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Proceedings Paper

Power conditioning for low-voltage piezoelectric stack energy harvesters
Author(s): E. Skow; S. Leadenham; K. A. Cunefare; A. Erturk
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Paper Abstract

Low-power vibration and acoustic energy harvesting scenarios typically require a storage component to be charged to enable wireless sensor networks, which necessitates power conditioning of the AC output. Piezoelectric beam-type bending mode energy harvesters or other devices that operate using a piezoelectric element at resonance produce high voltage levels, for which AC-DC converters and step-down DC-DC converters have been previously investigated. However, for piezoelectric stack energy harvesters operating off-resonance and producing low voltage outputs, a step-up circuit is required for power conditioning, such as seen in electromagnetic vibration energy scavengers, RF communications, and MEMS harvesters. This paper theoretically and experimentally investigates power conditioning of a low-voltage piezoelectric stack energy harvester.

Paper Details

Date Published: 15 April 2016
PDF: 9 pages
Proc. SPIE 9799, Active and Passive Smart Structures and Integrated Systems 2016, 97990P (15 April 2016); doi: 10.1117/12.2219211
Show Author Affiliations
E. Skow, Georgia Institute of Technology (United States)
S. Leadenham, Georgia Institute of Technology (United States)
K. A. Cunefare, Georgia Institute of Technology (United States)
A. Erturk, Georgia Institute of Technology (United States)


Published in SPIE Proceedings Vol. 9799:
Active and Passive Smart Structures and Integrated Systems 2016
Gyuhae Park, Editor(s)

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