多级谐振充电的Marx脉冲源研究

doi:10.16180/j.cnki.issn1007-7820.2024.01.002

Abstract

Abstract:

Marx generator is a classic pulse power generator. In order to better meet the practical needs of high voltage, bipolar and high efficiency, a multi-stage resonant charging Marx pulse generator is proposed, which uses a series resonant charging power supply and a series core magnetic ring transformer to charge the Marx pulse generator in groups. The Marx pulse generator with multi-stage resonant charging of two symmetrical structures is built and its performance is verified, including the unipolar generator and the bipolar pulse generator with variable polarity. The circuit consists of a group of 3-way 8-stage Marx with positive polarity and a group of 3-way 8-stage Marx with negative polarity, totaling 48 stages. The experimental results show that the unipolar Marx generator with variable polarity can generate positive or negative voltage pulses of 30 kV, and the bipolar generator can output ± 10 kV voltage pulses to no-load and 50 kΩ resistive load. Through the signal control of Field Program Gate Array(FPGA), the repetition frequency can be adjusted within the range of 1 Hz~1 kHz, the pulse width can be adjusted within the range of 1~200 ms, and the front and back edges of the pulse are within 50 ns. The relaxation time between positive and negative pulses is 0.2~200.0 μs.

Key words: pulse power technology, Marx generator, bipolar pulse, resonance charging, full bridge series resonance, magnetic ring transformer, pulse power supply, FPGA

CLC Number:

TN782

FU Yizhao,LI Zi. Marx Pulse Source with Multistage Resonant Charging[J].Electronic Science and Technology, 2024, 37(1): 9-16.

Figures/Tables 11

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References 18

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Marx Pulse Source with Multistage Resonant Charging

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