A comparative investigation of several frequency modulation profiles for programmed switching controllers targeted conducted-noise reduction in DC-DC converters

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Abstract

This paper investigates the effect of several frequency modulation profiles on conducted-noise reduction in dc-dc converters with programmed switching controller. The converter is operated in variable frequency modulation regime. Twelve switching frequency modulation profiles have been studied. Some of the modulation data are prepared using MATLAB software, and others are generated online. Moreover, all the frequency profiles have been designed and implemented using FPGA and experimentally investigated. The experimental results show that the conducted-noise spreading depends on both the modulation sequence profile and the statistical characteristics of the sequence. A substantial part of the manufacturing cost of power converters for telecommunication applications involves designing filters to comply with the EMI limits. Considering this investigation significantly reduces the filter size.

Original languageEnglish
Pages (from-to)2265-2272
Number of pages8
JournalIEICE Transactions on Communications
VolumeE93-B
Issue number9
DOIs
Publication statusPublished - Sep 2010

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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