Design and experiment research of integrated EMI filter based on flexible multi-layer foils

Author

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

Author_Institution

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

fYear

2010

fDate

21-24 June 2010

Firstpage

2891

Lastpage

2896

Abstract

A novel passive integration structure based on flexible multi-layer foils was proposed for EMI filter in switching-mode power supply. Common mode (CM) inductors and capacitors, differential mode (DM) inductors and capacitors were all integrated in a single unit. This passive integration applied flexible multi-layer foils (FML). Prototypes were implemented for an 1 kW switching power supply. The conductive EMI testing result was presented. The temperature rising and efficiency curves of the integrated EMI filter were also presented. In comparison with the discrete EMI filter, the prototype in this paper can reduce the volume by 32%.

Keywords

capacitor switching; electromagnetic interference; power filters; switched mode power supplies; common mode capacitors; common mode inductors; differential mode capacitors; differential mode inductors; flexible multi-layer foils; integrated EMI filter; passive integration; switching-mode power supply; Capacitors; Delta modulation; Electromagnetic interference; Inductors; Passive filters; Power filters; Power supplies; Prototypes; Temperature; Testing; EMI filter; FML foil; Passive integration; Power density;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (IPEC), 2010 International

Conference_Location

Sapporo

Print_ISBN

978-1-4244-5394-8

Type

conf

DOI

10.1109/IPEC.2010.5544556

Filename

5544556