Title :
Transformer parasitic parameter and lossless inductive snubber assisted zero current soft switching power supply for power microwave generator
Author :
Ishitobi, Manabu ; Ahmed, Tarek ; Gamage, Laknath ; Nakaoka, Mutsuo
Author_Institution :
Dept. of Electr. & Electron. Eng., Yamaguchi Univ., Ube, Japan
Abstract :
This paper present a novel prototype of a high-frequency transformer parasitic parameter and a lossless inductive snubber assisted series-resonant ZCS-PFM DC-DC power converter, which is designed for high power magnetron. When a conventional series-resonant PFM DC-DC converter is designed for magnetron drive, it is very difficult to implement zero current soft switching commutation due to the influence of the magnetizing current through a high-frequency transformer. In order to implement soft switching commutation, the new topology that can actively utilize the magnetizing current is proposed and evaluated the performance in the prototype of power microwave generator.
Keywords :
DC-DC power convertors; commutation; high-frequency transformers; magnetrons; microwave generation; pulse frequency modulation; resonant power convertors; snubbers; switched mode power supplies; switching convertors; constant duty cycle; high-frequency transformer; lossless inductive snubber; magnetizing current; power magnetron drive; power microwave generator; series-resonant converter ZCS-PFM DC-DC power converter; zero current soft switching commutation; DC-DC power converters; High power microwave generation; Magnetic switching; Microwave generation; Power generation; Power supplies; Prototypes; Snubbers; Switching converters; Topology;
Conference_Titel :
Power Electronics and Drive Systems, 2003. PEDS 2003. The Fifth International Conference on
Print_ISBN :
0-7803-7885-7
DOI :
10.1109/PEDS.2003.1283137
