基于时序控制的固态开关串并联高压脉冲技术  

Series and Parallel High-voltage Pulse Technology for Solid-state Switches Based on Timing Control

作　　者：施阳杰 梁勖 林颖 方晓东 SHI Yangjie;LIANG Xu;LIN Ying;FANG Xiaodong(Anhui Institute of Optics and Fine Mechanics,Hefei Institute of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学院合肥物质科学研究院安徽光学精密机械研究所,合肥230031 [2]中国科学技术大学,合肥230026

出　　处：《电源学报》2024年第2期414-420,共7页Journal of Power Supply

基　　金：中国科学院青促会资助项目(2018481);中国科学院科研仪器设备研制项目(YJKYYQ20210007)。

摘　　要：针对生物医疗等高压陡脉冲应用需求,设计了基于固态开关串并联高压陡脉冲发生电路,并结合时序控制技术,提出一种脉冲陡化新方法;从理论上分析了脉冲陡化的关键、系统工作的过程以及设计要点。该方法能较好解决开关管增加后杂散参数、布线电感以及导线电感对开关速度的影响。以2 kV高压直流电源、110Ω的负载电阻进行实验,负载脉冲信号的上升沿约为50 ns,下降沿约为70 ns,输出电流幅值约18 A;最小脉宽信号的半高宽为100 ns,系统的最小分辨率为5 ns,可实现步进为5 ns脉宽的灵活调节,最大脉宽则与储能电容有关。In response to the high-voltage steep pulse application demands such as those in the biomedical industry,a series and parallel high-voltage steep pulse generator circuit based on solid-state switches is designed,and a novel pulse steepening method is proposed by combining the timing control technology.The key to pulse steepening,the system’s working process and the main points of design are analyzed theoretically.This method can better reduce the influences of stray parameters,wiring inductance and wire inductance on the switching speed after adding the switching tubes.An experiment was carried out with a 2 kV high-voltage DC power supply and a load resistance of 110Ω,and experimental results show that the rising edge of load pulse signal was 50 ns approximately,the falling edge was 70 ns approximately,and the output current amplitude was 18 A approximately.The half-height width of the minimum pulse width signal was 100 ns,and the system’s minimum resolution was 5 ns,which can realize a flexible adjustment of 5 ns pulse width step by step.The maximum pulse width was related to the energy storage capacitor.

关 键 词：宽高压脉冲 固态开关 串并联 时序控制 

分 类 号：TM832[电气工程—高电压与绝缘技术]