An Electromagnetic Micro Power Generator for Low-Frequency Environmental Vibrations Based on the Frequency Upconversion Technique

Date

2010-02-01

Author

Sari, Ibrahim
Balkan, Raif Tuna
Külah, Haluk

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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This paper presents a microelectromechanical-system-based electromagnetic vibration-to-electrical power generator that can harvest energy from low-frequency external vibrations. The efficiency of vibration-based harvesters is proportional to excitation frequency, so the proposed generator is designed to convert low-frequency environmental vibrations to a higher frequency by employing the frequency upconversion (FupC) technique. It has been shown that the generator can effectively harvest energy from environmental vibrations of 70-150 Hz and generates 0.57-mV voltage with 0.25-nW power from a single cantilever by upconverting the input vibration frequency of 95 Hz-2 kHz. The fabricated generator size is 8.5 x 7 x 2.5 mm(3), and a total of 20 serially connected cantilevers have been used to multiply the generated voltage and power. The generator demonstrated in this paper is designed for the proof of concept, and the power and voltage levels can further be increased by increasing the number of cantilevers or coil turns. The performance of the generator is also compared with that of a samesized custom-made traditional magnet-coil-type generator and with that of a traditional generator from the literature to prove its effectiveness. [2009-0136]

Subject Keywords

Array of cantilevers, Energy harvesting, Energy scavenging, Frequency upconversion (FupC), Micro power generator

URI

https://hdl.handle.net/11511/44431

Journal

JOURNAL OF MICROELECTROMECHANICAL SYSTEMS

DOI

https://doi.org/10.1109/jmems.2009.2037245

Collections

Department of Mechanical Engineering, Article

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AN ELECTROMAGNETIC MICRO POWER GENERATOR FOR LOW FREQUENCY ENVIRONMENTAL VIBRATIONS BASED ON THE FREQUENCY UP-CONVERSION TECHNIQUE Sari, Ibrahim; Balkan, Tuna; Külah, Haluk (2009-01-29) This paper presents an electromagnetic (EM) vibration-to-electrical power generator, which can efficiently harvest energy from low-frequency external vibrations by using frequency up-conversion. The generator can effectively scavenge energy from low frequency environmental vibrations of 70-150 Hz and generates 0.57 mV voltage with 0.25 nW power from a single cantilever at a vibration frequency of 95 Hz. The fabricated generator size is 8.5 x 7 x 2.5 mm(3) and a total number of 20 serially connected cantilev...

Citation Formats

I. Sari, R. T. Balkan, and H. Külah, “An Electromagnetic Micro Power Generator for Low-Frequency Environmental Vibrations Based on the Frequency Upconversion Technique,” JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, pp. 14–27, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/44431.