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Hiroaki Tanimatsu,Kenji Yasui,Izuo Hirota,Toshiaki Iwai,Hideki Omori,Katsumi Nishida,Mutsuo Nakaoka 전력전자학회 2004 ICPE(ISPE)논문집 Vol.- No.-
This paper presents a two-switch boost-half bridge one stage topology of commercial single-phase utility AC-grid interfaced soft switching pulse modulation high-frequency inverter with active power filtering function, which is more acceptable for consumer IH cooking heater and steamer. The commercial utility AC mains connected boost-half bridge type high-frequency inverter circuit with lossless snubbing capacitors is mainly composed of a single<br/> stage power conversion processing combined by discontinuous<br/> current mode (DCM) PFC power converter due to boost chopper and a constant frequency ZVS-PWM controlled SEPP series resonant high-frequency inverter with induction heated load such as rice cooker, floor heating steamer, and fixing heating drum roller in copy and printer equipment. This two-switch boost-half bridge type one stage power conversion processing includes some advantageous points as simple configuration, low cost, harmonic current reduction with unity power factor, and soft switching operation. Its operating principle is described and discussed herein. In<br/> addition to these, the operating performances of utility AC-HFAC power frequency converter treated here are illustrated on the basis of simulation and experimental results. Its practical effectiveness for consumer IH cooker and hot water producer is proved from an experimental point of view.
Hiroaki Tanimatsu,Hideki Sadakata,Toshiaki Iwai,Hideki Omori,Yuta Miura,Eiji Hiraki,Hyun Woo Lee,Mutsuo Nakaoka 전력전자학회 2004 ICPE(ISPE)논문집 Vol.- No.-
In this paper, a novel type auxiliary switched capacitor assisted soft switching PWM Single-Ended Push Pull (SEPP) series resonant inverter with two auxiliary resonant lossless inductor snubbers proposed and discussed for consumer high-frequency induction heating (IH) appliances. The new topological high-frequency multi<br/> resonant inverter can regulate its output power under a constant frequency soft switching commutation principle by asymmetrical PWM scheme. The consumer brand-new IH products which use newly proposed soft switching PWM-SEPP series load resonant high-frequency inverter is actually evaluated and discussed as compared with some<br/> conventional high-frequency inverters on the basis of simulation and experimental results. Its practical effectiveness is proved from an application point of view.