Switched-capacitor based step-up converter for alternative energy applications

Qingquan Tang, Bo Li, Dariusz Czarkowski, Adrian Ioinovici

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A switched-capacitor (SC) circuit and a resonant inductor are integrated with a boost converter to create a conversion system designed to be used primarily with fuel cells or photovoltaic arrays. A very large dc voltage gain even at high load, continuous input current, and soft-switching of all switches are obtained. A resonance process is used to boost the output voltage of the SC circuit, i.e., a resonant voltage peak becomes a useful phenomenon that creates no undesired over-voltage stresses. A detailed steady-state analysis allows for a trade-off design of the system elements for maximizing the energy processing efficiency. Experimental results of a 22V/100V, 250 W prototype confirm the expected performance of the proposed circuit.

Original languageEnglish (US)
Title of host publication2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011
Pages1355-1358
Number of pages4
DOIs
StatePublished - 2011
Event2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011 - Rio de Janeiro, Brazil
Duration: May 15 2011May 18 2011

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Other

Other2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011
CountryBrazil
CityRio de Janeiro
Period5/15/115/18/11

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Tang, Q., Li, B., Czarkowski, D., & Ioinovici, A. (2011). Switched-capacitor based step-up converter for alternative energy applications. In 2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011 (pp. 1355-1358). [5937823] (Proceedings - IEEE International Symposium on Circuits and Systems). https://doi.org/10.1109/ISCAS.2011.5937823