Effects of Interactions Between Filter Parasitics and Power Interconnects on EMI Filter Performance

Author

Wang, Shuo ; Van Wyk, Jacobus Daniel ; Lee, Fred C.

Author_Institution

Virginia Tech, Blacksburg

Volume

54

Issue

6

fYear

2007

Firstpage

3344

Lastpage

3352

Abstract

This paper first analyzes the electrical parameters of differential-mode (DM) and common-mode (CM) propagation on power interconnects. The impedance-transformation effects of the power interconnects are then investigated. The interactions between the parasitic parameters in electromagnetic-interference (EMI) filters and the transformed impedances by the power interconnects are explored in detail. It is found that the interactions can degrade EMI-filter performance at high frequencies. Simulations and experiments are finally carried out to verify the analysis.

Keywords

electromagnetic interference; power filters; power system interconnection; EMI filter; common-mode propagation; differential-mode propagation; electrical parameters; electromagnetic interference filters; filter parasitics; impedance-transformation effects; power interconnects; Delta modulation; Electromagnetic interference; Hafnium; Impedance measurement; Integrated circuit interconnections; Jacobian matrices; Noise measurement; Particle separators; Power electronics; Power filters; Electromagnetic-interference (EMI) filter; equivalent parallel capacitance (EPC); equivalent series inductance (ESL); impedance transformation; power interconnects; transmission line;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2007.906126

Filename

4384360