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Design and implementation of a novel soft-switching half-bridge power factor corrector with output voltage balance control

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Abstract

This paper provides a novel soft-switching half-bridge power factor corrector (PFC) with output voltage balance control using zero-current-switching (ZCS) auxiliary resonant circuits. In proposed soft-switching PFC, ZCS's on the active switches are achieved without additional current stress. The steady-state analysis is performed for operation illustration and the small-signal analysis is also built up for output regulation control. An average-current-mode for power factor correction is utilized to control the proposed soft-switching half-bridge PFC in the continuous conduction mode. The balance control technique is designed to overcome the two output capacitor voltage imbalance that is inherent in half-bridge topology. The operational principles, design considerations and realizations are discussed and verified. The prototype specification of the proposed soft-switching half-bridge PFC is rated at 400W and operates at 30kHz, with an input ac voltage of 110V rms and a regulated output voltage 400V dc, for experiments to verify the theoretic analysis.

Original languageEnglish
Title of host publicationProceedings
Subtitle of host publicationIECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society
Pages1282-1288
Number of pages7
DOIs
StatePublished - 2011
Event37th Annual Conference of the IEEE Industrial Electronics Society, IECON 2011 - Melbourne, VIC, Australia
Duration: 7 Nov 201110 Nov 2011

Publication series

NameIECON Proceedings (Industrial Electronics Conference)

Conference

Conference37th Annual Conference of the IEEE Industrial Electronics Society, IECON 2011
Country/TerritoryAustralia
CityMelbourne, VIC
Period7/11/1110/11/11

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