Cascadable synchronous drive circuit for voltage controlled thyristor

Wendong Wang; Zhaoyang Wu; Ganping Wang; Bian Wu; Zhoubing Yang

doi:10.11884/HPLPB202537.240334

Journals >High Power Laser and Particle Beams >Volume 37 >Issue 2 >Page 025002 > Article

High Power Laser and Particle Beams
Vol. 37, Issue 2, 025002 (2025)

Cascadable synchronous drive circuit for voltage controlled thyristor

Wendong Wang, Zhaoyang Wu, Ganping Wang, Bian Wu, and Zhoubing Yang

Author Affiliations

National Key Laboratory of Science and Technology on Advanced Laser and High Power Microwave, Institute of Applied Electronics, CAEP, Mianyang 621900, China

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DOI: 10.11884/HPLPB202537.240334 Cite this Article

Wendong Wang, Zhaoyang Wu, Ganping Wang, Bian Wu, Zhoubing Yang. Cascadable synchronous drive circuit for voltage controlled thyristor[J]. High Power Laser and Particle Beams, 2025, 37(2): 025002 Copy Citation Text

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Abstract

Aiming at the pulse operating characteristics of voltage-controlled thyristors, a cascadable driving circuit is designed to realize the synchronous opening of multi-stage series-connected voltage-controlled thyristors. Firstly, the circuit topology and working principle is analysed. in which the coupled inductor is used to isolate the driver signal and transfer power to open the switch. Based on Blumlein PFN, an experimental test circuit is built, in which a 6-stage MOS-controlled thyristor is series connected to be the discharge switch. A quasi-square-wave pulse current with an amplitude of 1.958 kA is obtained on a 4 Ω resistor.

Keywords

driver circuit MOS-controlled thyristor quasi-square pulse series connection synchronization

$ V_{\mathrm{s}}=\dfrac{Z_2}{nZ_1(Z_2Y_1Y_2-1)}V_{\mathrm{p}} $

(1)

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$ \left\{

\begin{array}{l} Z_{1} = R_{p} + s L_{p} ， Z_{2} = R_{s}^{'} + s L_{s}^{'} \\ Y_{1} = Z_{2} (\frac{1}{Z_{1}} + \frac{1}{s L_{m}}) + 1 ， Y_{2} = s C_{s}^{'} + \frac{1}{n^{2} R_{L}} + \frac{1}{Z_{2}} \end{array}

\right.$

(2)

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Wendong Wang, Zhaoyang Wu, Ganping Wang, Bian Wu, Zhoubing Yang. Cascadable synchronous drive circuit for voltage controlled thyristor[J]. High Power Laser and Particle Beams, 2025, 37(2): 025002

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