CN104880632A - High speed power supply system for vehicle electric appliance test - Google Patents
High speed power supply system for vehicle electric appliance test Download PDFInfo
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- CN104880632A CN104880632A CN201510282334.7A CN201510282334A CN104880632A CN 104880632 A CN104880632 A CN 104880632A CN 201510282334 A CN201510282334 A CN 201510282334A CN 104880632 A CN104880632 A CN 104880632A
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- power supply
- voltage sensor
- data card
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- test
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- Control Of Voltage And Current In General (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention discloses a high speed power supply system for a vehicle electric appliance test; the system comprises an industrial control computer carrying a data card; an analog output AOUT0 of the data card is connected with a first voltage sensor and then connected with a first program control power supply; an analog output AOUT1 of the data card is connected with a second voltage sensor and connected with a second program control power supply; the first program control power supply serves as a reference power supply, the second program control power supply serves as a superpose power supply, and superpose output of the first and second program control power supplies is connected with a power amplifier circuit. An output of the power amplifier circuit is connected with a third voltage sensor and connected with an analog input AIN of the data card, thus monitoring an output waveform of the power supply. The analog output AOUT0 of the data card is connected with a differentiating circuit and connected with the first voltage sensor employing the WBV121S07_0.2 voltage sensor having a response frequency of 40 KHz.
Description
Technical field
The invention belongs to technical field of automobile detection, particularly a kind of high-speed power system for car electrics test.
Background technology
Car electrics are in vehicle traveling process, due to the difference of vehicle condition, road conditions, environment etc., voltage waveform and the disturbing pulse of various situation can be met with, therefore, car electrics have to pass through the test of various voltage and pulse before the examination of entrucking road, as company of Audi, BMW company, Daimler Co., Ltd, Volkswagen, Porsche company etc. gives the such standard file of VW80000.But have the voltage condition of many condition harshnesses and high-speed pulse common power to realize.
Summary of the invention
The object of this invention is to provide a kind of power-supply system of PLC technology of the high-speed power superposition for car electrics test.
Technical scheme of the present invention is, a kind of high-speed power system for car electrics test, this system comprises the industrial computer carrying data card, the first programmable power supply is accessed after the analog output AOUT0 of described data card connects the first voltage sensor, the second programmable power supply is accessed after the analog output AOUT1 of described data card connects the second voltage sensor, the first described programmable power supply is as reference power supply, second programmable power supply is as superposition power supply, and the superposing to export of the first programmable power supply and the second programmable power supply accesses power amplifier.
The output of described power amplifier meets the analog input AIN of access data card after tertiary voltage sensor, for monitoring the output waveform of power supply.
The first voltage sensor is connected after the analog output AOUT0 of described data card accesses a differentiating circuit.
Described voltage sensor adopts WBV121S07_0.2 voltage sensor, has response frequency 40KHz.
Of the present invention particularly in, the output able to programme of the board utilizing industrial computer High Speed Analog amount to export, controlling a power supply high speed change in voltage through driving, adding power amplifier, realizing the superposition of two power supplys, obtain the programmable control system of high-speed power superposition.
Accompanying drawing explanation
Fig. 1 is control system schematic diagram of the present invention;
Fig. 2 is system simulation cold start voltage pattern in the invention process;
Fig. 3 is the voltage drop speed of response using present system to export;
Fig. 4 is the voltage rise speed of response using present system to export;
Can find out that from Fig. 3 and 4 the fastest response time is about 25us;
Fig. 5 and Fig. 6 and Fig. 7 uses present system to simulate three kinds of different superimposed pulses voltages.
Embodiment
As shown in Figure 1, in an embodiment of the present invention, can use industrial computer that labview master control is installed, carry NI6024 data card, use analog output AOUT1 (-10V---+10V) to amplify program control reference power supply 0V-30V voltage, use WBV121S07_0.2 voltage sensor, response frequency 40KHz, to analog quantity output signals drive amplification, adopt one group of independent positive and negative 15V Power supply.
Use analog output AOUT0 (-10V---+10V) to amplify program control superposition power supply-15V---+15V voltage, and-15V is superposition trigger jitter.By this circuit design, the output voltage range obtaining power supply is 0V-50V.Use WBV121S07_0.2 voltage sensor, response frequency 40KHz, to analog quantity output signals drive amplification, the output adopting superposition power supply is sensor power power supply; In fact only having could drived control out-put supply by voltage sensor amplifying signal, and therefore, real what determine the power conversion speed of this system is the response frequency of voltage sensor.
Adopt triode group 3DD15 to build power amplifier group, thus by the programming to AOUT0 and AOUT1, the voltage change range that frequency is 40KHz, 0V-50V can be obtained; Export and can the size of bringing onto load electric current then be determined by the number of power discharging transistor group, different output load sizes can be customized as required; The design of this partial circuit is actual is the effect playing power amplification.With other common powers unlike, no matter this circuit load, can the frequency response of the fastest 40KHz, and can be different with load change switching rate unlike common power.
Differentiating circuit can be switched in order to export the needs of different wave with relay at AOUT0 delivery outlet.Native system can also carry out real-time sampling by analog input AIN to output voltage, to monitor output situation.
Claims (4)
1. the high-speed power system for car electrics test, it is characterized in that, this system comprises the industrial computer carrying data card, the first programmable power supply is accessed after the analog output AOUT0 of described data card connects the first voltage sensor, the second programmable power supply is accessed after the analog output AOUT1 of described data card connects the second voltage sensor, the first described programmable power supply is as reference power supply, second programmable power supply is as superposition power supply, and the superposing to export of the first programmable power supply and the second programmable power supply accesses power amplifier.
2. as claimed in claim 1 for the high-speed power system of car electrics test, it is characterized in that, the output of described power amplifier meets the analog input AIN of access data card after tertiary voltage sensor, for monitoring the output waveform of power supply.
3. as claimed in claim 1 for the high-speed power system of car electrics test, it is characterized in that, after the analog output AOUT0 of described data card accesses a differentiating circuit, connect the first voltage sensor.
4. as claimed in claim 1 for the high-speed power system of car electrics test, it is characterized in that, described voltage sensor adopts WBV121S07_0.2 voltage sensor, has response frequency 40KHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510282334.7A CN104880632B (en) | 2015-05-28 | 2015-05-28 | A kind of high-speed power system for car electrics experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510282334.7A CN104880632B (en) | 2015-05-28 | 2015-05-28 | A kind of high-speed power system for car electrics experiment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104880632A true CN104880632A (en) | 2015-09-02 |
| CN104880632B CN104880632B (en) | 2018-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510282334.7A Active CN104880632B (en) | 2015-05-28 | 2015-05-28 | A kind of high-speed power system for car electrics experiment |
Country Status (1)
| Country | Link |
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| CN (1) | CN104880632B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108646635A (en) * | 2018-06-27 | 2018-10-12 | 广东好帮手环球科技有限公司 | A kind of power control |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11122918A (en) * | 1997-10-13 | 1999-04-30 | Izumi Denki Kk | High-voltage power supply |
| CN1385772A (en) * | 2001-05-16 | 2002-12-18 | 深圳市中兴通讯股份有限公司上海第二研究所 | High-voltage dc power supply program control system |
| CN101572414A (en) * | 2009-05-27 | 2009-11-04 | 重庆华渝电气仪表总厂 | Triphase intermediate frequency power supply remote voltage compensation three closed loop feedback regulation device |
| CN203299599U (en) * | 2013-05-09 | 2013-11-20 | 威凯检测技术有限公司 | Multifunctional programmable test power supply |
-
2015
- 2015-05-28 CN CN201510282334.7A patent/CN104880632B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11122918A (en) * | 1997-10-13 | 1999-04-30 | Izumi Denki Kk | High-voltage power supply |
| CN1385772A (en) * | 2001-05-16 | 2002-12-18 | 深圳市中兴通讯股份有限公司上海第二研究所 | High-voltage dc power supply program control system |
| CN101572414A (en) * | 2009-05-27 | 2009-11-04 | 重庆华渝电气仪表总厂 | Triphase intermediate frequency power supply remote voltage compensation three closed loop feedback regulation device |
| CN203299599U (en) * | 2013-05-09 | 2013-11-20 | 威凯检测技术有限公司 | Multifunctional programmable test power supply |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108646635A (en) * | 2018-06-27 | 2018-10-12 | 广东好帮手环球科技有限公司 | A kind of power control |
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| Publication number | Publication date |
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| CN104880632B (en) | 2018-07-24 |
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