MEMS Rotational Electret Energy Harvester for Human Motion

This paper reports the development of MEMS rotational electret energy harvester (EH) for capturing kinetic energy of human motion. Optimal design method of rotational electret EH is proposed by considering both the rate of overlapping-area-change and the parasitic capacitance. A rotational MEMS elec...

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Bibliographic Details
Published in:Journal of physics. Conference series 2015-12, Vol.660 (1), p.12052
Main Authors: Nakano, J, Komori, K, Hattori, Y, Suzuki, Y
Format: Article
Language:English
Subjects:
Ball bearings
Energy harvesting
Human motion
Kinetic energy
Parasitics (electronics)
Physics
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Summary:This paper reports the development of MEMS rotational electret energy harvester (EH) for capturing kinetic energy of human motion. Optimal design method of rotational electret EH is proposed by considering both the rate of overlapping-area-change and the parasitic capacitance. A rotational MEMS electret EH with embedded ball bearing has been successfully developed. Up to 3.6 μW has been obtained at 1 rps rotation with an early prototype.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/660/1/012052