强激光与粒子束2025，Vol.37Issue(7)：41-47,7.DOI:10.11884/HPLPB202537.240435
开关线性混合电源设计
Design of switched-linear power supply
摘要
Abstract
With the in-depth study of particle accelerator physics experiments,the requirements for higher beam quality have gradually increased.To obtain a magnetic field environment with extremely high stability and extremely low noise,a high-precision DC excitation power supply combining switching mode and linear mode was analyzed and designed.The front-end switching power supply provides a stable power source,and the back-end linear power supply is connected in series to control the linear amplification of the current for output.Based on the control loop of power supply current and tube voltage drop,the stability of the output current has been further improved through temperature compensation measures for key components.Through the modular design of the back-end linear power supply,the volume of the power supply has been reduced and the convenience of operation and maintenance has been improved.The measured results show that the long-term current stability for 8 h reaches 1.3×10-6,and the noise is extremely low.关键词
加速器电源/极高稳定度/线性放大/温度补偿/模块化Key words
accelerator power supply/extremely high stability/linear amplification/temperature compensation/modularization分类
能源科技引用本文复制引用
周宁,詹荣霖,燕宏斌,张华剑,李继强,王晓俊,高大庆,郭宏亮,谭玉莲..开关线性混合电源设计[J].强激光与粒子束,2025,37(7):41-47,7.基金项目
国家自然科学基金青年科学基金项目(E411571GJ0) （E411571GJ0）
