Tesla变压器型重复频率纳秒脉冲源的研制

Repetitive nanosecond pulse generator based on Tesla transformer

脉冲变压器与陡化开关结合的方式是产生纳秒脉冲较为成熟的方式,采用这种方式,研制了一种基于空芯Tesla变压器和陡化开关的紧凑高压重复频率纳秒脉冲源。该脉冲源主要由重复频率充电模块、Tesla变压器和陡化开关三部分组成,重复频率充电模块主要通过晶闸管的时序配合实现,Tesla变压器为脉冲源装置系统的核心及主升压模块,陡化开关是一个三电极自击穿型气体开关,用于将变压器次级输出的电压陡化成纳秒快脉冲波形,对该重复频率脉冲源以上各部分进行了详细的设计和测试。实验结果表明,该脉冲源可以在6kΩ的负载电阻上输出幅值100kV、上升沿约为30ns、最高频率可达500Hz的高压纳秒脉冲。

The combination of pulse transformer and sharpening switch is a relatively mature way to generate nanosecond pulse.In this way,a compact high voltage repetitive nanosecond pulse generator（HRNPG）based on Tesla transformer and spark switch is developed in this paper.The pulse generator mainly consists of a repetitive charging module,a Tesla transformer and a sharpening switch.Repetitive charging module is mainly implemented by temporal coordination of two thyristors,Tesla transformer is the core of the pulse generator and main booster module,sharpening switch is a three electrode self-breakdown type gas switch,which is used to sharpen the transformer secondary voltage into nanosecond pulse waveform.Each part of the HRNPG is presented and tested in detail.Applied to a 6kΩresistor,the HRNPG prototype is capable of generating apulse with 100 kV peak voltage and 30 ns rise time at the maximum repetition rate of 500 Hz.