DocumentCode :
656284
Title :
High efficiency isolated DC-DC converter combining resonant and phase-shifted topologies for electrical vehicle chargers
Author :
Wensong Yu ; Hongmei Wan ; Jih-sheng Lai ; Miwa, H. ; Wei-Han Lai ; Nan-Hsiung Tseng ; Chi-Seng Lee ; Chin-Hone Lin ; Ya-Wen Shih
Author_Institution :
Future Energy Electron. Center, Virginia Polytech. Inst. & state Univ., Blacksburg, VA, USA
fYear :
2013
fDate :
3-6 Nov. 2013
Firstpage :
175
Lastpage :
180
Abstract :
A novel soft-switching converter combining resonant half-bridge and phase shifted full-bridge configuration is proposed not only to eliminate the issue of the possible MOSFET device damage due to hard-switching under high voltage because the zero-voltage-switching (ZVS) of MOSFETs is ensured even at true zero load, but also to minimize the duty cycle loss and circulating conduction loss since that the current resetting speed of IGBTs in the lagging leg is similar to that of the hard-switching converters. A 6.6 kW hardware prototype has been designed, fabricated and tested to verify the validity and improved performance of the proposed circuit. Experimental results show that the proposed topology is attractive for electrical vehicle on-board charger applications as the unit has demonstrated a maximum efficiency of 98.4% and achieved soft switching for the entire range of output battery charging voltage and current conditions.
Keywords :
DC-DC power convertors; MOSFET circuits; battery powered vehicles; bridge circuits; insulated gate bipolar transistors; power semiconductor switches; resonant power convertors; secondary cells; zero voltage switching; IGBT; MOSFET device damage; ZVS; conduction loss circulation; duty cycle loss minimization; electrical vehicle on-board charger applications; hard-switching converters; high efficiency isolated DC-DC converter; lagging leg; output battery charging current condition; output battery charging voltage condition; phase shifted full-bridge configuration; phase-shifted topologies; power 6.6 kW; resetting speed; resonant half-bridge configuration; resonant topologies; soft-switching converter; zero load; zero-voltage-switching; Educational institutions; Hardware; Insulated gate bipolar transistors; Laboratories; Lead; Magnetic resonance; Switches;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Future Energy Electronics Conference (IFEEC), 2013 1st International
Conference_Location :
Tainan
Print_ISBN :
978-1-4799-0071-8
Type :
conf
DOI :
10.1109/IFEEC.2013.6687499
Filename :
6687499
Link To Document :
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