A Family of Voltage-Multiplier Unidirectional Single-Phase Hybrid Boost PFC Rectifiers - 2017


This paper presents 3 unidirectional step-up ac-dc converter topologies with voltage multiplication on their outputs. The first topology is the hybrid boost rectifier and the opposite 2 are novel bridgeless structures, all based mostly on the combination of boost rectifier and also the ladder switched-capacitor (SC) cell. The new hybrid structures provide high voltage gain with low voltage stress across the switches, high-power issue, and output voltage regulation. This paper presents the principle of operation, steady-state and dynamic analysis, design methodology, and experimental verification. A totally different approach is also presented for the look methodology of the SC cell and for the analysis of its influence on the dynamic model. Three a thousand-W prototypes with a 220-V input voltage, 800-V output voltage, and one hundred-kHz switching frequency were designed to corroborate the theoretical study. The best potency was ninety seven.onep.c within the proposed bridgeless versions and the voltage stress across the switches stands around four hundred V. Furthermore, a comparison between the proposed structures and former topologies is also presented.

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