A new isolated AC-DC converter for an on-board charger has been developed. It consists of an AC-DC converter with Gradationally Controlled Voltage Inverter and an isolated zero-voltage-switching DC-DC converter. To make these converters cooperate efficiently over the wide range of operating voltage conditions, we developed an optimized converter control. As a result, the new isolated AC-DC converter can operate with power conversion efficiency of over 94%.
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Kaneyama et al. (2013) studied this question.
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