Least coupling paths model for non-contact EMI base on lump element approach in switch mode converter

Author

Poon, N.K. ; Liu, C.P. ; Pong, M.H.

Author_Institution

Power Electron. Lab, Univ. of Hong Kong, China

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

577

Abstract

A simplified physical model of a switch mode power converter concludes a minimum of six equivalent physical coupling paths, least coupling paths (LCP), using lump elements approach through noncontact EMI coupling mechanism to the terminals of LISN. Simulation shows both inductive and capacitive coupling through each path may produce substantial EMI measured by a LISN. This physical model is good for understanding, diagnosis and emission estimation

Keywords

electromagnetic interference; equivalent circuits; lumped parameter networks; power convertors; printed circuits; switched mode power supplies; LISN terminals; capacitive coupling; equivalent physical coupling paths; inductive coupling; least coupling paths; lump elements approach; noncontact EMI coupling mechanism; switch mode power converter; Circuit noise; Circuit simulation; Computational modeling; Coupling circuits; Electromagnetic interference; Physics computing; Power electronics; Switches; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual

Conference_Location

Vancouver, BC

ISSN

0275-9306

Print_ISBN

0-7803-7067-8

Type

conf

DOI

10.1109/PESC.2001.954176

Filename

954176