Title :
Quasi-resonant ZVS-PWM inverter-fed DC-DC converter for microwave oven and its input harmonic current evaluations
Author :
Miyata, E. ; Hishikawa, Satoru ; Matsumoto, K. ; Nakaoka, M. ; Bessyo, D. ; Yasoi, K. ; Hirota, I. ; Omori, Hideki
Author_Institution :
Graduate Sch. of Sci. & Eng., Yamaguchi Univ., Japan
Abstract :
In this paper, a circuit topology of an active voltage clamped quasi-resonant PWM inverter-type DC-DC converter using IGBTs is proposed in order to improve the function of conventional single-ended soft switching converter for a magnetron drive. This converter includes some advantages capable of clamping the peak voltage across the main power semiconductor switching device. In addition, the anode current was reduced by up to 1.2 A with a magnetron as a load of this converter. Furthermore, the special modulation pattern for the operating frequency and PWM of the inverter is also proposed in order to improve line current distortion and power factor in utility AC power side. Harmonic current components in utility grid AC power side are regulated under the condition of the peak value limitation of the anode current of magnetron and soft switching PWM strategy
Keywords :
DC-DC power convertors; PWM invertors; harmonic distortion; insulated gate bipolar transistors; magnetrons; microwave heating; ovens; power conversion harmonics; power factor; resonant power convertors; switching circuits; IGBT; active voltage clamping; anode current; anode current reduction; circuit topology; harmonic current components; input harmonic current evaluations; line current distortion improvement; magnetron; microwave oven; modulation pattern; operating frequency; peak value limitation; peak voltage clamping; power factor; power semiconductor switching device; quasi-resonant ZVS-PWM inverter-fed DC-DC converter; single-ended soft switching converter; soft switching PWM strategy; utility grid AC power side; Anodes; Circuit topology; DC-DC power converters; Insulated gate bipolar transistors; Magnetic semiconductors; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Switching converters; Voltage;
Conference_Titel :
Industrial Electronics Society, 1999. IECON '99 Proceedings. The 25th Annual Conference of the IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-5735-3
DOI :
10.1109/IECON.1999.816498
