CN2287353Y - High voltage and high speed power pulse generator - Google Patents
High voltage and high speed power pulse generator Download PDFInfo
- Publication number
- CN2287353Y CN2287353Y CN97214012U CN97214012U CN2287353Y CN 2287353 Y CN2287353 Y CN 2287353Y CN 97214012 U CN97214012 U CN 97214012U CN 97214012 U CN97214012 U CN 97214012U CN 2287353 Y CN2287353 Y CN 2287353Y
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- pulse
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Abstract
The utility model provides a high voltage and high speed power pulse generator, which is composed of an external trigger pulse circuit, a photocoupler, a driving pulse circuit, a high voltage pulse output circuit, and a shell body. Compared with the existing square-wave generator, the utility model has the advantages of high repeated frequency, and strong load resistant capacity, and the utility model can adjust continuously output pulse amplitude in a scope of from 0 V to-2000 V and +2000V. The rising and the falling edges of pulse are the range of tens of nanoseconds. The utility model is suitable for a timeofflight mass spectrometer system, such as straight pipe, concatenation, reflection, etc., and the utility model is also suitable for other occasions needing high voltage pulse.
Description
The utility model relates to pulse generator.
The square-wave pulse generator that adopts the small-power high-frequency triode to make, pulse rising and trailing edge minimum are 100ps, and the repetition rate maximum can reach 260MHZ, and output spoke degree is usually less than 250V.Output amplitude is higher than the square-wave pulse generator of 250V, utilizes the plural serial stage of high-frequency triode and electric capacity, make its snowslide wear the rising edge that discharge obtains nanosecond, but a little less than the anti-load capacity, repetition rate is low, can not be operated in low-pressure state, as less than 250V.
The purpose of this utility model is to provide a kind of anti-load capacity strong, the repetition rate height, and output amplitude 0～± the continuously adjustable high-voltage high-speed output pulses of 2000V generator.
The utility model is realized in the following ways.
The utility model is made of external trigger pulse circuit, photoelectrical coupler, driving pulse circuit, high-voltage pulse output circuit and housing.One end of photoelectrical coupler is connected with the external trigger pulse circuit, another termination driving pulse circuit, and the high-voltage pulse output circuit is connected with the driving pulse circuit.The high-voltage pulse output circuit adopts has the switching device of the VMOS power field effect pipe of high drain-source breakdown voltage as high-voltage pulse.As field effect transistor such as BUZ50A, MTP3N100.Also can be with the VMOS power field effect pipe of series connection as the switching device of high-voltage pulse.Be provided with in the driving pulse circuit to open and drive and turn-off drive circuit.When an external trigger pulse after photoelectric coupler isolation, open drive circuit and turn-off the VMOS tube grid trigger impulse that drive circuit obtains a pair of complete paraphase, make and VMOS pipe that the unlatching drive circuit is connected and the not conducting simultaneously of VMOS pipe that is connected with the shutoff drive circuit.Like this, after trigger impulse arrives the high-voltage pulse output circuit, the VMOS pipe conducting that is connected with the unlatching drive circuit, the VMOS pipe that is connected with the shutoff drive circuit turn-offs, direct impulse of generation in load.If do not discharge measure, will keep high potential.In like manner,, can in load, produce a negative-going pulse, thereafter along also keeping negative potential by turn-offing the VMOS tube grid trigger impulse that drive circuit obtains.These two positive and negative pulse stacks in load just can produce the more flat pulse in top.
Compare with existing square-wave generator, the utility model repetition rate height, the repetition rate maximum can reach 10KHZ; Anti-load capacity is strong, and maximum average power is output as 5W, peak power is output as 16KW; Output pulse amplitude 0～native 2000V is adjustable continuously; Pulse rising and trailing edge are tens of nanosecond.The utility model can be used for flight time mass spectrum meter systems such as straight tube, tandem and reflection, and other needs the occasion of high-voltage pulse.
The utility model will be further described below in conjunction with accompanying drawing.
Accompanying drawing 2, the utility model circuit diagram.
Referring to accompanying drawing, the switching device of high-voltage pulse output circuit 8 adopts the BUZ50A field effect transistor.In order to obtain the output pulse of maximum 2000V, with two BUZ50A field effect transistor series connection, grid drives respectively.Therefore, driving pulse circuit 7 of the present utility model is provided with two pairs and opens driving and turn-off drive circuit, also is provided with four photoelectrical couplers 2 simultaneously, and four drive circuits are isolated and and external circuit partition mutually.The utility model adopts the 6N137 photoelectrical coupler, and effectively isolation voltage reaches 2500V.Four photoelectrical couplers 2 are driven by same external trigger pulse circuit 1.Open the T in the drive circuit 3
1, T
2, T
3And T
4, T
5, T
6The output buffer stage of forming can effectively drive the BUZ50A field effect transistor Q of high-voltage pulse output circuit 8
1, Q
2Q
1, Q
2The R of place's serial connection
4, R
10Issuable parasitic oscillation in the time of can preventing high-frequency work.The working method of turn-offing drive circuit is paraphase with opening drive circuit but VMOS manages the triggering of the coral utmost point.C in the high-voltage pulse output circuit 8
1, C
2The ability of keeping that can improve the utility model high voltage pulse is set, prevent the high voltage pulse decay.Output resistance R
25Be used for current limliting and impedance matching.What of series connection VMOS pipe are maximum output pulse amplitude of the present utility model can decide by, and a pair of as only having, output amplitude is 1000V to the maximum, and driving, buffer circuit are simpler; If any 3 pairs, the output amplitude maximum can be 3000V, and at this moment driving pulse circuit, buffer circuit complexity are wanted corresponding increase.
The utility model can export with trigger impulse with wide positive and negative high-voltage pulse, the pulse amplitude adjustment by external DC high-voltage power supply 6 (0～± 2000V) control.Need HV-ground connection for obtaining direct impulse, HV+ connects positive supply.Obtaining negative-going pulse then needs HV+ ground connection, and HV-connects negative supply.High-voltage pulse also can float over-exports on the voltage, connect another DC power supply as ground connection changing into HV+ or HV-.
Claims (4)
1. high-voltage high-speed output pulses generator, comprise external trigger pulse circuit [1], it is characterized in that also comprising photoelectrical coupler [2], driving pulse circuit [7], high-voltage pulse output circuit [8] and housing, one end of photoelectrical coupler [2] is connected with external trigger pulse circuit [1], another termination driving pulse circuit [7], high-voltage pulse output circuit [8] is connected with driving pulse circuit [7].
2. pulse generator as claimed in claim 1 is characterized in that high-voltage pulse output circuit [8] adopts the switching device of VMOS power field effect pipe as high-voltage pulse.
3. as claim 1,2 described pulse generators, it is characterized in that can be with the VMOS power field effect pipe of the series connection switching device as high-voltage pulse.
4. pulse generator as claimed in claim 1 is characterized in that being provided with in the driving pulse circuit [7] and opens drive circuit [3] and turn-off drive circuit [4].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97214012U CN2287353Y (en) | 1997-04-04 | 1997-04-04 | High voltage and high speed power pulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97214012U CN2287353Y (en) | 1997-04-04 | 1997-04-04 | High voltage and high speed power pulse generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2287353Y true CN2287353Y (en) | 1998-08-05 |
Family
ID=33931605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97214012U Expired - Fee Related CN2287353Y (en) | 1997-04-04 | 1997-04-04 | High voltage and high speed power pulse generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2287353Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355533A (en) * | 2015-11-24 | 2016-02-24 | 安图实验仪器(郑州)有限公司 | High-voltage pulse generator suitable for mass spectrometer |
| CN105958976A (en) * | 2016-06-08 | 2016-09-21 | 中国科学院合肥物质科学研究院 | Adjustable high-voltage pulse generator applied to mass spectrometer |
| CN109391150A (en) * | 2018-10-16 | 2019-02-26 | 西安霍威电源有限公司 | A kind of four tunnel of high power density output nanosecond rising edge square wave formula output module |
-
1997
- 1997-04-04 CN CN97214012U patent/CN2287353Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105355533A (en) * | 2015-11-24 | 2016-02-24 | 安图实验仪器(郑州)有限公司 | High-voltage pulse generator suitable for mass spectrometer |
| CN105958976A (en) * | 2016-06-08 | 2016-09-21 | 中国科学院合肥物质科学研究院 | Adjustable high-voltage pulse generator applied to mass spectrometer |
| CN109391150A (en) * | 2018-10-16 | 2019-02-26 | 西安霍威电源有限公司 | A kind of four tunnel of high power density output nanosecond rising edge square wave formula output module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |