Title :
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
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;
Conference_Titel :
Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE
Conference_Location :
Fukuoka
Print_ISBN :
0-7803-4489-8
DOI :
10.1109/PESC.1998.703148
