control of controller 90, normal with the short-circuit protection function of confirming the pairing power supply unit 201 of this passage.
Said short circuit control die set 70 comprises some drivers 71 and some groups of short circuit currents 73.Said each driver 71 all is connected to controller 90, and all is connected to one group of output pin of measurement jig 10 through a short circuit current 73.The said short circuit current 73 of said driver 71 conducting under the control of controller 90; So that with the positive pole of these short circuit current 73 corresponding power supply units 201 through measurement jig 10 and this short circuit current 73 ground connection, this power supply unit 201 can be in short-circuit condition and carry out the short-circuit protection function test.
Please consult Fig. 2 in the lump, said driver 71 is made up of two divider resistance R, and said short circuit current 73 is electronic switches such as a FET or relay, in this embodiment, is that example describes with the FET.Said two divider resistance R are serially connected with between controller 90 and the ground successively.Said short circuit current 73 is connected between the two divider resistance R through the grid of FET, through source ground, and is connected to the positive pole of measurement jig 10 through drain electrode.
Said controller 90 is realized a certain power supply unit 201 is in short-circuit condition in order to control short circuit control die set 70.Concrete; When said controller 90 sends a high level signal to said driver 71; FET in the short circuit current 73 that links to each other can be in short-circuit condition with conducting through the FET ground connection of one group of input, output pin and this conducting corresponding in the measurement jig 10 with the positive terminal of the corresponding power supply unit 201 of this short circuit current.This controller 90 is controlled oscillograph 50 demonstrations simultaneously and is in the waveform of the power supply unit 201 corresponding passages of short-circuit condition with this, with the short-circuit protection function through this power supply unit 201 of this wave test.Said controller 90 can be data processing equipments such as a computer or single-chip microcomputer.
When using respectively the organizing power supply unit 201 and carry out short-circuit test of 100 pairs of power supplys 200 of this short-circuit test device; Short circuit current 73 through controller 90 controls are connected with power supply unit 201 corresponding said driver 71 conductings to be measured makes the positive pole of corresponding power supply unit 201 be in short-circuit condition through measurement jig 10 and this short circuit current 73 ground connection.Said controller 90 is controlled oscillograph 50 simultaneously and is shown and the measured waveform of these power supply unit to be measured 201 corresponding passages that the tester can confirm the short-circuit protection function of the power supply unit 201 of this test through this waveform.Be appreciated that at said oscillograph 50 can show under the prerequisite of waveform of multiplexer channel that this short-circuit test device 100 can carry out the short-circuit function test to a plurality of power supply units 201 simultaneously.Concrete; Said controller 90 control short circuit control die set 70 are with a plurality of power supply units 201 short circuits to be measured; Control the waveform that oscillograph 50 shows under these a plurality of power supply unit 201 short-circuit conditions simultaneously, can confirm the short-circuit protection function of these a plurality of power supply units 201 through the voltage that this waveform shows.
The short-circuit test device 100 of the utility model cooperates short circuit control die set 70 can control power supply unit 201 automatically through controller 90 effectively to be in short-circuit condition and to carry out the short-circuit function test, adopt the mode accuracy of mechanical switch short circuit higher.In addition, this short-circuit test device 100 can carry out the short-circuit function test to a plurality of power supply units 201 simultaneously, and testing efficiency is higher.
In addition, those skilled in the art also can do other variation in the utility model spirit, and certainly, these all should be included in the utility model scope required for protection according to the variation that the utility model spirit is done.
Claims (5)
1. short-circuit test device; Short-circuit protection function in order to a plurality of power supply units in the testing power supply; It is characterized in that: said short-circuit test device comprises oscillograph, short circuit control die set and controller, and said oscillograph is connected to the output terminal of each power supply unit, and said short circuit control die set comprises a plurality of drivers and a plurality of short circuit current; Said each driver all is connected to controller; And being connected to the positive terminal of a power supply unit through a short circuit current, said controller is controlled the short circuit current that a plurality of driver conductings link to each other, a plurality of power supply units that link to each other with the short circuit current of this conducting with short circuit; Controller is controlled the voltage that oscillograph shows a plurality of power supply units outputs of this short circuit simultaneously, with the short-circuit protection function according to this power supply unit of voltage detecting of this output.
2. short-circuit test device as claimed in claim 1; It is characterized in that: said short-circuit test device also comprises measurement jig; The corresponding a plurality of power supply units of said measurement jig are provided with many group input pins and output pin; Said every group of input pin is connected to a power supply unit, and said every group of output pin all is connected to a short circuit current.
3. short-circuit test device as claimed in claim 2 is characterized in that: said short-circuit test device also comprises electronic load, and said electronic load is connected to measurement jig, and provides different load to power supply, with the load capacity of testing power supply through measurement jig.
4. short-circuit test device as claimed in claim 1 is characterized in that: said oscillograph has multiplexer channel, and each power supply unit is connected to a paths.
5. short-circuit test device as claimed in claim 1 is characterized in that: said short circuit current is an electronic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220102193 CN202548256U (en) | 2012-03-19 | 2012-03-19 | Short-circuit test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220102193 CN202548256U (en) | 2012-03-19 | 2012-03-19 | Short-circuit test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202548256U true CN202548256U (en) | 2012-11-21 |
Family
ID=47168872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220102193 Expired - Fee Related CN202548256U (en) | 2012-03-19 | 2012-03-19 | Short-circuit test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202548256U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181433A (en) * | 2013-05-24 | 2014-12-03 | 路华科技(深圳)有限公司 | Power supply PCM connecting plate test platform |
| CN104330744A (en) * | 2014-09-19 | 2015-02-04 | 国家电网公司 | Power supply detector for detecting power supply plug-in of microcomputer protective device |
| CN104502773A (en) * | 2015-01-06 | 2015-04-08 | 东莞华贝电子科技有限公司 | Jig and method for detecting short circuit protection function of mobile terminal |
| CN104730404A (en) * | 2013-12-23 | 2015-06-24 | 通用电气能源能量变换技术有限公司 | System and method for diagnosing short circuit and open circuit in power conversion system |
| CN111679222A (en) * | 2020-05-15 | 2020-09-18 | 深圳市崧盛电子股份有限公司 | Detection circuit for short circuit between metal packaging tube and metal radiating fin and short circuit detection device |
| CN113138889A (en) * | 2021-03-26 | 2021-07-20 | 山东英信计算机技术有限公司 | Test circuit and server |
| CN113759275A (en) * | 2020-05-29 | 2021-12-07 | 圣邦微电子（北京）股份有限公司 | Testing device and testing method for power output short circuit |
-
2012
- 2012-03-19 CN CN 201220102193 patent/CN202548256U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181433A (en) * | 2013-05-24 | 2014-12-03 | 路华科技(深圳)有限公司 | Power supply PCM connecting plate test platform |
| CN104181433B (en) * | 2013-05-24 | 2017-02-08 | 路华科技(深圳)有限公司 | Power supply PCM connecting plate test platform |
| CN104730404A (en) * | 2013-12-23 | 2015-06-24 | 通用电气能源能量变换技术有限公司 | System and method for diagnosing short circuit and open circuit in power conversion system |
| CN104330744A (en) * | 2014-09-19 | 2015-02-04 | 国家电网公司 | Power supply detector for detecting power supply plug-in of microcomputer protective device |
| CN104502773A (en) * | 2015-01-06 | 2015-04-08 | 东莞华贝电子科技有限公司 | Jig and method for detecting short circuit protection function of mobile terminal |
| CN111679222A (en) * | 2020-05-15 | 2020-09-18 | 深圳市崧盛电子股份有限公司 | Detection circuit for short circuit between metal packaging tube and metal radiating fin and short circuit detection device |
| CN113759275A (en) * | 2020-05-29 | 2021-12-07 | 圣邦微电子（北京）股份有限公司 | Testing device and testing method for power output short circuit |
| CN113138889A (en) * | 2021-03-26 | 2021-07-20 | 山东英信计算机技术有限公司 | Test circuit and server |
| CN113138889B (en) * | 2021-03-26 | 2022-05-17 | 山东英信计算机技术有限公司 | Test circuit and server |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202548256U (en) | Short-circuit test device | |
| CN201436591U (en) | A voltage current monitoring system applied to power ageing test | |
| CN106154157B (en) | Adjustable surge load test device for electromagnetic relay | |
| CN102879722A (en) | Volt-ampere performance testing device and method for solar array | |
| CN110940898A (en) | Insulation and voltage resistance testing device for electric connector | |
| CN104931830A (en) | Electronic cigarette host test fixture | |
| CN105823990B (en) | A kind of fictitious load for testing SOC power supplys | |
| CN103245869A (en) | Detecting method for integrated circuit power supply base pin short circuit judging | |
| CN105467218A (en) | Contact resistance testing method of circuit breaker used for short-circuit protection | |
| CN117007931A (en) | Power device testing device | |
| CN204903710U (en) | Microwave device ageing tests device | |
| CN108051737B (en) | switch device screening system and method | |
| CN209895333U (en) | Power supply testing device for hard disk backboard of server | |
| CN111736066A (en) | Automatic testing device for detecting circuit breaker | |
| CN105511449B (en) | A kind of test system of automobile controller SMT driving plates | |
| CN213633692U (en) | Conductivity detection circuit and detection device of TVS tube | |
| TWM434214U (en) | Equipment for testing short protecting performance | |
| CN202720280U (en) | Measuring device for electronic module of automobile | |
| CN202182917U (en) | Circuit for testing internal resistance of multiple cells | |
| CN114690737A (en) | Test system of motor control panel | |
| CN206725719U (en) | PLC plate analog detection tools | |
| CN106896320B (en) | PLC board simulation detection jig | |
| CN104635171A (en) | DC power supply testing system | |
| CN103674553A (en) | Novel engine bench wire harness checking instrument | |
| CN101419250B (en) | Voltage test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20140319 |