强激光与粒子束, 2015, 27 (7): 075006, 网络出版: 2015-07-10  

模块化多路同步快脉冲触发源设计

Design of modularity fast pulse trigger with many channels in-phase
作者单位
中国工程物理研究院 流体物理研究所,脉冲功率科学与技术重点实验室, 四川 绵阳 621900
摘要
基于超快速高压大功率半导体开关、脉冲形成电路以及同心等间距传输的关键技术,提出一种模块化多路同步快脉冲触发源技术方案.设计出在负载阻抗为50 Ω时,可同步输出两种快脉冲触发信号:一种幅度大于20 V(4路)、脉冲前沿小于820 ps、脉冲宽度大于100 ns;另一种则是幅度大于100 V(4路)、前沿小于1.4 ns、脉宽大于100 ns;在外触发作用下,触发源系统抖动和脉冲输出同步分散性分别达到2 ns 和36.6 ps.电路结构上充分利用等间距电信号传输的原理,实现了快脉冲触发源模块化的设计.通过实验结果验证了所采用的设计原理及方法的可行性,给出了在外触发脉冲单次和重频(5 kHz)作用下该同步快脉冲触发源输出的实验结果.
Abstract
Based on the fast semiconductor switch with high voltage and high power,PFN and the technology of the concentric and sameness space transfer,a modularity fast pulse trigger with many channels in-phase was designed.The above pulse trigger with a load of 50 Ω can export two fast pulse trigger signals that is one signal with more than 20 V output voltage(four channels),less than 820 ps fall time,more than100 ns pulse width and another signal with more than 100 V output voltage(four channels),less than 1.4 ns fall time,more than100 ns pulse width,and with the exterior trigger,the jitter of the pulse trigger achieves 2 ns and the in-phase decentralization character of the pulse output achieves 36.6 ps.The experiment results of single exterior trigger and exterior trigger with 5 kHz repetitive frequency for the above modularity fast pulse trigger were given,and the experiment result validates the theory and method of the concentric and sameness space transfer.

李玺钦, 邓维军, 赵娟, 马成刚, 谢敏, 李洪涛, 栾崇彪. 模块化多路同步快脉冲触发源设计[J]. 强激光与粒子束, 2015, 27(7): 075006. Li Xiqin, Deng Weijun, Zhao Juan, Ma Chenggang, Xie Min, Li Hongtao, Luan Chongbiao. Design of modularity fast pulse trigger with many channels in-phase[J]. High Power Laser and Particle Beams, 2015, 27(7): 075006.

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