电气技术2025，Vol.26Issue(6)：52-57,6.
一种直流电源冲击电流抑制方法
A method for inrush current suppression in DC power supplies
周应旺 1李杨晔1
作者信息
- 1. 中国融通集团第六十研究所,南京 210016
- 折叠
摘要
Abstract
Due to the input capacitive load characteristics of unmanned aerial vehicle(UAV)onboard electronic equipment,a high inrush current is easily induced during DC power-on transients,leading to reduced stability of the power system and potential system-level electromagnetic compatibility(EMC)issues.To address the demand for suppressing transient inrush currents,this study proposes an innovative pre-charge circuit suppression method based on a systematic analysis of traditional surge suppression schemes.By constructing a controllable pre-charge circuit and optimizing the RC time constant design,precise matching between the charging current and time constant is achieved,significantly reducing implementation costs while ensuring system reliability.Engineering validation demonstrates that this method effectively suppresses the peak inrush current within the rated operational current range and maintains stable power bus voltage.The research provides an engineering-practical solution for ensuring power quality in onboard electronic systems,particularly suitable for UAV platforms with stringent requirements for power supply integrity and electromagnetic compatibility.关键词
无人机(UAV)/机载设备/冲击电流/冲击电流抑制/预充电路Key words
unmanned aerial vehicle(UAV)/onboard equipment/inrush current/inrush current suppression/pre-charge circuit引用本文复制引用
周应旺,李杨晔..一种直流电源冲击电流抑制方法[J].电气技术,2025,26(6):52-57,6.
