A review of EMI problems in switch mode power supply design

M. K.W. Wu, Chi Kong Tse

Research output: Journal article publicationReview articleAcademic researchpeer-review

18 Citations (Scopus)


Switch mode power supplies (SMPSs) have rapidly gained popularity in recent years because of their high-efficiency and relatively small size and weight. Although SMPSs may not be operated at a very high frequency, the associated square pulses are full of high frequency components that may cause electromagnetic interference (EMI) to other electronic products. Methods have been derived to reduce interference, such as snubbering, filtering and spreading switching spectrum. This article gives a review on the various aspects of EMI problems related to the design of SMPSs and in particular discusses the sources and victims of interference and some controlling methods.
Original languageEnglish
Pages (from-to)193-204
Number of pages12
JournalJournal of Electrical and Electronics Engineering, Australia
Issue number3-4
Publication statusPublished - 1 Dec 1996

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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