电器与能效管理技术Issue(1)：58-65,8.DOI:10.16628/j.cnki.2095-8188.2026.01.008
一种具有过压保护功能的高压启动供电电路
A High-Voltage Start-Up Power Supply Circuit with Overvoltage Protection
邓棵 1赵钢1
作者信息
- 1. 中国电子科技集团公司第二十四研究所,重庆 400060
- 折叠
摘要
Abstract
To address the limitations of conventional start-up power supply solutions(such as shunt-regulated circuits and linear-regulated circuits)in high-voltage switching power supply systems,which are plagued by low efficiency and sustained high-voltage stress on power devices,a novel high-voltage start-up power supply circuit is proposed by sorting out existing technical bottlenecks and comparing the advantages and disadvantages of mainstream solutions in the field.Enhanced efficiency and reliability are achieved by adopting three key improvements in the proposed circuit:a two-stage power supply mechanism combining a linear regulator and an auxiliary power supply,dynamic hysteresis control based on an operational amplifier and a voltage divider network,and an integrated overvoltage protection unit.A prototype circuit is fabricated based on SIMetrix simulation data.Experimental results indicate that the efficiency of the prototype circuit is increased from 30％～40％of the conventional scheme to 72％.The rationality and feasibility of the proposed scheme are verified by both simulation validation and prototype circuit tests.关键词
高压开关电源系统/效率/高压应力/线性稳压/动态滞环/启动供电Key words
high-voltage switching power supply system/efficiency/high-voltage stress/linear regulator/dynamic hysteresis/start-up power supply分类
信息技术与安全科学引用本文复制引用
邓棵,赵钢..一种具有过压保护功能的高压启动供电电路[J].电器与能效管理技术,2026,(1):58-65,8.
