Double-hybrid spread-spectrum technique for conducted-EMI reduction in DC-DC switching regulators with FPGA-based controller

Gamal M. Dousoky, Masahito Shoyama, Tarnotsu Ninomiya

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

The purpose of this paper is to present a novel technique for conducted-noise reduction in de-de switching regulators. In order to effectively spread the conducted-noise frequency spectrum and, at the same time, attain a satisfactory voltage regulation, two parameters (carrier frequency and pulse position) have been randomized, and the third parameter (duty ratio) has been controlled by a digital compensator. Furthermore, the effect of using the proposed controller on common-mode, differential-mode, and total conducted-noise characteristics of the converter has been experimentally investigated. The converter's performance with using the proposed technique has been experimentally investigated. It is assumed that the implementation technology is a field programmable gate array (FPGA) which is becoming increasingly adopted in industrial electronic applications.

Original languageEnglish
Title of host publicationINTELEC 2009 - 31st International Telecommunications Energy Conference
DOIs
Publication statusPublished - 2009
Event31st International Telecommunications Energy Conference, INTELEC 2009 - Incheon, Korea, Republic of
Duration: Oct 18 2009Oct 22 2009

Publication series

NameINTELEC, International Telecommunications Energy Conference (Proceedings)
ISSN (Print)0275-0473

Other

Other31st International Telecommunications Energy Conference, INTELEC 2009
CountryKorea, Republic of
CityIncheon
Period10/18/0910/22/09

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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