Pulse width adjustable pulse generator with steepened falling edge

Cui Yancheng; Yang Hanwu; Gao Jingming; Li Song; Shi Chengyu; Wu Qilin

doi:10.11884/HPLPB201830.180147

Volume 30 Issue 10

Oct. 2018

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Cui Yancheng, Yang Hanwu, Gao Jingming, et al. Pulse width adjustable pulse generator with steepened falling edge[J]. High Power Laser and Particle Beams, 2018, 30: 105001. doi: 10.11884/HPLPB201830.180147

Citation:

Cui Yancheng, Yang Hanwu, Gao Jingming, et al. Pulse width adjustable pulse generator with steepened falling edge[J]. High Power Laser and Particle Beams, 2018, 30: 105001. doi: 10.11884/HPLPB201830.180147

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Pulse width adjustable pulse generator with steepened falling edge

doi: 10.11884/HPLPB201830.180147

College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China

Received Date: 2018-05-22
Rev Recd Date: 2018-08-01
Publish Date: 2018-10-15

Abstract

Abstract

The magnetic switch is used widely in the field of pulsed power technology due to its special saturation conduction mechanism, and it can be used as a pry off switch to steepen the falling edge. A high-voltage pulse quasi square wave with a certain flat top can be obtained on load based on the voltage clamping effect of metal-oxide varistor, which enables the adjustment of the pulse width by changing the volt-second integration of the magnetic switch. This paper presents a high voltage pulse generator with adjustable pulse width. With the use of varistor to generate high-voltage pulse quasi-square wave, and the magnetic switch as a pry off switch to steep the falling edge, by changing the magnetic switch reset current to control the reset depth of magnetic switch, it achieves adjustable pulse width. This paper presents theoretical analysis as well as simulation research and the preliminary experimental research based on the simulation result. In the preliminary experiment, the falling edge of the voltage waveform obtained on load is less than 30 ns and the pulse width modulation range is about 30%.
- pulse generator,
- magnetic switch,
- adjustable pulse width,
- pry-off switch,
- metal-oxide varistor

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References(18)

References

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