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This paper presents an analysis on the effect of having different number of capacitors n in the first-stage switched-capacitor circuit of an improved hybrid switched-capacitor buck converter for high-voltage-gain conversion. Various aspects of the topology, operation, and efficiency are investigated. It is shown both analytically and experimentally that a higher n in the step-down capacitor stage does not necessarily lead to an overall improved power efficiency. A design and optimization method is thus proposed for the improved SC-buck converter.
Published in:
Circuits and Systems I: Regular Papers, IEEE Transactions on
(Volume:59
,
Issue:
5
)
Date of Publication: May 2012
- Page(s):
- 1132 - 1141
- ISSN :
- 1549-8328
- INSPEC Accession Number:
- 12711847
- Digital Object Identifier :
- 10.1109/TCSI.2012.2191313
- Product Type:
- Journals & Magazines
- Date of Publication :
- 09 April 2012
- Date of Current Version :
- 03 May 2012
- Issue Date :
- May 2012
- Sponsored by :
- IEEE Circuits and Systems Society
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