OREGON STATE UNIVERSITY

You are here

A Multiple-Input Boost Converter for Low-Power Energy Harvesting

TitleA Multiple-Input Boost Converter for Low-Power Energy Harvesting
Publication TypeJournal Article
Year of Publication2011
AuthorsShi, C., B. Miller, K. Mayaram, and T. S. Fiez
JournalIEEE Transactions on Circuits and Systems II: Express Briefs
Volume58
Issue12
Pagination827 - 831
Date Published12/2011
ISSN1549-7747
Abstract

In this paper, a component efficient multiple-input boost converter is proposed to extract power from multiple low-power energy harvesting sources. The time-multiplexed operation of the proposed converter enables sharing of the power stage between different input sources, leading to a reduced component count. Combined with a novel digital control method and a universal tracking algorithm, maximum power is automatically extracted for all the input sources. A dual-input prototype built with off-the-shelf components validates the overall strategy with commercially available energy transducers. A tracking efficiency of more than 97.5% is demonstrated.

DOI10.1109/TCSII.2011.2173974
Short TitleIEEE Trans. Circuits Syst. II