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Development of kinetic energy harvesting systems for vehicle applications

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6 Author(s)
Phipps, A. ; SPAWAR Syst. Center Pacific, San Diego, CA, USA ; Dung Phung ; Kerber, M. ; Dick, B.
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This work demonstrates the implementation of a functional kinetic energy harvester designed to power wireless sensor electronics used in vehicular applications. The design, fabrication, and experimental characterization of a complete electrodynamic (magnetic) energy harvesting system capable of delivering in excess of 10 mW from 100 milli-g's of acceleration is presented. Unlike previous energy harvesting research, which typically focuses on individual components for proof-of-concept testing, the system implemented for this work includes the integration of a low-frequency transducer, power electronics circuitry, and a rechargeable storage element, all of which are required for a functional system. The design trade-offs, which result from the integration of these system components are examined and design rules for maximizing efficiency are given. Finally, field testing is presented, which demonstrates the ability of the system to operate over a range of different vehicle speeds.

Published in:

Sensors, 2011 IEEE

Date of Conference:

28-31 Oct. 2011