Effects of switching frequency modulation on EMI performance of a converter using spread spectrum approach

M. Rahkala, T. Suntio, K. Kalliomäki

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

22 Citations (Scopus)

Abstract

A novel approach to simulate the EMI emissions comparable to EMC standards (CISPR 16/22) from the point of view of average (AV) and quasi-peak (QP) detection are presented. In addition an algorithm to convert the high-resolution FFT data to correspond with the defined measurement bandwidths is presented. A homodyne receiver approach was found to be useful for modeling the frequency selective process of EMI measurement equipment. The developed methods can be effectively used to study the effect of spread-spectrum technique to reduce EMI emissions. It was noticed that in order to optimize EMI in respect to AV detection a low frequency jittering is optimal. From a QP detection point of view it is favorable to apply a modulation frequency in the order of the same magnitude as the measurement of the bandwidth demanded.

Original languageEnglish
Title of host publicationAPEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition
PublisherIEEE
Pages93-99
Number of pages7
ISBN (Print)0-7803-7404-5
DOIs
Publication statusPublished - 2002
Externally publishedYes
Publication typeA4 Article in conference proceedings
Event17th Annual IEEE Applied Power Electronics Conference and Exposition - Dalas, TX, United States
Duration: 10 Mar 200214 Mar 2002

Conference

Conference17th Annual IEEE Applied Power Electronics Conference and Exposition
Country/TerritoryUnited States
CityDalas, TX
Period10/03/0214/03/02

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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