基于Pspice仿真的高频直流变换器的传导EMI噪声关键技术研究  

The Key-Technology Research on Conducted EMI Noise of High Frequency DC-DC Converter Based on Pspice Simulation

作　　者：刘勇[1] 赵阳[1] 张宇环[1] 颜伟[1] 窦爱玉[1] 郭青龙[1] 

机构地区：[1]南京师范大学电气与自动化工程学院,江苏南京210042

出　　处：《南京师范大学学报（工程技术版）》2013年第1期1-6,共6页Journal of Nanjing Normal University(Engineering and Technology Edition)

基　　金：江苏省自然科学基金(BK2011789);江苏省教育厅高校科研成果产业化推进项目(JHB2011-20);江苏省普通高校研究生科研创新计划项目(CXZZ12_0404;CXLX12_0411)

摘　　要：对高频直流变换器的直流传导EMI噪声进行了理论与仿真分析,研究了DC_LISN的电路结构,根据其理论模型建立了对应的仿真模型及其噪声提取模型;此外,根据不同无源器件的高频模型,建立了Boost、Buck变换器的高频电路仿真模型,运用Pspice软件对比分析了高频寄生参数的存在对于高频直流变换器的直流传导EMI噪声的影响,仿真结果证明了分析方法的有效性.The theoretical and simulation analysis of DC conducted EM1 noise of high-frequency DC-DC converter are made in the paper, and the circuit structure of DC_LISN is studied. Based on its theoretical model, the simulation model and noise extraction model are established. Besides, in this paper, the high-frequency models of different passive components are analyzed and proposed, and the high-frequency circuit simulation models of Boost and Buck converter are established. By application of Pspice software, the influence of the existence of high-frequency parasitic parameters on the DC conducted EMI noise is contrastively analyzed. The simulation result proves the effectiveness of analysis methods proposed in this paper.

关 键 词：高频直流变换器 DC_LISN 高频模型 PSPICE仿真 直流传导EMI 

分 类 号：TM15[电气工程—电工理论与新技术]