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Proceedings Paper

The influence of power harvesting circuits on energy harvesting performance
Author(s): D. Dane Quinn; Stephen G. Burrow; David A. W. Barton
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Paper Abstract

We consider the performance of a vibration based energy harvester with realistic topologies for the electrical circuit, including power conditioning through a rectifier. Specifically we apply a novel perturbation approach to describe the time-varying power harvested in the system, including a rectifier in the circuitry. This approach considers the full electromechanical coupling between the mechanical and electrical components, including the amplitude and phase of the mechanical response. The resulting analysis is able to describe the behavior of the system as the mechanical response is detuned from resonance by the electrical load. In addition, the charging of the circuit over time is also captured by the analysis. Finally, the analytical results are compared against the numerical simulations of the original equations of motion to verify the analytical approach.

Paper Details

Date Published: 9 April 2010
PDF: 9 pages
Proc. SPIE 7643, Active and Passive Smart Structures and Integrated Systems 2010, 76430W (9 April 2010); doi: 10.1117/12.848926
Show Author Affiliations
D. Dane Quinn, The Univ. of Akron (United States)
Stephen G. Burrow, Univ. of Bristol (United Kingdom)
David A. W. Barton, Univ. of Bristol (United Kingdom)

Published in SPIE Proceedings Vol. 7643:
Active and Passive Smart Structures and Integrated Systems 2010
Mehrdad N. Ghasemi-Nejhad, Editor(s)

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