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This work presents a unidirectional three-phase PFC rectifier well-suited for applications targeting high efficiency, reduced conducted emissions and/or high power density. The characteristics of this circuit, which is based on the paralleling of DELTA-switch rectifiers by means of interphase transformers, including the principles of operation, modulation strategy, suitable PFC-oriented control scheme,...
This work presents a new multilevel unidirectional single-phase PFC rectifier topology well-suited for applications targeting for high efficiency and/or high power density. The characteristics of this rectifier topology, including the principles of operation, modulation strategy, feedback control scheme, and dimensioning equations are described in this paper. Finally, a 3 kW laboratory prototype is...
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