MV级近方波Marx发生器的设计

Design of MV level rectangle pulse Marx generator

分析了Marx发生器与正弦振荡回路组合直接输出方波脉冲的近方波Marx发生器理论,并设计了一个该类型的方波发生器装置。其中,Marx发生器由16个充电电压为100kV、容值为40nF的电容器组成,采用正负充电的S型超前触发回路,正弦振荡回路由5个与Marx发生器同类型的电容器和1个0.5μH的电感组成。通过Spice模拟,在负载为100Ω时,输出脉冲电压为1.1MV,脉宽约300ns。提出了利用Marx发生器触发LC回路的方法,以解决Marx与LC回路的同步触发问题,使输出电压能够有效叠加。

The paper analyzes the high voltage rectangle pulse generator with a Marx generator and a LC circuit in theory,and designs a pulse generator of this kind.The Marx generator is constituted of sixteen 100 kV,400 nF capacitors,with a pre-triggered S-type circuit.The LC circuit is made by five capacitors the same as that of the Marx generator and a inductor of 1.5 μH inductance.The simulation of Spice shows a 1.1 MV,300 ns,rectangle pulse produced by this pulse generator.The middle stage of the Marx generator is used to trigger the LC circuit in order to synchronize this two parts.