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Characteristics of high-frequency AC link DC-DC converter employing secondary phase-shift PWM control and experiment
S.Matsushita, K.Akamatsu, M.Michihira, A.Tsuyoshi, K.Amako

ABSTRUCT
@High-frequency AC link DC-DC converter with phase-shifted PWM-control scheme apllied soft-switching thecnique have remarkable advantage such as lowered switching losses of power semiconductor device, reduced EMI noise, simple control scheme and so on. However, The conventional scheme include some inherent problems which must be solved such as reduced power conversion efficiency due to significant circulating current generation. So we presents before a novel high-frequency AC link DC-DC converter with secondary phase-shifted PWM-control scheme using active switches in rectifier circuit. In this paper, its operating principle and unique features are described as compered with the simulated analytical and experiment results.





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