CN202565195U - Device for generating high-voltage nanosecond pulses - Google Patents
Device for generating high-voltage nanosecond pulses Download PDFInfo
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- CN202565195U CN202565195U CN2012201593782U CN201220159378U CN202565195U CN 202565195 U CN202565195 U CN 202565195U CN 2012201593782 U CN2012201593782 U CN 2012201593782U CN 201220159378 U CN201220159378 U CN 201220159378U CN 202565195 U CN202565195 U CN 202565195U
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Abstract
The utility model discloses a device for generating high-voltage nanosecond pulses. The device comprises a power supply, an isolation transformer, a charging unit, a solid switch element, a photoelectric converter, a trigger unit, a pulse transformer, a primary capacitor, a secondary capacitor and a sharpening gap switch, wherein the power supply is connected with the charging unit through the isolation transformer and is used for providing power for the primary capacitor; the photoelectric converter is used for receiving optical signals from the outside and converting the optical signals into electric signals; the trigger unit is connected with the photoelectric converter and is used for generating electric trigger signals based on the electric signals so as to control the conduction of the solid switch element; the solid switch element is connected with the charging unit and the primary capacitor; the input end of the pulse transformer is connected with the primary capacitor, the output end of the pulse transformer is connected with the secondary capacitor and the pulse transformer is used for boosting the voltage; and the sharpening gap switch is used for carrying out a sharpening processing on the boosted voltage. The device disclosed by the utility model is simple in structure and stable in output high-voltage nanosecond pulses.
Description
Technical field
The utility model belongs to high voltage electrical engineering and electric apparatus technology and Pulse Power Techniques field, more specifically, relates to a kind of device that produces high-voltage nanosecond pulse.
Background technology
The voltage that the leading edge time of pulse voltage is meant electric pulse is raised to the required time of peak value from above freezing.In scientific experiment and special industry production, the high voltage pulse in fast forward position has very important application.As in pulse high current gas switch field, often adopt the triggering signal of the high electric field pulse in fast forward position as two electrode switch conductings; In the high-tension measurement field, the high-voltage square-wave in fast forward position is used for detecting the square-wave response of surge voltage voltage divider; In the ultra broadband source, the leading edge time of fast pulse has determined the radio-frequency component of transmission spectrum.
At present, the device that is usually used in producing high-voltage nanosecond pulse has charging cable type, multistage charging capacitor type, pulse transforming type.
Charging cable type high-voltage nanosecond pulse device is when producing hundred kilovolts of level high-voltage nanosecond pulses, and the insulation of device mesohigh output is difficult to handle, and is usually used in producing several kilovolts to tens kilovolts high-voltage pulse thus.Multistage charging capacitor type high-voltage nanosecond pulse device can be through regulating capacitor progression and single-stage charging voltage, regulating the amplitude of output high voltage pulse, but owing to use more capacitor and switch gap in the device, structure and all comparatively complicated synchronously.Pulse transforming type high-voltage nanosecond pulse device is usually used in producing higher pulse voltage output; But in this type of device of tradition; Pulsewidth, the power of pulse transformer output high voltage pulse have higher requirement, and whole device volume is big, weight is heavier thereby cause.
The utility model content
To the defective of prior art, the purpose of the utility model is to provide a kind of device that utilizes pulse transformer and solid switch element to produce high-voltage nanosecond pulse, is intended to solve the high-voltage nanosecond pulse problem of unstable of existing apparatus complex structure, output.
For realizing above-mentioned purpose, the utility model provides a kind of device that produces high-voltage nanosecond pulse, comprises power supply, isolating transformer, charhing unit, solid switch element, optical-electrical converter, trigger element, pulse transformer, former side's capacitor, secondary side's capacitor and steepness gap switch; Power supply links to each other with charhing unit through isolating transformer, is used for former side's capacitor is charged, and optical-electrical converter is used for from extraneous receiving optical signals; And converting light signal into the signal of telecommunication, trigger element links to each other with optical-electrical converter, is used for producing electric triggering signal according to the signal of telecommunication; Conducting with control solid switch element; The solid switch element links to each other with former side's capacitor with charhing unit, and the input of pulse transformer links to each other with former side's capacitor, and output links to each other with pair side's capacitor; Be used for booster tension; The steepness gap switch links to each other with secondary side's capacitor with pulse transformer, is used for that the voltage after the pulse transformer lifting is carried out steepness and handles, to obtain the nanosecond pulse high pressure.
Power supply is a high-voltage DC power supply, and the solid switch element is that pulse thyristor or insulated gate bipolar transistor parallel connection fly-wheel diode are formed, and pulse transformer is magnetic-core type pulse transformer or open core pulse transformer.
The capacitance of former side's capacitor and secondary side's capacitor meets the following conditions: C
x＞＞n
2Cy, wherein C
xBe the capacitance of former side's capacitor, C
yBe the capacitance of pair side's capacitor, n is the turn ratio of pulse transformer, and n＞1.
Above technical scheme through the utility model is conceived compared with prior art, the utlity model has following beneficial effect:
(1) the utility model utilizes the high voltage pulse of steepness gap switch pulse transformer generation to carry out steepness; Obtain the nanosecond pulse high pressure; The high voltage pulse amplitude that obtains on the pulse transformer pair side capacitor in this use has requirement, and pulsewidth, power are not had very high requirement.Owing to there is not the restriction of power; And utilize pulse transformer resonant charging principle; Compare with general highpowerpulse transformer, the structure of the pulse transformer that uses in this device is compact more, volume is smaller and more exquisite, cost is cheaper, has practical applications and is worth;
(2) pulse transformer and steepness gap switch are used, and be big or small through clearance distance and the institute's body air pressure of inflating of regulating main electrode in the steepness gap switch, and can regulate the amplitude and the leading edge time of voltage pulse output after the steepness, and it is satisfied the demand.Compared to utilizing magnetic switch paired pulses leading edge time to compress or reduce methods such as leading-edge pulse time through optimizing the loop stray parameter, the pulse steepness method that the utility model is taked is easy to operate and can reduce the complexity of device.
Description of drawings
Fig. 1 is the schematic representation of apparatus that the utility model produces high-voltage nanosecond pulse.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, the device that the present invention produces high-voltage nanosecond pulse comprises power supply 1, isolating transformer 2, charhing unit 3, solid switch element 4, optical-electrical converter 5, trigger element 6, pulse transformer 7, former side's capacitor C
1, secondary side's capacitor C
2With steepness gap switch 8.
Power supply 1 links to each other with charhing unit 3 through isolating transformer 2, is used for being connected former side's capacitor C of pulse transformer 7 former side's windings
1Charge.In this execution mode, power supply 1 is a high-voltage DC power supply, former side's capacitor C
1Be the high-pressure metal membrane capacitance.
From extraneous receiving optical signals 1. optical-electrical converter 5 is used for, and 1. converts light signal into the signal of telecommunication.
Solid switch element 4 and charhing unit 3 and former side's capacitor C
1Link to each other.In the present embodiment, solid switch element 4 is pulse IGCT or insulated gate bipolar transistor fly-wheel diode composition in parallel.
The input of pulse transformer 7 and former side's capacitor C
1Link to each other secondary side's capacitor C of output and pulse transformer 7 secondary side's windings
2Link to each other, be used for booster tension.In this execution mode, pulse transformer 7 is magnetic-core type pulse transformer or open core pulse transformer, secondary side's capacitor C
2Be high voltage ceramic capacitor.
The operation principle of the utility model is following:
Power supply 1 is through isolating transformer 2,3 couples of former side's capacitor C of charhing unit
1Charge, the effect of isolating transformer 2 is that this high-voltage nanosecond pulse generation device and power supply 1 are isolated, and the earth potential lifting damages power supply 1 in the power supply 1 place system thereby prevent nanosecond to cause when high pressure produces.
Fly-wheel diode has avoided power semiconductor to bear reverse voltage in the solid switch element 4, thereby plays a protective role.The conducting control module of solid switch element 4 is made up of optical-electrical converter 5 and trigger element 6; 1. optical-electrical converter 5 receives the extraneous light signal that provides during use, converts it to signal of telecommunication control trigger element 6 and produces the required triggering signal of solid switch element 4 conductings.This control method is simple and safe and reliable.
Former side's capacitor C
1After charging is accomplished, 4 conductings of control solid switch element, former side's capacitor C
1Instantaneous discharge, pulse transformer 7 former pair side windings produce magnetic coupling, secondary side's capacitor C
2On obtain high voltage pulse.In this execution mode, former side's capacitor C
1, secondary side's capacitor C
2Capacitance select and will meet the following conditions: C
x＞＞n
2Cy, wherein C
xBe former side's capacitor C
1Capacitance, C
yBe pair side capacitor C
2Capacitance, the turn ratio (n＞1) that n is pulse transformer.According to said method design the device parameter that this patent is mentioned, can satisfy the condition of pulse transformer resonant charging, secondary side's capacitor C under the perfect condition
2On the high-voltage pulse amplitude that obtains can be from nU
1Increase and reach 2nU
1, U wherein
1Be former side's capacitor C
1On charging voltage.Even there is leakage inductance in pulse transformer, secondary side's high-voltage pulse amplitude also will be obviously greater than nU
1Thus; The resonant charging parameter condition of utilizing this patent to propose; Can be so that the less pulse transformer of turn ratio be realized the secondary side's output voltage greater than former design turn ratio; Thereby in required high-voltage pulse amplitude one regularly, significantly reduce turn ratio, volume, weight and the complexity of pulse transformer arrangement, make device compact more and reduce cost.
Pair side capacitor C
2On the high voltage pulse that obtains do steepness through steepness gap switch 8 and handle, can obtain high-voltage nanosecond pulse 2..Through the clearance distance and the institute's body air pressure of inflate size of regulating main electrodes in the steepness gap switch 8, can regulate the self-breakdown voltage and the voltage landing time of steepness gap switch 8, nanosecond pulse high pressure amplitude and leading edge time 2. exported in adjusting thus.
Those skilled in the art will readily understand; The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (3)
1. device that produces high-voltage nanosecond pulse; Comprise power supply, isolating transformer, charhing unit, solid switch element, optical-electrical converter, trigger element, pulse transformer, former side's capacitor, secondary side's capacitor and steepness gap switch; It is characterized in that
Said power supply links to each other with said charhing unit through said isolating transformer, is used for said former side's capacitor is charged;
Said optical-electrical converter is used for from extraneous receiving optical signals, and converts said light signal into the signal of telecommunication;
Said trigger element links to each other with said optical-electrical converter, is used for producing electric triggering signal according to the said signal of telecommunication, to control the conducting of said solid switch element;
Said solid switch element links to each other with said former side's capacitor with said charhing unit;
The input of said pulse transformer links to each other with said former side's capacitor, and output links to each other with said pair side capacitor, is used for booster tension;
Said steepness gap switch links to each other with said pair side capacitor with said pulse transformer, is used for that the voltage after the said pulse transformer lifting is carried out steepness and handles, to obtain the nanosecond pulse high pressure.
2. device according to claim 1 is characterized in that,
Said power supply is a high-voltage DC power supply;
Said solid switch element is that pulse thyristor or insulated gate bipolar transistor parallel connection fly-wheel diode are formed;
Said pulse transformer is magnetic-core type pulse transformer or open core pulse transformer.
3. device according to claim 1 is characterized in that, the capacitance of said former side's capacitor and said pair side capacitor meets the following conditions:
, C wherein
xBe the capacitance of said former side's capacitor, C
yBe the capacitance of said pair side capacitor, n is the turn ratio of said pulse transformer, and n＞1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201593782U CN202565195U (en) | 2012-04-16 | 2012-04-16 | Device for generating high-voltage nanosecond pulses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201593782U CN202565195U (en) | 2012-04-16 | 2012-04-16 | Device for generating high-voltage nanosecond pulses |
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| Publication Number | Publication Date |
|---|---|
| CN202565195U true CN202565195U (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201593782U Expired - Fee Related CN202565195U (en) | 2012-04-16 | 2012-04-16 | Device for generating high-voltage nanosecond pulses |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023462A (en) * | 2012-12-13 | 2013-04-03 | 西安电子工程研究所 | Generator for generating exponential rise pulse current |
| CN103248264A (en) * | 2013-04-27 | 2013-08-14 | 西安交通大学 | Trigger for triggering Trigatron gas switch |
| CN105553322A (en) * | 2015-12-11 | 2016-05-04 | 浙江大维高新技术股份有限公司 | Power source device for plasma generation |
| CN107659200A (en) * | 2017-11-15 | 2018-02-02 | 西安交通大学 | Cascade connection type submicrosecond level high-voltage pulse generator for vacuum interrupter ageing |
| CN108696976A (en) * | 2018-08-14 | 2018-10-23 | 中国工程物理研究院流体物理研究所 | A kind of mobile X-ray unit of ferroelectric power supply driving |
| CN109490812A (en) * | 2018-12-05 | 2019-03-19 | 中国电力科学研究院有限公司 | Nanosecond the impulse voltage generator and detection system for detecting mutual inductor overvoltage |
| CN109698682A (en) * | 2018-12-24 | 2019-04-30 | 西北核技术研究所 | A kind of nanosecond forward position high voltage pulse generator |
| CN111712030A (en) * | 2020-05-15 | 2020-09-25 | 西安交通大学 | Capillary system for generating repeated-frequency high-heat-load plasma jet |
-
2012
- 2012-04-16 CN CN2012201593782U patent/CN202565195U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023462A (en) * | 2012-12-13 | 2013-04-03 | 西安电子工程研究所 | Generator for generating exponential rise pulse current |
| CN103023462B (en) * | 2012-12-13 | 2015-02-04 | 西安电子工程研究所 | Generator for generating exponential rise pulse current |
| CN103248264A (en) * | 2013-04-27 | 2013-08-14 | 西安交通大学 | Trigger for triggering Trigatron gas switch |
| CN103248264B (en) * | 2013-04-27 | 2015-08-05 | 西安交通大学 | A kind of trigger for triggering Trigatron gas switch |
| CN105553322A (en) * | 2015-12-11 | 2016-05-04 | 浙江大维高新技术股份有限公司 | Power source device for plasma generation |
| CN107659200A (en) * | 2017-11-15 | 2018-02-02 | 西安交通大学 | Cascade connection type submicrosecond level high-voltage pulse generator for vacuum interrupter ageing |
| CN108696976A (en) * | 2018-08-14 | 2018-10-23 | 中国工程物理研究院流体物理研究所 | A kind of mobile X-ray unit of ferroelectric power supply driving |
| CN109490812A (en) * | 2018-12-05 | 2019-03-19 | 中国电力科学研究院有限公司 | Nanosecond the impulse voltage generator and detection system for detecting mutual inductor overvoltage |
| CN109490812B (en) * | 2018-12-05 | 2023-08-18 | 中国电力科学研究院有限公司 | Nanosecond impulse voltage generator and detection system for detecting overvoltage of transformer |
| CN109698682A (en) * | 2018-12-24 | 2019-04-30 | 西北核技术研究所 | A kind of nanosecond forward position high voltage pulse generator |
| CN111712030A (en) * | 2020-05-15 | 2020-09-25 | 西安交通大学 | Capillary system for generating repeated-frequency high-heat-load plasma jet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20180416 |