Resonant switched capacitor converter with high efficiency

Masahito Shoyama; Toshiyuki Naka; Tamotsu Ninomiya

doi:10.1109/PESC.2004.1355143

Resonant switched capacitor converter with high efficiency

Masahito Shoyama, Toshiyuki Naka, Tamotsu Ninomiya

Applied Energy Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

53 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. This paper presents 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. The operation analysis and steady-state characteristics are described in detail for a half buck type switched capacitor converter, and they are confirmed by experiments.

Original language	English
Title of host publication	2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04
Pages	3780-3786
Number of pages	7
DOIs	https://doi.org/10.1109/PESC.2004.1355143
Publication status	Published - Nov 29 2004
Event	2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04 - Aachen, Germany Duration: Jun 20 2004 → Jun 25 2004

Publication series

Name	PESC Record - IEEE Annual Power Electronics Specialists Conference
Volume	5
ISSN (Print)	0275-9306

Other

Other	2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04
Country	Germany
City	Aachen
Period	6/20/04 → 6/25/04

All Science Journal Classification (ASJC) codes

Modelling and Simulation
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1109/PESC.2004.1355143

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Resonant switched capacitor converter with high efficiency. / Shoyama, Masahito; Naka, Toshiyuki; Ninomiya, Tamotsu.

2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04. 2004. p. 3780-3786 (PESC Record - IEEE Annual Power Electronics Specialists Conference; Vol. 5).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Shoyama, M, Naka, T & Ninomiya, T 2004, Resonant switched capacitor converter with high efficiency. in 2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04. PESC Record - IEEE Annual Power Electronics Specialists Conference, vol. 5, pp. 3780-3786, 2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04, Aachen, Germany, 6/20/04. https://doi.org/10.1109/PESC.2004.1355143

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