Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title 2-Phase Bidirectional Non-Inverting Buck-Boost Converter using Coupled Inductor
Authors Jun-Young Chae ; Seung-Yong Jeong ; Hon-Nyong Cha ; Heung-Geun Kim
DOI 10.6113/TKPE/2014.19.6.481
Page pp.481-487
ISSN 1229-2214
Keywords Buck-boost converter; Coupled inductor; Interleaved PWM; Multi-phase converter
Abstract This study proposes a two-phase non-inverting buck-boost converter that uses a coupled inductor. The multi-phase converter has many advantages over single-phase counterparts, such as reduced output current ripple and conduction loss in switching devices and passive elements. Although the output current ripple of the multi-phase converter is reduced significantly because of the interleaved effect, the inductor current ripple is not reduced in multi-phase converters. One of the solutions to this problem is to use a coupled inductor. A 4 kW prototype converter is built and tested to verify the performance of the proposed converter.