TY - GEN
T1 - Operation analysis of a novel high frequency-link asymmetrical half-bridge ZCS-PWM DC-DC converter
AU - Mishima, Tomokazu
AU - Hiraki, Eiji
AU - Tanaka, Toshihiko
AU - Fathy, Khairy
AU - Nakaoka, Mutsuo
PY - 2007
Y1 - 2007
N2 - A novel zero current soft-swithing PWM half-bridge DC-DC converter topology is proposed in this paper. The newly proposed converter consists of a PWM-controlled half-bridge inverter and a current doubler rectifier linked with a high-frequency transformer. In order to attain the wide range of soft switching operation in the high voltage/low current primary side inverter, asymmetrical lossless snubbers composed by an actively-switched capacitor and lossless inductors are employed in the half-bridge arm, providing Zero Current Switching (ZCS) that is less sensitive to the magnitude of the input current. The operation characteristics of the proposed DC-DC converter are described, and its feasibility is demonstrated with simulation and preliminary experimental results.
AB - A novel zero current soft-swithing PWM half-bridge DC-DC converter topology is proposed in this paper. The newly proposed converter consists of a PWM-controlled half-bridge inverter and a current doubler rectifier linked with a high-frequency transformer. In order to attain the wide range of soft switching operation in the high voltage/low current primary side inverter, asymmetrical lossless snubbers composed by an actively-switched capacitor and lossless inductors are employed in the half-bridge arm, providing Zero Current Switching (ZCS) that is less sensitive to the magnitude of the input current. The operation characteristics of the proposed DC-DC converter are described, and its feasibility is demonstrated with simulation and preliminary experimental results.
KW - Active snubber
KW - Current doubler rectifier
KW - Edge-resonant
KW - Half-bridge DC-DC converter
KW - Low voltage/large current output
KW - PWM
KW - Switched capacitor
KW - Zero current switching
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U2 - 10.1109/PCCON.2007.373027
DO - 10.1109/PCCON.2007.373027
M3 - Conference contribution
AN - SCOPUS:34748912942
SN - 142440844X
SN - 9781424408443
T3 - Fourth Power Conversion Conference-NAGOYA, PCC-NAGOYA 2007 - Conference Proceedings
SP - 595
EP - 600
BT - Fourth Power Conversion Conference-NAGOYA, PCC-NAGOYA 2007 - Conference Proceedings
T2 - 4th Power Conversion Conference-NAGOYA, PCC-NAGOYA 2007
Y2 - 2 April 2007 through 5 April 2007
ER -