EMI滤波器网络最佳工作状态设计及其平面化实现

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Abstract Electromagnetic interference (EMI) filters play an important role in restraining conducted EMI. Affected by the impedance of the noise source and the load, the performance of the EMI filter is often poor. In order to eliminate the adverse effect, the design method of an EMI filter network with the impedance mismatching network is proposed in this paper. According to the value of the impedance of the noise source and the load, the impedance mismatching network will be classified into two kinds: the L-type network and the C-type network. By selecting the appropriate parameters of the impedance mismatching network, the noise source impedance and the input impedance of the EMI filter will meet some proportion, and the load impedance and the output impedance of the EMI filter will also meet some proportion. Using the characteristics that different impedance proportions have different values of reflection loss, the optimized running state of the EMI filter will be achieved. Besides the insertion loss, the reflection loss is also supplied by the EMI filter network and the performance of the EMI filter will be further improved. In order to reduce the volume of the EMI filter, the design method of the EMI filter network is applied to the planar EMI filter. Finally, an experiment is taken to verify the effectiveness and feasibility of the EMI filter network.

Key words： Reflection loss insertion loss impedance mismatching network EMI filter

Received: 31 March 2015 Published: 20 April 2016

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TM133

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	Song Zheng
	Wang Shishan

Cite this article:

Song Zheng,Wang Shishan. The Design of the Optimized Running State of EMI Filter Network and Its Planar Realization[J]. Transactions of China Electrotechnical Society, 2016, 31(7): 179-187.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I7/179

[1] 马伟明,张磊,孟进.独立电力系统及其电力电子装置的电磁兼容[M].北京:科学出版社,2007.
[2] 钱照明,程肇基.电力电子系统电磁兼容设计基础及干扰抑制技术[M].杭州:浙江大学出版社,2000.
[3] Ozenbaugh R L.EMI Filter Design[M].California:Marcel Dekker Inc.,2001.
[4] Wang Shishan,Xu Chenchen.Design theory and implementation of a planar EMI filter based on annular integrated inductor-capacitor unit[J].IEEE Transactions on Power Electronics,2013,28(3):1167-1175.
[5] 王世山,朱叶,周小林,等.圆环线匝构成的平面共模EMI滤波器的特性研究[J].电工技术学报,2011,26(11):68-73.
Wang Shishan,Zhu Ye,Zhou Xiaolin,et al.Characteristics research for planar common mode EMI filter based on toroidal LC coil[J].Transactions of China Electrochemical Society,2011,26(11):68-73.
[6] 姜保军,孙力,赵克.EMI滤波器阻抗失配与EMI信号的有效抑制[J].电机与控制学报,2006,10(3):252-255.
Jiang Baojun,Sun Li,Zhao Ke.EMI filter mismatching impedance and EMI suppression[J].Electric machines and control,2006,10(3):252-255.
[7] Luo Fang,Dong Dong,Boroyevich D,et al.Improving high-frequency performance of an input common mode EMI filter using an impedance mismatching filter[J].IEEE Transactions on Power Electronics,2014,29(10):5111-5115.
[8] Luo Fang,Boroyevich D,Mattavelli P.Improving EMI filter design with in circuit impedance mismatching[C]//Applied Power Electronics Conference and Exposition,Twenty-Seventh Annual IEEE,Orlando,FL,2012:1652-1658.
[9] 刘超,张近民,王立欣.阻抗失配条件下信号EMI滤波器的设计[J].电子测量技术,2009,32(7):9-13.
Liu Chao,Zhang Jinmin,Wang Lixin.Design of signal EMI filter with mismatching impedance[J].Electric Measurement Technology,2009,32(7):9-13.
[10]王世山,朱叶,石磊磊.基于环形感容集成结构单元的平面EMI滤波器设计理论及实施[J].电工技术学报,2013,28(1):126-135.
Wang Shishan,Zhu Ye,Shi Leilei.Design theory and implementation of planar EMI filter based on annular integrated inductor-capacitor unit[J].Transactions of China Electrotechnical Society,2013,28(1):126-135.
[11]Wu Xiaofeng,Xu Dehong,Wen Zhiwei,et al.Design,modeling,and improvement of integrated EMI filter with flexible multilayer foils[J].IEEE Transactions on Power Electronics,2011,26(5):1344-1354.
[12]Wang S.Characterization and cancellation of high-frequency parasitic for EMI filters and noise separators in power electronics applications[D].Blacksburg:Virginia Tech University,2003.
[13]陈恒林,陈玮,冯利民,等.通过改变噪声源阻抗抑制高频共模噪声[J].电力电子技术,2006,40(6):124-125.
Chen Henglin,Chen Wei,Feng Limin,et al.High frequency common mode EMI noise suppression for switching converters by impedance control[J].Power Electronics,2006,40(6):124-125.
[14]Wu Xiaofeng,Wen Zhiwei,Xu Dehong,et al.Design and experiment research of integrated EMI filter based on flexible multi-layer foils[C]//International Power Electronics Conference,Sapporo,2010:2891-2896.
[15]Chen Rengang.Integrated EMI filters for switch mode power supplies[D].Blacksburg:Virginia Polytechnic Institute and State University,2004.
[16]Wang Shuo,Lee F C,Wyk J D.A study of integration of parasitic cancellation techniques for EMI filter design with discrete components[J].IEEE Transactions on Power Electronics,2008,23(6):3094-3102.
[17]Huang Huifen,Deng Liangyong,Hu Binjie.Techniques for improving the high-frequency performance of the planar CM EMI filter[J].IEEE Transactions on Electromagnetic Compatibility,2013,55(5):901-908.