A bridgeless buck AC-DC converter for piezoelectric energy harvesting

Yuta Kizu, Kunihisa Okano, Hirotaka Koizumi

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

Abstract

This paper proposes a bridgeless buck AC-DC converter for piezoelectric energy harvesting. A conventional circuit for this purpose consists of a full-bridge rectifier and a buck converter. The proposed circuit has the same functions as the conventional one and achieves better efficiency. In the circuit, the internal capacitance of the piezoelectric element and inductors used for the step-down operation form a resonant circuit, which plays a central role for reducing energy losses. Our experimental results show that the maximum output power of the proposed circuit is about 1.5 times higher than that of the conventional one.

Original languageEnglish
Title of host publicationProceedings of the IECON 2016 - 42nd Annual Conference of the Industrial Electronics Society
PublisherIEEE Computer Society
Pages1196-1201
Number of pages6
ISBN (Electronic)9781509034741
DOIs
Publication statusPublished - Dec 21 2016
Externally publishedYes
Event42nd Conference of the Industrial Electronics Society, IECON 2016 - Florence, Italy
Duration: Oct 24 2016Oct 27 2016

Other

Other42nd Conference of the Industrial Electronics Society, IECON 2016
CountryItaly
CityFlorence
Period10/24/1610/27/16

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Kizu, Y., Okano, K., & Koizumi, H. (2016). A bridgeless buck AC-DC converter for piezoelectric energy harvesting. In Proceedings of the IECON 2016 - 42nd Annual Conference of the Industrial Electronics Society (pp. 1196-1201). [7793292] IEEE Computer Society. https://doi.org/10.1109/IECON.2016.7793292