A Bridgeless, Quasi-Resonant ZVS-Switching, Buck-Boost Power Factor Correction Stage (PFC)

Konferenz: PCIM Europe 2016 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
10.05.2016 - 12.05.2016 in Nürnberg, Deutschland

Tagungsband: PCIM Europe 2016

Seiten: 8Sprache: EnglischTyp: PDF

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Scherbaum, Markus; Reddig, Manfred (Augsburg University of Applied Sciences, Germany)
Kennel, Ralph (Technical University of Munich, Germany)
Schlenk, Manfred (Infineon Technologies AG, Germany)

This paper presents a new bridgeless, quasi-resonant zero voltage switching (ZVS), buck-boost power factor correction stage (PFC). The elimination of the input rectifier leads to a higher level of efficiency, especially at low input voltages. Several bridgeless PFC circuits already exist, but the proposed new converter also achieves ZVS in a wide operating range with significant reduced switching losses and some other benefits.