Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Design and Analysis of a 7kW LDC using Coupled Inductor for Heavy Hydrogen Electric Transport Vehicle
Authors Gyeong-Hyeon Heo ; Woo-Seok Lee ; Seung-Won Choi ; Il-Oun Lee ; Hyung-Suk Song ; Jun-Young Lee
DOI 10.6113/TKPE.2020.25.1.37
Page pp.37-43
ISSN 1229-2214
Keywords CI(Coupled Inductor); EV converter; LDC(Low DC-DC Converter); PSFB(Phase-shift Full-bridge) converter
Abstract This study proposes a 7kW low-voltage DC-DC converter (LDC) using a coupled inductor (CI) for heavy hydrogen electric transport vehicles. The LDC uses a phase-shift manner for soft switching. SiC-MOSFET is used to reduce the loss of reverse recovery current through the use of a high switching frequency. LDC is require large transformer and inductor because of large output current. The size of transformer and inductor can be reduced by deviding the transformer and inductor into two pieces each. This work presents the experimental results of the proposed circuit.