Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Integrated Magnetic Transformer for ZVS Phase Shift Full Bridge Converter
Authors Xin-LanLiXin-Lan Li ; Yong-HwanShinYong-Hwan Shin ; Jae-SunWonJae-Sun Won ; Jong-SunKimJong-Sun Kim ; Hwi-BeomShinHwi-Beom Shin
DOI 10.6113/TKPE/2010.15.2.119
Page pp.119-126
ISSN 1229-2214
Keywords Power electronics; Integrated magnetic transformer; Full bridge converter
Abstract An integrated magnetic (IM) transformer is proposed for a phase shifted full bridge (PSFB) converter with zero voltage switching (ZVS). In a proposed IM transformer, the transformer is located on the center leg of E-core and the output inductor is wound on two outer legs with air gap. The proposed IM transformer is analyzed by using the magnetic capacitor model. For reducing the core size, EE core is redesigned. The proposed IM transformer is experimentally verified on a 1.2 kW prototype converter. The converter efficiency with the proposed IM transformer is about 93 % at full load and its volume size can be reduced. It can be expected that the power density can be largely increased with the proposed IM transformer.