Research on shutdown characteristics of thyristor reverse parallel diodes

Li Tao; Zhang Xingru; He Mengbing; Liu Jun; Feng Bingyang

doi:10.11884/HPLPB202133.200239

Volume 33 Issue 4

May 2021

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Li Tao, Zhang Xingru, He Mengbing, et al. Research on shutdown characteristics of thyristor reverse parallel diodes[J]. High Power Laser and Particle Beams, 2021, 33: 045002. doi: 10.11884/HPLPB202133.200239

Citation:

Li Tao, Zhang Xingru, He Mengbing, et al. Research on shutdown characteristics of thyristor reverse parallel diodes[J]. High Power Laser and Particle Beams, 2021, 33: 045002. doi: 10.11884/HPLPB202133.200239

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Research on shutdown characteristics of thyristor reverse parallel diodes

doi: 10.11884/HPLPB202133.200239

1.
Institute of Applied Electronics, CAEP, Mianyang 621900, China
2.
State Key Laboratory of Advanced Electromagnetic Engineering and New Technology, Huazhong University of Science and Technology, Wuhan 430074, China

Received Date: 2020-08-15
Rev Recd Date: 2021-02-18

Available Online: 2021-03-11

Publish Date: 2021-05-02

Abstract

Abstract

Thyristor has the advantages of good control characteristics, long life time, small size, low noise, etc., and it is an important device for high-power pulsed power supplies. However, when a thyristor is used under high voltage, high current, and repetitive frequency working conditions, the thyristor may not be turned off within a certain time, causing the pulse power supply to fail. To improve the working ability of the thyristor under repetitive frequency, this paper studies the turn-off process of the pulse power thyristor component. Based on the turn-off principle and experimental analysis of the thyristor, it is found that under the same conditions, increasing the current peak value has little effect on the reverse recovery characteristics of the thyristor, and the relationship is got between reverse recovery time, reverse recovery charge and di/dt of the thyristor. The reverse recovery current waveform of the thyristor is fitted according to the experimental data, and the current exponential function model is modified to better fit the reverse recovery current.
- pulse power switch,
- thyristor,
- reverse recovery,
- dynamic voltage equalization,
- static voltage equalization

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References(14)

References

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