Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title High Efficiency Two-Phase Interleaved Buck Converter with Coupled Inductor Design
Authors Hyunji Kang ; Jinwoo Kim ; Sungmin Lee ; Younghoon Cho
DOI 10.6113/TKPE.2020.25.5.350
Page pp.350-357
ISSN 1229-2214
Keywords Buck converter; Coupled inductor; Interleaving; Two-phase interleaved buck converter; DM (Differential Mode)
Abstract This study presents the design of an 18 kW two-phase interleaved buck converter that uses a coupled inductor for an electric vehicle rapid charger. The designs of a two-phase coupled inductor for current ripple and physical size reduction and a two-phase interleaved buck converter based on silicon carbide metal?oxide?semiconductor field-effect transistor for high efficiency were described in detail. The operating principle of the two-phase interleaved buck converter was analyzed, and the coupled inductor was investigated using a magnetized equivalent circuit. Simulation and experiments were conducted to verify the validity of the proposed two-phase interleaved buck converter, and the theoretical design method and experimental results were confirmed.