强激光与粒子束2012，Vol.24Issue(3)：673-677,5.DOI:10.3788/HPLPB20122403.0673
150kV全固态高压脉冲发生器设计
Design of 150 kV all-solid-state high voltage pulsed power generator
摘要
Abstract
The paper presents a design of all-solid-state pulsed power generator based on Marx generator with MOSFET semiconductor switch devices. Charging resistance is replaced by fast recovery diode in the circuit, which reduces power loss in charging process. Drive circuit is integrated in and gets power supply from main circuit. Optical fiber is used to deliver the drive signal so as to protect it from the interference of discharging. A clockwise/counter-clockwise ring-shaped compact configuration is applied, which reduces the loop inductance, and makes the generator modularized and compact. The proposed generator is com-posed of 180 Marx unites in series, each of which is charged at a low voltage of 900 V, and generates a fast output pulse of voltage 150 kV, rise time less than 500 ns and duration adjustable between 1 and 5 Ωs. Some experimental results of the pulsed power generator are listed, with a load of 50 kΩ resistance and 5 pF capacitance in parallel. Through comparison and analysis, some factors affecting the rise time of output pulses are summarized, including loop inductance, drive voltage of MOSFET and distributed capacitance of main circuit. Approaches for pulse rise time improvement are also discussed.关键词
Marx发生器/全固态开关/金属氧化层半导体场效应管/顺/逆时针方向环形分布的紧凑型结构/分布电容Key words
Marx generator/all-solid-state switches/MOSFET/clockwise/counter-clockwise ring-shaped compact configuration/distributed capacitance分类
信息技术与安全科学引用本文复制引用
雷宇,邱剑,刘克富..150kV全固态高压脉冲发生器设计[J].强激光与粒子束,2012,24(3):673-677,5.基金项目
国家自然科学基金项目(50837004) （50837004）
