NDLI: Operation Analysis and Control of Resonant Boost Switched Capacitor Converter with High Efficiency

Content Provider	IEEE Xplore Digital Library
Author	Shoyama, M. Deriha, F. Ninomiya, T.
Copyright Year	2005
Description	Author affiliation: Grad. Sch. of Inf. Sci. & Electr. Eng., Kyushu Univ., Fukuoka (Shoyama, M.; Deriha, F.; Ninomiya, T.)
Abstract	Conventional switched capacitor converters have an inherent drawback that their efficiency is much decreased as the output current is increased. This inherent drawback is due to a periodical forced charging and discharging operation in the internal switched capacitors accompanied by a large capacitor current, so that their efficiency can not be increased by decreasing its internal resistance. As a result, conventional switched capacitor converters have been limited to be used with a very small output current. To solve this problem we presented a novel switched capacitor converter topology that uses a resonant operation instead of the forced charging and discharging operation. Its advantage over a conventional switched capacitor converter is a high efficiency even in a high output current region. In this paper, the operation analysis and steady-state characteristics are described in detail for a double boost type switched capacitor converter, and they are confirmed by experiments. The output voltage control method by changing the switching frequency is presented and analyzed by simulation
Starting Page	1966
Ending Page	1971
File Size	604930
Page Count	6
File Format	PDF
ISBN	0780390334
DOI	10.1109/PESC.2005.1581901
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-16
Publisher Place	Brazil
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resonance Capacitors Switching converters Diodes Switches Topology Steady-state Voltage control Switching frequency Analytical models
Content Type	Text
Resource Type	Article

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