Title :
Wideband capacitive energy harvester based on mechanical frequency-up conversion
Author :
Chamanian, Salar ; Bahrami, Manouchehr ; Zangabad, Reza Pakdaman ; Khodaei, Mohamad ; Zarbakhsh, Payam
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Tabriz, Tabriz, Iran
Abstract :
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.
Keywords :
direct energy conversion; energy harvesting; frequency convertors; centrally clamped bistable beam; energy harvesting; frequency-up conversion; low frequency ambient vibration; low frequency excitation; mechanical frequency-up conversion; overlapping capacitive comb; power density; prebuckled structure; wideband capacitive energy harvester; Educational institutions; Electrets; Energy harvesting; Frequency conversion; Micromechanical devices; Power generation; Vibrations; capacitive comb; clamped bistable beam; energy harvesting; mechanical frequency convertor;
Conference_Titel :
Sensors Applications Symposium (SAS), 2012 IEEE
Conference_Location :
Brescia
Print_ISBN :
978-1-4577-1724-6
DOI :
10.1109/SAS.2012.6166319