Development of a compact high-voltage pulser for hypervelocity microparticles injector

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This paper highlights the development of a high-voltage pulser that utilizes a zero-voltage-switching (ZVS) circuit and diode split flyback transformer to produce high-voltage DC pulses for a hypervelocity microparticle injector. In our circuit, the resonant inverter of the ZVS circuit is coupled to the diode split flyback transformer to generate a voltage of 10-40 kV. A power MOSFET (IXTQ 110N10P) is placed in the circuit to switch the variable DC input power supply to get a repetitive pulse output. The frequency of the high voltage output pulse can be adjusted from DC to 500 Hz, and the rise time of the voltage is about 0.28 ms. The high-voltage pulser has been connected to a microparticle injector to undergo testing, and the ejection of microparticles has been successfully observed. Detailed simulation and experimental results of the high-voltage pulser are presented.

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