An experimental approach to investigate the generation and propagation of conducted EMI in converters

Author

Willcock, P.R. ; Ferreir, J.A. ; van Wyk, J.D.

Author_Institution

Ind. Electron. Res. Group, Rand Afrikaans Univ., Johannesburg, South Africa

Volume

2

fYear

1998

fDate

17-22 May 1998

Firstpage

1140

Abstract

An experimental approach is proposed for measuring the conducted noise in a circuit. It involves systematically tracing the generation and propagation of conducted EMI through the circuit. Central to this is a measuring probe compatible with LISN measurements, but having selective filter characteristics and attenuation to avoid over-loading of 50 Ω instrumentation inputs. The method is illustrated on a specially constructed, DC sourced, boost power converter

Keywords

DC-DC power convertors; electromagnetic interference; field strength measurement; probes; 50 ohm; EMI generation; EMI propagation; LISN measurements; boost power converter; conducted EMI; conducted noise measurement; instrumentation inputs; measuring probe; selective filter characteristics; Circuit noise; Electromagnetic interference; Electromagnetic measurements; Filters; Frequency measurement; Impedance; Instruments; Noise measurement; Probes; Resistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE

Conference_Location

Fukuoka

ISSN

0275-9306

Print_ISBN

0-7803-4489-8

Type

conf

DOI

10.1109/PESC.1998.703148

Filename

703148