Electromagnetic energy harvester with an in-phase vibration bandwidth broadening technique

Shih Jui Chen, Jia Yin Wu, Shu Yu Liu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

This paper reports a duo-mode vibration structure for increasing usable bandwidth in a micromachined electromagnetic energy harvester. The energy harvester is characterized by using finite element analysis on the vibration frequency and amplitude. Since a spiral diaphragm is much more flexible than a cantilever diaphragm for a given size, a spiral is inserted in to a U-shape cantilever, forming the proposed energy harvester. By designing the coupled structure, not only the resonance frequency is reduced, but also the usable bandwidth is broadened. Experimental results show that the device generates electromotive force of 1.00 and 1.03 mV, 7.66 and 7.43 nW (into 27 ω load) at two resonance frequencies at 211 and 274 Hz, respectively.

Original languageEnglish
Title of host publicationMEMS 2014 - 27th IEEE International Conference on Micro Electro Mechanical Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages382-384
Number of pages3
ISBN (Print)9781479935086
DOIs
StatePublished - 2014
Event27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014 - San Francisco, CA, United States
Duration: 26 Jan 201430 Jan 2014

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
ISSN (Print)1084-6999

Conference

Conference27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014
Country/TerritoryUnited States
CitySan Francisco, CA
Period26/01/1430/01/14

Fingerprint

Dive into the research topics of 'Electromagnetic energy harvester with an in-phase vibration bandwidth broadening technique'. Together they form a unique fingerprint.

Cite this