摘要
为满足电子设备在高重频、快前沿脉冲下的电磁损伤机理与工作防护技术研究的需要,本文利用漂移阶跃恢复二极管(DSRD)开断速度快、重复频率高等优点,基于正反向电流泵浦原理设计了一种新型双回路驱动的纳秒快前沿重复频率脉冲发生电路。首先计算了双回路驱动脉冲发生电路的主要元件参数,建立了DSRD的PSpice等效模型,通过仿真分析了脉冲电路输入电压、触发时间、负载电阻、DSRD寄生电容等对输出脉冲前沿、脉宽(半峰宽)、幅值的影响规律,并通过电路参数优化得到了预期的脉冲输出指标,所设计的双回路驱动脉冲发生电路有效提升了储能电感充放电效率,提高了脉冲源工作频率。根据所设计的电路参数,最终研制出一台输出前沿1.87 ns、脉宽8.3 ns、幅值1 kV、工作频率3 MHz的纳秒快前沿高重复频率脉冲电源,为研究脉冲功率环境下的电磁效应和防护提供了实验手段和技术支持。
In order to meet the needs of research on the electromagnetic damage mechanism and work protection technology of electronic equipment under high repetition frequency and fast rise time pulse,a novel dual-loop driven repetition frequency generating circuit with nanosecond rise time is designed.It bases on the principle of forward and reverse current pumping and uses the advantages of drift step recovery diode(DSRD)with fast breaking speed and high repetition frequency.Firstly,the main component parameters of the dual-loop driven pulse generating circuit are calculated,and an equivalent simulation model of the DSRD is established by PSpice.Influences of input voltage,trigger time,load,DSRD parasitic capacitance and other circuit parameters on the output pulse risetime,pulse width(half-peak width)and amplitude are analyzed,and the expected pulse output index is obtained by optimizing the circuit parameters.The designed dual-loop driven pulse generating circuit effectively improves the charging and discharging efficiency of the energy storage inductor and the working frequency of the pulse source.According to the circuit parameters designed,a nanosecond fast rise time and high repetition frequency pulse source with 1.87 ns rise time,8.3 ns pulse width,1 kV amplitude,and 3 MHz repetition frequency is finally developed,which provides an important experimental means and technical support for the study of electromagnetic effect and protection under the pulsed power environment.
作者
黄寅
孟永鹏
黄彦钦
王亚杰
高新宇
成永红
HUANG Yin;MENG Yongpeng;HUANG Yanqin;WANG Yajie;GAO Xinyu;CHENG Yonghong(State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an 710049, China;Xi’an Electronic Engineering Research Institute, Xi’an 710100, China)
出处
《西安交通大学学报》
EI
CAS
CSCD
北大核心
2021年第10期114-122,共9页
Journal of Xi'an Jiaotong University
基金
装备发展部预先研究项目
装备发展部一般基金项目。
关键词
快前沿
高重频
脉冲源
漂移阶跃恢复二极管
fast risetime
high repetition frequency
pulse source
drift step recovery diode
