| 开关电源EMI滤波器的设计 |
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| 引用本文： | 王金霞,杨庆江,王金凤. 开关电源EMI滤波器的设计[J]. 煤炭技术, 2009, 28(5) |
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| 作者姓名： | 王金霞 杨庆江 王金凤 |
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| 作者单位： | 1. 黑龙江科技学院,电信学院,哈尔滨,150027
2. 太平洋线路板公司,辽宁,大连,116001 |
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| 摘 要： | 文章首先分析了开关电源电磁干扰问题产生的原因及种类,建立开关电源EMI滤波器的共模和差模等效模型以分析噪声的传播方式,结合滤波器所需对应的开关电源工作频率为基础来设计滤波器,无需复杂的计算,对不同工作频率的开关电源有较强的针对性。最后通过实例验证了此设计方法的可行性。
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| 关 键 词： | 滤波器 开关电源 噪声 仿真 电磁干扰 |
Designing EMI Filter and Simulation |
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| WANG Jin-xia,YANG Qing-jiang,WANG Jin-feng. Designing EMI Filter and Simulation[J]. Coal Technology, 2009, 28(5) |
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| Authors: | WANG Jin-xia YANG Qing-jiang WANG Jin-feng |
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| Affiliation: | 1.College of Electric and Information;Heilongjiang Institute of Science and Technology;Harbin 150027;China;2.Pacific Circuit Company;Dalian 116001;China |
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| Abstract: | In this paper first of all the category and causes of the switching mode power supp ly EMI are analyzed.Second build the equivalent models for common mode and di fferential mode of switching power supply EMI fi lter,this procedure is based on the analysis of noise and the frequency of SMPS.This procedure needs no complex computing and fits SMPS with certain frequency well.Lastly,the feasibility of this design method is verified by simulation. |
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| Keywords: | filter SMPS noise simulation EMI |
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