Low frequency properties of micro power generator using a gold electroplated coil and magnet

Authors
Kim, S.-I.Lee, D.H.Lee, Y.P.Chang, Y.S.Park, M.-C.
Issue Date
2008-03
Publisher
ELSEVIER SCIENCE BV
Citation
Current Applied Physics, v.8, no.2, pp.138 - 141
Abstract
Micro power generating devices were fabricated by using a gold electroplated coil and a permanent magnet. The electrical power was generated when the magnet reciprocated on the fabricated electroplated coil. The output power was increased as a function of vibration frequency. A measurement system, which convert a rotational motion of a motor into a linear motion, was designed and fabricated. The purpose of this work is to develop the micro power generating devices which convert the ambient vibration or oscillating energy into useful electrical energy. With changing vibration frequency from 0.5 to 8 Hz, the generated power increased linearly. The generated voltage was 106 mV at 3 Hz and 198 mV at 6 Hz. After using the step up circuit, the measured voltage was 81 mV at 3 Hz and 235 mV at 6 Hz. From above the frequency of about 4.5 Hz, the gain obtained by using the quadrupler circuit becomes larger than the loss without using that circuit. ? 2007.
Keywords
Electric coils; Electric potential; Electroplating; Magnets; MEMS; Vibration analysis; Ambient vibrations; Micro powers; Oscillating energy; Quadrupler circuits; Electric power systems; Electric coils; Electric potential; Electroplating; Magnets; MEMS; Vibration analysis; Ambient vibrations; Micro powers; Oscillating energy; Quadrupler circuits; Electric power systems; Coil; Electroplating; MEMS; Micro power generator
ISSN
1567-1739
URI
https://pubs.kist.re.kr/handle/201004/133717
DOI
10.1016/j.cap.2007.06.005
Appears in Collections:
KIST Article > 2008
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