DocumentCode :
1937936
Title :
A single-switch LCL-resonant isolated DC-DC converter
Author :
Jianwu Zeng ; Wei Qiao ; Liyan Qu
Author_Institution :
Dept. of Electr. Eng., Univ. of Nebraska-Lincoln, Lincoln, NE, USA
fYear :
2013
fDate :
15-19 Sept. 2013
Firstpage :
5496
Lastpage :
5502
Abstract :
Isolated converters are desirable in the DC-DC power conversion applications where isolation and/or a large voltage step-up gain is needed. Traditional isolated DC-DC converters either utilize many switches to achieve high efficiency or use few switches which result in low efficiency. This paper proposes a new single-switch isolated DC-DC converter with a LCL-resonant circuit. The proposed isolated DC-DC converter has the advantages of not only using the least number of (i.e., one) switch, but also achieving zero-current switching (ZCS) and zero-voltage switching (ZVS) when the switch is turned on and off, respectively. Experimental results are provided to validate the theoretical analysis and simulation. The proposed converter has achieved the maximum efficiency of 93.5%, which is higher than the corresponding hard-switching converter with a similar topology.
Keywords :
DC-DC power convertors; switches; switching convertors; zero current switching; zero voltage switching; ZCS; ZVS; hard switching converter; isolated DC-DC converters; single-switch LCL-resonant isolated DC-DC converter; voltage step-up gain; zero-current switching; zero-voltage switching; Capacitors; Inductance; Steady-state; Switches; Topology; Zero current switching; Zero voltage switching; Isolated DC-DC converter; LCL resonance; single-switch converter; soft switching;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2013 IEEE
Conference_Location :
Denver, CO
Type :
conf
DOI :
10.1109/ECCE.2013.6647447
Filename :
6647447
Link To Document :
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