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A family of isolated buck–boost dc/dc converter for wide input-voltage range is proposed in this paper, and the full-bridge (FB) boost converter, being one of the typical topologies, is analyzed. Due to the existence of the resonant inductor (including the leakage inductor), the FB-boost converter can only adopt the two-edge-modulation (TEM) scheme with the FB cell being leading-edge modulated and...
A family isolated Buck-Boost converter is proposed in this paper, and FB-Boost converter is analyzed as one of the typical topologies. An improved two-edge modulation strategy is proposed to minimize the inductor current ripple over the input voltage range. In order to improve the efficiency and reliability of FB-Boost converter, three-mode control scheme is proposed in this paper, according to the...
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