Proposal of a Soft-Switching Single-Phase Three-Level Rectifier
Tofoli, F.L.; Coelho, E.A.A.; de Freitas, L.C.; Farias, V.J.; Vieira, J.B.
Industrial Electronics, IEEE Transactions on
Volume 55, Issue 1, Jan. 2008 Page(s):107 - 113
Digital Object Identifier   10.1109/TIE.2007.896052
Summary:This paper is concerned with the study of a single-phase boost-type three-level rectifier. The converter is supposed to present high input power factor, low current harmonics, low total harmonic distortion, and simple control scheme. In order to minimize switching losses, a passive nondissipative snubber is associated with the aforementioned converter. The theoretical analysis, design procedure, and analytical results regarding a 1.2-kW prototype are presented to validate the proposal.

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