Title :
Transformer parasitic parameters and lossless inductive snubber assisted zero current soft switching DC-DC converter for high power magnetron drive
Author :
Ishitobi, Manabu ; Gamage, Laknath ; Moisseev, Serguei ; Soshin, Koji ; Nakaoka, Mutsuo
Author_Institution :
Div. of Electr. & Electron. Eng., Yamaguchi Univ., Japan
Abstract :
This paper presents 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 discussed on the basis of simulation and experimental results.
Keywords :
DC-DC power convertors; commutation; electromagnetic induction; high-frequency transformers; insulated gate bipolar transistors; magnetrons; microwave generation; potential transformers; pulse frequency modulation; snubbers; DC-DC converter; IGBT; ZCS-PFM DC-DC power converter; constant duty cycle; high power magnetron drive; high-frequency transformer link; high-voltage transformer link; loss less inductive snubber; magnetizing current; pulse frequency module; transformer parasitic parameter; voltage doubler; zero current soft switching commutation; DC-DC power converters; Frequency conversion; Magnetic circuits; Magnetic resonance; Magnetic switching; Power semiconductor switches; Pulse transformers; Resonant inverters; Snubbers; Switching converters;
Conference_Titel :
Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual
Print_ISBN :
0-7803-7754-0
DOI :
10.1109/PESC.2003.1217730
