A 1-kW isolated non-cascaded boost buck-boost AC/DC PFC power supply based on reduced redundant power processing principle

Martin K H Cheung, Martin H L Chow, Chi Kong Tse

Research output: Journal article publicationConference articleAcademic researchpeer-review

6 Citations (Scopus)


This paper addresses a non-cascaded connection of two power converters for achieving power factor correction (PFC) and fast voltage regulation for high power applications. The non-cascaded structure can inherently achieve a higher overall efficiency because part of the input power is processed by only one power conversion stage before it is transferred to the output load. A PFC AC/DC power supply that employs an isolated boost full-bridge (IBFB) converter for PFC with non-cascaded connection to a buck-boost converter for voltage regulation is described. A prototype of the proposed power supply is constructed and the experimental waveforms are given.
Original languageEnglish
Pages (from-to)619-626
Number of pages8
JournalINTELEC, International Telecommunications Energy Conference (Proceedings)
Publication statusPublished - 1 Dec 2002
Event24th International Telecomunications Energy Conference (INTELEC 2002) - Montreal, Que, Canada
Duration: 29 Sep 20023 Oct 2002

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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