Title :
A novel type soft switching PWM DC-DC converter with high voltage transformer link for magnetron drive
Author :
Ishitobi, M. ; Matsushige, T. ; Moisseev, S. ; Al, M. Abdullah ; Nakaoka, M. ; Terai, H. ; Bessyo, D. ; Yasui, K. ; Omori, H.
Author_Institution :
Div. of Electr. & Electron. Eng., Yamaguchi Univ., Japan
Abstract :
A circuit topology of an active voltage clamped quasi-resonant PWM inverter circuit is presented in this paper for a magnetron drive. The resonant voltage of the main active power semiconductor switch is clamped by the subsidiary active power semiconductor switch and capacitor which is connected in series with the main switch. One of the salient features of the circuit is to have ZVS-PWM output power control under a fixed frequency. Its power factor and current harmonics in the utility AC side can be regulated by a variable frequency PWM strategy under a limitation condition of the allowable anode current of its from a viewpoint of the magnetron lifetime
Keywords :
DC-DC power convertors; PWM power convertors; harmonics suppression; magnetrons; power factor correction; power supplies to apparatus; power system harmonics; switching circuits; transformers; ZVS-PWM output power control; active voltage clamped quasi-resonant inverter; anode current; capacitor; current harmonics regulation; high voltage transformer; high voltage transformer link; magnetron drive; power factor regulation; resonant voltage clamping; soft switching PWM DC-DC converter; subsidiary active power semiconductor switch; utility AC side; Circuit topology; DC-DC power converters; Frequency; Magnetic circuits; Power semiconductor switches; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Switching converters; Voltage;
Conference_Titel :
Industrial Electronics Society, 2000. IECON 2000. 26th Annual Confjerence of the IEEE
Conference_Location :
Nagoya
Print_ISBN :
0-7803-6456-2
DOI :
10.1109/IECON.2000.973176
