An influence of parasitic parameters on electromagnetic disturbance emission in voltage converters

Ie. S. Zaitsev; Shahryar Shalileh

doi:10.3103/S0735272711120065

Authors

Ie. S. Zaitsev National Technical University of Ukraine "Kyiv Polytechnic Institute", Ukraine
Shahryar Shalileh National Technical University of Ukraine "Kyiv Polytechnic Institute", Ukraine

DOI:

https://doi.org/10.3103/S0735272711120065

Keywords:

electromagnetic compatibility, EMC, electromagnetic interferences, EMI, power converters, switch mode power supply, SPMS, buck converter, boost converter, polar-inverting converter, flyback converter, 2-transistor forward converter

Abstract

In this paper it is estimated an influence of parasitic parameters of elements in converters of different topologies on a spectral components of conducted electromagnetic interference. Scalability of obtained results allows to estimate expected levels of electromagnetic interferences (EMI) from considered converters types, and hence, develop more efficient interference-suppression filters (ISF) for switching-type power supplies (STPS) with less development cost. Results are obtained for frequency band of 0–30 MHz.

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