Abstract
This paper deals with the analysis of buck interleaved DC-DC converter with a coupled inductor on the same magnetic core. The advantage of the coupled inductor over the non-coupled case is investigated. The current ripple equations as an output current for the buck operation mode and the ripple current in individual phase of the interleaved converter using coupled inductor are explained analytically and supported by simulation and experimental results. The novelty of the paper is an investigation of current ripples of interleaved buck converter operated over 50 % of duty ratio and utilization of the converter in the application of electric drive vehicle.
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