Title :
Effect of the deadtime on the ZVS in phase-shifted full-bridge DC/DC converter for electric vehicle application
Author :
Hangyu Xu ; Bo Rao ; Bin Yi ; Quanlin Li ; Yonghua Ding ; Yuan Pan
Author_Institution :
State Key Lab. of Adv. Electromagn. Eng. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China
fDate :
Aug. 31 2014-Sept. 3 2014
Abstract :
Phase-shifted full-bridge (PSFB) DC/DC converter with synchronous rectifiers, which has the advantages of high conversion efficiency, high power density, and low electromagnetic interference, is a widely used topology for power conversion in the electric vehicle. But it is not easy to achieve zero voltage switching (ZVS) operation under light load condition because the energy in leakage inductance is insufficient. This paper proposes that ZVS operation is also closely related to the deadtime of lagging-leg switches. Analysis and optimized design is presented. Feasibility and effectivity are verified with simulation and experimental results of a prototype converter.
Keywords :
DC-DC power convertors; electric vehicles; rectifiers; zero voltage switching; ZVS operation; deadtime; electric vehicle; electromagnetic interference; lagging-leg switches; leakage inductance; optimized design; phase-shifted full-bridge dc/dc converter; power conversion; power density; prototype converter; synchronous rectifiers; zero voltage switching; Capacitance; Inductance; MOSFET; Power electronics; Rectifiers; Switching loss; Zero voltage switching;
Conference_Titel :
Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-4240-4
DOI :
10.1109/ITEC-AP.2014.6941228
