Ailton do Egito Dutra, Montiê Alves Vitorino, A. Felinto, M. B. de Rossiter Corrêa
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Single-Phase Cascaded Multilevel Rectifier Using Totem-Pole Bridgeless Cells
Rectifier topologies with reduced switch count can be employed in unidirectional power flow applications. These configurations have the advantages of less necessary driver circuits, since some power switches are replaced by diodes, and high reliability. Following this trend, the present work proposes a multilevel AC/DC converter composed of cascaded Totem-Pole Bridgeless cells with independent outputs. This structure is achieved by replacing one leg of switches of the traditional Full-Bridge cell by a diode leg. The operation analysis of the proposed topology is presented as well as simulation and experimental results to validate the theoretical approach.
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