一种小型化双指数脉冲源的设计  

Design of miniature double-exponential pulse generator

作　　者：周星[1] 赵敏[1] 程二威[1] 杨清熙[1] 

机构地区：[1]军械工程学院,石家庄050003

出　　处：《强激光与粒子束》2014年第6期222-226,共5页High Power Laser and Particle Beams

基　　金：重点实验室基金重点项目(9140C870103120C87028);国家自然科学基金项目(50977091)

摘　　要：针对采用注入法进行电磁脉冲效应实验对高性能小型化电磁脉冲源的需求,设计了一种基于雪崩三极管开关的MARX结构的紧凑型脉冲发生电路。分析了雪崩管开关和脉冲发生电路的工作原理,给出了触发电路与主电路设计方法以及元件参数选取方法,并设计了十级单极性和双极性的脉冲发生电路,能产生前沿为ns级、峰值上kV的快沿双指数脉冲,并具有较高的稳定度以及高重复频率。For EMP effects experiments,a miniature Marx generator based on avalanche transistors is developed.The characteristics of avalanche transistor are analyzed and the principles of the pulse generator are studied.The design method of trigger circuit and pulse circuit is discussed,and the choice of device parameters is presented.A monopole and a dual polarity of 10-stage small-sized pulse generator are designed,which can yield double-exponential pulses with a rise time of several ns and a peak voltage of 1.8 kV,and the experimental results show that the output pulses have the virtue of high stability and high repetition rate.

关 键 词：快沿 双指数脉冲 高稳定度 高重复频率 雪崩三极管 

分 类 号：TM836[电气工程—高电压与绝缘技术]