High voltage nanosecond pulse generator based on pseudospark switch and diode opening switch

With the development of technology, low-temperature plasma plays an increasingly important role in industrial applications. The industrial application of low-temperature plasma has the following requirements for plasma, high electron energy, low macroscopic temperature, and uniformity. Low-temperature plasma driven by nanosecond pulses reflects more significant advantages in these aspects compared to direct current plasma and alternating current plasma. In this paper, a simple topology is proposed, which is based on the pseudospark switch and the diode opening switch. A pulse generator is developed, which can eventually output pulses with an amplitude of 106 kV, a rise time of 15.5 ns, a pulse width of 46 ns, and a maximum repetition rate of 1 kHz on a 260 omega resistive load. The pulse generator can successfully drive needle-plate discharge plasma in ambient air. It has excellent parameters, stability, compactness, and a long lifetime. The proposed topology may be helpful for nanosecond pulse generators with amplitude ranging from tens to hundreds of kilovolts, which could be widely used in industry.

Automated summary

With the advancement of technology, low-temperature plasma has become increasingly important in industrial applications. The industrial application of low-temperature plasma requires high electron energy, low macroscopic temperature, and uniformity. Compared to direct current plasma and alternating current plasma, low-temperature plasma driven by nanosecond pulses has significant advantages in these aspects. This paper proposes a simple topology based on the pseudospark switch and the diode opening switch. A pulse generator is developed, which can output pulses with an amplitude of 106 kV, a rise time of 15.5 ns, a pulse width of 46 ns, and a maximum repetition rate of 1 kHz on a 260 omega resistive load. The proposed topology and pulse generator have potential applications in various industries.