Design, Modeling, and Improvement of Integrated EMI Filter With Flexible Multilayer Foils

Author

Wu, Xiaofeng ; Xu, Dehong ; Wen, Zhiwei ; Okuma, Yasuhiro ; Mino, Kazuaki

Author_Institution

Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China

Volume

26

Issue

5

fYear

2011

fDate

5/1/2011 12:00:00 AM

Firstpage

1344

Lastpage

1354

Abstract

Integrated electromagnetic interference (EMI) filter design method with flexible multilayer (FML) foils is presented. An analysis model for integrated EMI filter with FML foils, distributed electromagnetic component (DEMC) model, is proposed. The DEMC model is verified by the experiment. In addition, method to improve the high-frequency performance of integrated EMI filter is investigated. Prototype of integrated EMI filter with FML foils is made for 1 kW switching power supply. In comparison with the traditional discrete EMI filter, it can reduce total volume by 45%.

Keywords

electromagnetic interference; filters; distributed electromagnetic component model; flexible multilayer foils; integrated EMI filter; integrated electromagnetic interference filter design; power 1 kW; switching power supply; Capacitors; Copper; Electromagnetic interference; Equivalent circuits; Inductance; Low pass filters; Windings; Electromagnetic interference (EMI) filter; flexible multilayer (FML) foil; model; passive integration; power density;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2010.2077655

Filename

5580126