EMI reduction via spread spectrum in DC/DC converters: State of the art, optimization, and tradeoffs

Fabio Pareschi, Riccardo Rovatti, Gianluca Setti

Research output: Contribution to journalArticlepeer-review

112 Scopus citations

Abstract

Spread spectrum is a technique introduced for mitigating electromagnetic interference (EMI) problems in many class of circuits. In this paper, with particular emphasis on switching DC/DC converters, we consider the most common and most efficient known spreading techniques, looking for spreading parameters that ensure the highest EMI reduction and the lowest performance reduction in the circuit where the spreading is applied. The result is an interesting tradeoff not only between EMI reduction and performance drop, but also on the EMI reduction itself when considering different EMI victim models. The proposed analysis is supported by measurements on two switching DC/DC converters: 1) based on pulsewidth modulation and 2) based on the resonant converter class.
Original languageEnglish (US)
Pages (from-to)2857-2874
Number of pages18
JournalIEEE Access
Volume3
DOIs
StatePublished - Dec 28 2015
Externally publishedYes

ASJC Scopus subject areas

  • General Engineering
  • General Computer Science
  • General Materials Science

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