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A High-Efficient Nonisolated Single-Stage On-Board Battery Charger for Electric Vehicles

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6 Author(s)
Chang-Yeol Oh ; Coll. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon, South Korea ; Dong-Hee Kim ; Dong-Gyun Woo ; Won-Yong Sung
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The design and implementation of a high-efficiency nonisolated single-stage on-board battery charger (OBC) for electric vehicles are presented. Reviewing the conventional topologies, a suitable circuit structure is determined to charge a battery in a wide spectrum of input and output conditions. Additionally, a suitable strategy for a highly efficient OBC is presented through the analysis of selected topology. A detailed theoretical analysis, operating strategy, and experimental results on a 3.7-kW prototype are presented in order to evaluate the performance of the proposed system.

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Power Electronics, IEEE Transactions on  (Volume:28 ,  Issue: 12 )