Abstract
High voltage nanosecond pulse generator is needed to study pulsed discharge plasma. Based on the two-stage coaxial Blumlein transmission line and the series connection technology of solid-state switch, the formation principle of square wave of two coaxial Blumlein transmission line is analyzed through the wave propagation process, and the synchronous control of solid-state switch is introduced. The high-level suspension drive of solid-state switch is realized through self-powered drive, so as to generate 3 kV negative high-voltage nanosecond pulse. A prototype of high-voltage nanosecond pulse generator based on two-stage coaxial Blumlein transmission line was built and the related performance tests were carried out. The parameters of the pulse generator under 200 Ω matching load are: amplitude is adjustable within 0~−3 kV, pulse width is adjustable within 100 ns–300 ns, repetition rate is adjustable within 0–50 kHz, falling edge time of negative pulse is 13 ns.
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