强激光与粒子束2025，Vol.37Issue(3)：42-49,8.DOI:10.11884/HPLPB202537.240253
P型开关截尾自触发方波脉冲叠加器
Self-triggering square-wave pulse adder with P-channel switches
摘要
Abstract
This paper proposes a square wave pulse adder with truncation function based on the self-triggering technology.The N-type switch and the P-type switch are connected in series to form a special half-bridge structure,which only needs to provide an isolated bipolar signal to control the first-stage charging and discharging switches.All other switches are turned on and off step by step to generate high-voltage square wave pulses.This technology not only greatly simplifies the driving circuit of the pulse adder,but also realizes the truncation function to generate quasi-square wave pulses with fast front and back edges.By using the automatic conduction characteristics of the depleted N-type switch,the self-charging without control is realized,and the insulation level of the drive circuit is significantly improved.A 9-stage power supply prototype is built for experimental verification,and the the experimental results show that a stable repetitive positive square wave pulse is generated on a 10 kΩ resistive load.The voltage amplitude is adjustable from 2.3 kV to 3.6 kV,the pulse width is adjustable from 1 μs to 10 μs,and the frequency is adjustable from 0 kHz to 1 kHz.The front and rear edges are both about 100 ns,and accelerate with the increase of operating voltage.The waveform under 10 kΩ and 3 nF resistance-capacitance series load is still a good square wave pulse,and the front and rear edges of the pulse do not slow down significantly with the resistance load.The compact structure of the pulse adder can help to miniaturize solid-state pulse generators.关键词
自触发驱动/脉冲叠加器/自取电/脉冲电源Key words
self-triggering driver/pulse adder/self-powered/pulse generator分类
动力与电气工程引用本文复制引用
李孜,吴路生,饶俊峰,姜松..P型开关截尾自触发方波脉冲叠加器[J].强激光与粒子束,2025,37(3):42-49,8.基金项目
国家自然科学基金项目(12205192) （12205192）
姑苏青年领军人才项目(ZXL2023210) （ZXL2023210）
