Indian Journal of Science and Technology
Year: 2017, Volume: 10, Issue: 4, Pages: 1-6
Kei Eguchi1 , Wanglok Do1 , Kanji Abe1 , Krit Smerpitak2 and Sawai Pongswatd2
1Department of Information Electronics, Fukuoka Institute of Technology, Japan; [email protected]; [email protected]; [email protected] 2Faculty of Engineering, King Mongkut’s Institute of Technology, Ladkrabang, Thailand; [email protected]; [email protected]
Switched capacitor (SC) techniques is used in order to design a simple inductor-less ac-ac converter with small size and high input power factor. Comparing conventional inductor-less ac-ac converters with the proposed converter, an input/ output (I/O) terminal is connected alternately to one of capacitors to achieve ac-ac conversion. To realize the new topology, the new designed converter is composed of two capacitors and four switches in the conversion ratios of 2 and 1/2. For this reason, as well as high input power factor, the proposed converter can achieve small size. To explain how the proposed converter is operated with the conversion ratios of 2 and 1/2, operation’s law, analysis in theory, and results of circuit simulation are written on this paper. The validity of the proposed converter is confirmed by circuit simulations using SPICE simulator.
Keywords: Direct AC-AC Converters, Power Converters, Switched Capacitor Techniques, Switching Mode Power Supply
Subscribe now for latest articles and news.