中山大学学报（自然科学版）Issue(1)：75-79,5.DOI:10.13471/j.cnki.acta.snus.2016.01.013
Buck 变换器输入／输出滤波相关问题研究
The input and output filtering of Buck converter
摘要
Abstract
The calculation of ripple current in input capacitor and the resonant voltage of output LC filter in high power buck converter is described.In regard to input capacitor,an accurate formula of calculat-ing ripple current is derived through simulation and deduction,and the maximum ripple current point is stated.Theoretical analysis of the resonant voltage problem occurring in experiments is conducted using certain parameters in a LC filter model,such as inductor equivalent resistance and capacitor ESR.Also a Matlab simulation is conducted to observe its output response characteristics and a damper is added to e-liminate resonance.This simple and effective method is verified by simulation and experiment.关键词
Buck电路/输入电容/LC滤波器/Matlab仿真/谐振电压Key words
Buck converter/input capacitor/LC filter/Matlab simulation/resonant voltage分类
信息技术与安全科学引用本文复制引用
陈鸣,李舒然,陈方林..Buck 变换器输入／输出滤波相关问题研究[J].中山大学学报（自然科学版）,2016,(1):75-79,5.基金项目
广东省科技计划资助项目（20153000042020545）；珠海市科技计划资助项目 （）
