DocumentCode :
3442852
Title :
Study of an optimized resonant converter for high-voltage applications
Author :
Garcìa, V. ; Rico, M. ; Sebastián, J. ; Hernando, M.M. ; Uceda, J.
Author_Institution :
Dept. de Ingenieria Electron., Oviedo Univ., Spain
fYear :
1994
fDate :
21-25 Aug 1994
Firstpage :
114
Lastpage :
121
Abstract :
This paper presents the study of a high-voltage DC-to-DC resonant power converter which has excellent behaviour for use in applications with strong variations in the output voltage and in the output current, because it maintains high efficiency in these types of applications. To do so, the switching losses have been minimized by integrating all parasitic elements (leakage inductance, secondary side capacitance of the high-voltage transformer and parasitic capacitances of the power switches and diodes) into the power topology, and the conduction losses have been minimized by operating the converter in a special mode (optimum switching line) in which no reactive energy is returned from the resonant elements to the input voltage source. The type of control used (PWM phase-shifted) allows one to maintain these desirable characteristics even when the operating point suffers a very strong variation, The final power topology might be called a “full-bridge, clamped mode, LCC-type parallel resonant power converter with capacitive output filter”
Keywords :
DC-DC power convertors; PWM power convertors; bridge circuits; circuit optimisation; equivalent circuits; losses; network topology; resonant power convertors; DC-to-DC resonant power converter; HV applications; LCC-type parallel resonant power converter; capacitive output filter; clamped mode circuit; conduction losses; efficiency; full-bridge circuit; operating point; output current; output voltage; power topology; switching losses; DC-DC power converters; Diodes; Inductance; Parasitic capacitance; Pulse width modulation; Pulse width modulation converters; Resonance; Switching converters; Switching loss; Topology;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Electronics Congress, 1994. Technical Proceedings. CIEP '94., 3rd International
Conference_Location :
Puebla
Print_ISBN :
0-7803-2068-9
Type :
conf
DOI :
10.1109/CIEP.1994.494409
Filename :
494409
Link To Document :
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