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

Qingquan Tang; Bo Li; Dariusz Czarkowski; Adrian Ioinovici

doi:10.1109/ISCAS.2011.5937823

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

Qingquan Tang, Bo Li, Dariusz Czarkowski, Adrian Ioinovici

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English (US)
Title of host publication	2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011
Pages	1355-1358
Number of pages	4
DOIs	https://doi.org/10.1109/ISCAS.2011.5937823
State	Published - 2011
Event	2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011 - Rio de Janeiro, Brazil Duration: May 15 2011 → May 18 2011

Publication series

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

Other

Other	2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011
Country	Brazil
City	Rio de Janeiro
Period	5/15/11 → 5/18/11

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/ISCAS.2011.5937823

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Switched-capacitor based step-up converter for alternative energy applications. / Tang, Qingquan; Li, Bo; Czarkowski, Dariusz; Ioinovici, Adrian.

2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011. 2011. p. 1355-1358 5937823 (Proceedings - IEEE International Symposium on Circuits and Systems).

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

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., 5937823, Proceedings - IEEE International Symposium on Circuits and Systems, pp. 1355-1358, 2011 IEEE International Symposium of Circuits and Systems, ISCAS 2011, Rio de Janeiro, Brazil, 5/15/11. https://doi.org/10.1109/ISCAS.2011.5937823

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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.",

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AB - 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.

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