Repetitive Frequency Marx Generator Based on Magnetic Switches and Its Application in Dielectric Barrier Discharge

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Abstract
In this paper, a novel repetitive frequency steep front pulse generator is proposed. Based on the topology of a three-stage magnetic pulse compressor followed by a three-stage Marx generator, in which conventional spark gaps are replaced by magnetic switches, the generator realizes a repetitive frequency of 1 kHz, an output pulse magnitude of 17 kV, and a rise time of 80 ns. Dielectric barrier discharge driven by it has also been conducted; voltage and current waveforms along with a gas discharge image have been presented. Calculation of air gap voltage and barrier voltage, and discharge current and displacement current shows that two discharges of opposite polarity occur in one voltage pulse and the secondary discharge consumes much lower energy than the first one.

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