Parametric Characterization of Differential-Mode Transmission Line EMI Filter

Author

Liang, Yan ; van Wyk, J.D. ; Ngo, Khai

Author_Institution

Center for Power Electronics Systems, The Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061 USA

fYear

2007

fDate

Feb. 25 2007-March 1 2007

Firstpage

1217

Lastpage

1223

Abstract

Frequency-selective transmission line (TL) EMI filter can be used to attenuate the high frequency (HF) noise in power electronics systems. In order to understand the attenuation mechanism and to facilitate the design of the TL EMI filter, analysis of the differential mode (DM) TL EMI filter is given in this paper based on multi-conductor lossy transmission line model and finite element simulation using Ansoft 2D Extractor. The dependences of filter performance on dimensions and material properties are shown. Relative permittivity and thickness of the dielectric layer, conductivity and relative permeability of nickel layer are the dominating influencing factors on the filter performance.

Keywords

Attenuation; Delta modulation; Electromagnetic interference; Filters; Frequency; Hafnium; Power electronics; Power transmission lines; Propagation losses; Transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference, APEC 2007 - Twenty Second Annual IEEE

Conference_Location

Anaheim, CA, USA

ISSN

1048-2334

Print_ISBN

1-4244-0713-3

Type

conf

DOI

10.1109/APEX.2007.357670

Filename

4195873