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Wideband capacitive energy harvester based on mechanical frequency-up conversion

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5 Author(s)
Chamanian, S. ; Dept. of Electr. & Comput. Eng., Univ. of Tabriz, Tabriz, Iran ; Bahrami, M. ; Zangabad, R.P. ; Khodaei, M.
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A novel mechanical frequency-up convertor for energy harvesting using low frequency ambient vibration based on overlapping capacitive comb has been proposed in this paper. Centrally clamped bistable beam is used to frequency-up conversion which is similar to pre-buckled structure and makes a large acceleration to induce initial displacement. We have achieved more average power from the proposed system by excitation at the low frequencies so improved power density.

Published in:

Sensors Applications Symposium (SAS), 2012 IEEE

Date of Conference:

7-9 Feb. 2012