Resonant boost switched capacitor converter with high efficiency

Masahito Shoyama, Fumitoshi Deriha, Tamotsu Ninomiya

Research output: Contribution to conferencePaper

8 Citations (Scopus)

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 some novel switched capacitor converter topologies that use a resonant operation instead of the forced charging and discharging operation. Their advantage over conventional switched capacitor converters 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.

Original languageEnglish
Pages222-226
Number of pages5
DOIs
Publication statusPublished - Dec 1 2004
EventIECON 2004 - 30th Annual Conference of IEEE Industrial Electronics Society - Busan, Korea, Republic of
Duration: Nov 2 2004Nov 6 2004

Other

OtherIECON 2004 - 30th Annual Conference of IEEE Industrial Electronics Society
CountryKorea, Republic of
CityBusan
Period11/2/0411/6/04

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All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

Shoyama, M., Deriha, F., & Ninomiya, T. (2004). Resonant boost switched capacitor converter with high efficiency. 222-226. Paper presented at IECON 2004 - 30th Annual Conference of IEEE Industrial Electronics Society, Busan, Korea, Republic of. https://doi.org/10.1109/IECON.2004.1433313