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http://dx.doi.org/10.6113/TKPE.2020.25.5.350

High Efficiency Two-Phase Interleaved Buck Converter with Coupled Inductor Design  

Kang, Hyunji (Division of Electrical Engineering, Konkuk University)
Kim, Jinwoo (Division of Electrical Engineering, Konkuk University)
Lee, Sungmin (Division of Electrical Engineering, Konkuk University)
Cho, Younghoon (Division of Electrical Engineering, Konkuk University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.25, no.5, 2020 , pp. 350-357 More about this Journal
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.
Keywords
Buck converter; Coupled inductor; Interleaving; Two-phase interleaved buck converter; DM (Differential Mode);
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