An Improved Dual-Output Five-Level Buck PFC Rectifier With Reduced Switch Count

Research on power converters featuring multipurpose capabilities holds a lot of potential in power electronics. This paper presents an AC/DC converter with a reduced component count and dual DC output terminals. The semiconductor devices in the proposed topology undergo reduced switching (ON/OFF) transitions in a switching cycle, considerably lowering the switching losses. Furthermore, the multicarrier pulse width modulation control architecture allows for the simultaneous feeding of single and double equal/unequal loads without sacrificing converter stability. Additionally, because of its continuous current mode functioning, fewer capacitive and inductive filters are needed at the input and output sides. Experimental verification has been done on the proposed transformerless multilevel rectifier topology in steady-state and dynamic operating conditions. Finally, a detailed comparative assessment is included to demonstrate the superior performance of the proposed topology.