Title :
1 kW/250 kHz full bridge zero voltage switched phase shift DC-DC converter with improved efficiency
Author :
Valtchev, Stanimir ; Borges, Beatriz V. ; Anunciada, Victor
Author_Institution :
Dept. of Power Electron., Tech. Univ. Sofia, Bulgaria
Abstract :
This paper presents the analysis, design, simulation and experimental results of a full bridge zero voltage switched phase shift DC-DC converter, working with an internal frequency of 250 kHz, with an output power of 1 kW. The converter uses a two windings inductor with the secondary connected to the output by means of two clamping rectifier diodes, to allow resonant commutation of the passive to active leg of the converter. With this process it is possible to improve the efficiency of the converter
Keywords :
DC-DC power convertors; bridge circuits; commutation; diodes; inductors; phase shifters; resonant power convertors; switching circuits; windings; 1 kW; 250 kHz; clamping rectifier diodes; converter efficiency improvement; design; full bridge ZVS phase shift DC-DC converter; internal frequency; output power; resonant commutation; secondary winding; two windings inductor; zero voltage switching; Active inductors; Analytical models; Bridge circuits; Clamps; DC-DC power converters; Frequency conversion; Power generation; Rectifiers; Switching converters; Zero voltage switching;
Conference_Titel :
Telecommunications Energy Conference, 1995. INTELEC '95., 17th International
Conference_Location :
The Hague
Print_ISBN :
0-7803-2750-0
DOI :
10.1109/INTLEC.1995.499051
