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This paper presents a design, simulation, and analysis of an advanced negative high voltage nanosecond pulse generator (NSPG) utilizing a boost-based multi-stage Marx generator with solid-state SiC-MOSFET switches. The proposed topology offers significant advantages over conventional spark-gap-based Marx generators, including higher pulse repetition frequencies, reduced size, and improved efficiency. By integrating series-connected SiC MOSFETs and an interconnected boost stage, the NSPG can generate adjustable high-voltage pulses with minimized rise and fall times. MATLAB-based simulation results demonstrate the NSPG's ability to produce pulses in the range of −25 kV to −28 kV at a pulse repetition frequency (PRF) of 20 kHz. Additionally, the results highlight important parameters such as output pulse duration, rise and fall time along with its synchronization with switching signal. This advanced NSPG system has potential applications in various fields, such as microwave generation, plasma research, and industrial processes.

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Analysis and Simulation of a Boost-Marx Based Negative High Voltage Pulse Generator

  • 会议论文

  • 发表日期：

    2025年

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  • Aashish Ranjan,
  • Anand Abhishek

摘要

This paper presents a design, simulation, and analysis of an advanced negative high voltage nanosecond pulse generator (NSPG) utilizing a boost-based multi-stage Marx generator with solid-state SiC-MOSFET switches. The proposed topology offers significant advantages over conventional spark-gap-based Marx generators, including higher pulse repetition frequencies, reduced size, and improved efficiency. By integrating series-connected SiC MOSFETs and an interconnected boost stage, the NSPG can generate adjustable high-voltage pulses with minimized rise and fall times. MATLAB-based simulation results demonstrate the NSPG's ability to produce pulses in the range of −25 kV to −28 kV at a pulse repetition frequency (PRF) of 20 kHz. Additionally, the results highlight important parameters such as output pulse duration, rise and fall time along with its synchronization with switching signal. This advanced NSPG system has potential applications in various fields, such as microwave generation, plasma research, and industrial processes.