Switched-mode impedance synthesis for electrical tuning of a vibration energy harvester

J. A. Bowden*, S. G. Burrow, L. R. Clare

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

Switched-mode power circuits are able to efficiently synthesise a variable complex load impedance that can tune a vibration energy harvester, whilst also providing rectification and feeding the harvested energy into a DC store. The electrical tuning system presented in this paper is based upon a boost rectifier configured as a variable power factor converter. Its performance is benchmarked against a more basic resistance emulator where it is demonstrated that electrical tuning provides an increase in power bandwidth of over three times. The paper describes the experimental results of electrical tuning in some detail and elucidates the design challenges for these systems.

Original languageEnglish
Title of host publication13TH INTERNATIONAL CONFERENCE ON MICRO AND NANOTECHNOLOGY FOR POWER GENERATION AND ENERGY CONVERSION APPLICATIONS (POWERMEMS 2013)
Place of PublicationBRISTOL
PublisherDeutsche Physikalische Gesellschaft & IOP Publishing Ltd
Number of pages5
DOIs
Publication statusPublished - 2013
Event13th International Conference on Micro- and Nano-Technology for Power Generation and Energy Conversion Applications (PowerMEMS) - London, United Kingdom
Duration: 3 Dec 20136 Dec 2013

Publication series

NameJournal of Physics Conference Series
PublisherIOP PUBLISHING LTD
Volume476
ISSN (Print)1742-6588

Conference

Conference13th International Conference on Micro- and Nano-Technology for Power Generation and Energy Conversion Applications (PowerMEMS)
CountryUnited Kingdom
Period3/12/136/12/13

Cite this