Bias-Flip Technique for Frequency Tuning of Piezo-Electric Energy Harvesting Devices
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Zhao-2013-Bias-flip technique.pdf
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476.45 KB
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Checksum (MD5)
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Author(s)
Zhao, Jianying
Ramadass, Yogesh
Ma, Jianguo
Buss, Dennis
Lang, Jeffrey H.
Date Issued
June 2013
Journal
Journal of Low Power Electronics and Applications
Publisher
MDPI AG
Citation
Zhao, Jianying, Yogesh Ramadass, Jeffrey Lang, Jianguo Ma, and Dennis Buss. “Bias-Flip Technique for Frequency Tuning of Piezo-Electric Energy Harvesting Devices.” Journal of Low Power Electronics and Applications 3, no. 2 (June 2013): 194–214.
Version
Final published version
Abstract
Devices that harvest electrical energy from mechanical vibrations have the problem that the frequency of the source vibration is often not matched to the resonant frequency of the energy harvesting device. Manufacturing tolerances make it difficult to match the Energy Harvesting Device (EHD) resonant frequency to the source vibration frequency, and the source vibration frequency may vary with time. Previous work has recognized that it is possible to tune the resonant frequency of an EHD using a tunable, reactive impedance at the output of the device. The present paper develops the theory of electrical tuning, and proposes the Bias-Flip (BF) technique, to implement this tunable, reactive impedance.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Microsystems Technology Laboratories
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.3390/jlpea3020194
