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http://dx.doi.org/10.5369/JSST.2012.21.4.298

Design and Fabrication of a Low Frequency Vibration Driven High-Efficiency Electromagnetic Energy Harvester  

Lee, Byung-Chul (School of Electrical Engineering, University of Ulsan)
Chung, Gwiy-Sang (School of Electrical Engineering, University of Ulsan)
Publication Information
Journal of Sensor Science and Technology / v.21, no.4, 2012 , pp. 298-302 More about this Journal
Abstract
This paper describes the design and fabrication of a low frequency vibration driven high-efficiency electromagnetic energy harvester based on FR(Flame Resistance)-4 spring which converts mechanical energy into useful electrical power. The fabricated generator consists of a vertically polarized NdFeB permanent magnet attached to the center of spring and a planar type copper coil which has higher efficiency compare with cylindrical type coil. ANSYS finite analysis and Matlab were used to determine the resonance frequency and output power. The generator is capable of producing up to 1.36 $V_{pp}$ at 9 Hz, which has the maximum power of 639 ${\mu}W$ with a load resistance of $3.25k{\Omega}$.
Keywords
Energy Harvester; Electromagnetic; Vibration; FR-4;
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Times Cited By KSCI : 2  (Citation Analysis)
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