直变换器输入滤波器的设计论文.pdf

文档介绍：2004 年 1 月电工技术学报 No1
第 19 卷第 1 期 TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY Jan. 2004
直/直变换器输入滤波器的设计
朱成花石健将严仰光
(南京航空航天大学自动化学院南京 210016)

摘要基于 MiddleBrook’s Extra Element Theorem,分析了输入滤波器与 DC/DC 变换器之间
的相互作用。给出输入滤波器的设计准则:既能限制谐振峰值和保证稳态滤波效果,同时不影响
变换器稳定性和抗扰能力,并给出单级式输入滤波器和多级式输入滤波器的具体设计方法。仿真
和实验表明,按该方法设计的输入滤波器,具有体积小、重量轻、损耗低、谐振峰值低及衰减速
率快等优点,在开关变换器场合具有重要应用价值。
关键词单级式输入滤波器多级式输入滤波器 DC/DC 变换器谐振峰值
中图分类号:TN713

Design of Input Filter for DC/DC Converter
Zhu Chenghua Shi Jianjiang Yan Yangguang
(Nanjing University of Aeronautics & Astronautics Nanjing 210016 China)
Abstract Based on the MiddleBrook’s Extra Element Theorem, it analyzes the interaction
between input filter and DC/DC converter. Design principles of input filter is proposed, which can limit
the filter resonant peaking and have good steady filtering effect, and won’t degrade the stability and the
performance against disturbance of DC/DC converter. Detailed design methods for single-section input
filter and multiple-section input filter are also presented. Simulation and experiment show that the input
filter designed according to the given methods has the merits such as small volume, light weight, low
loss, low resonant peaking and high attenuation speed, and has important application value on
switching conversions.
Keywords: Single-section input filter, mult