Passive and Active Hybrid Integrated EMI Filters

Author

Biela, Juergen ; Wirthmueller, Alexander ; Waespe, Roman ; Heldwein, Marcello Lobo ; Raggl, Klaus ; Kolar, Johann W.

Author_Institution

Power Electron. Syst. Lab., ETH Zurich, Zurich

Volume

24

Issue

5

fYear

2009

fDate

5/1/2009 12:00:00 AM

Firstpage

1340

Lastpage

1349

Abstract

Two new planar integrated electromagnetic interference (EMI) filter structures that reduce the filter volume and that are based on standard printed circuit board (PCB) process technology are presented in this paper. First, a passive integrated EMI filter is presented, which results in a volume reduction of 24% compared to the discrete solution. However, this filter requires a planar ferrite core for the common-mode inductor. In order to eliminate the ferrite core and reduce the filter volume further (-40% versus discrete filter), a passive integrated structure is combined with an active EMI filtering circuit. The transfer function, the volume, and the losses of the discrete and the two integrated filters, which are designed for a 600 W power-factor-corrected converter, are compared.

Keywords

electromagnetic interference; filters; power convertors; power factor correction; printed circuits; transfer functions; active hybrid integrated EMI filters; common-mode inductor; passive hybrid integrated EMI filters; planar ferrite core; planar integrated electromagnetic interference filter; power 600 W; power-factor-corrected converter; printed circuit board; transfer function; Active filters; Capacitors; Circuits; Electromagnetic interference; Ferrites; Inductors; Information filtering; Information filters; Passive filters; Power electronics; Active filter; electromagnetic interference (EMI) filter; integrated passives; printed circuit board (PCB) inductor;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2009.2012404

Filename

4909406