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Power conversion systems for electric vehicles (EVs) have been researched to improve power density and efficiency at low cost. To satisfy these needs for EVs, this paper proposes a novel battery charging system that integrates a nonisolated on-board charger (OBC) and low-voltage dc–dc converters (LDCs) by sharing the semiconductor devices and mechanical elements. Thus, the volume of LDCs is reduced...
A non-isolated single-stage on-board charger (OBC) for electric vehicles (EVs) has been proposed in order to satisfy high efficiency and high power density. However, the conventional works could not achieve high efficiency according to the voltage variation of the utility and the battery, especially during the step-down operation. This paper proposes an advanced control algorithm to improve the system...
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