Torsional Electromagnetic Vibrational Energy Harvester Based on Stacked Flexible Coils

Xinyi Wang, Jiaxing Li, Chenyuan Zhou, Kai Tao, Dayong Qiao, Yunjia Li

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

3 Scopus citations

Abstract

In this work, we report on an electromagnetic vibrational energy harvester (EVEH), based on the torsional movement of a permanent magnet over a stack of flexible planar coils. The disc magnet is glued to a silicon plate suspended by straight torsional springs. With a size of 1 cm×1 cm×1.08 cm, the proposed EVEH is capable of generating an open-circuit peak-to-peak voltage of 138.9 mV and a power of 4.6 μW, under a sinusoidal excitation of ±0.5g and frequency of 104 Hz. At elevated acceleration levels, the maximum peak-to-peak output voltage is 185.2 mV under the acceleration of 7g (±3.5g).

Original languageEnglish
Title of host publicationIECON 2021 - 47th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE Computer Society
ISBN (Electronic)9781665435543
DOIs
StatePublished - 13 Oct 2021
Event47th Annual Conference of the IEEE Industrial Electronics Society, IECON 2021 - Toronto, Canada
Duration: 13 Oct 202116 Oct 2021

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
Volume2021-October
ISSN (Print)2162-4704
ISSN (Electronic)2577-1647

Conference

Conference47th Annual Conference of the IEEE Industrial Electronics Society, IECON 2021
Country/TerritoryCanada
CityToronto
Period13/10/2116/10/21

Keywords

  • electromagnetic
  • energy harvester
  • MEMS
  • planar coil

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