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Proceedings Paper

Hybrid energy harvesting/transmission system for embedded devices
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Paper Abstract

In most energy harvesting applications the need for a reliable long-term energy supply is essential in powering embedded sensing and control electronics. The goal of many harvesters is to extract energy from the ambient environment to power hardware; however in some applications there may be conditions in which the harvester's performance cannot meet all of the demands of the embedded electronics. One method for addressing this shortfall is to supplement harvested power through the transmission of wireless energy, a concept that has successfully been demonstrated by the authors in previous studies. In this paper we present our findings on the use of a single electromagnetic coil to harvest kinetic energy in a solenoid configuration, as well as background and directed wireless energy in the 2.4 GHz radio frequency (RF) bands commonly used in WiFi and cellular phone applications. The motivation for this study is to develop a compact energy harvester / receiver that conserves physical volume, while providing multi-modal energy harvesting capabilities. As with most hybrid systems there are performance trade-offs that must be considered when capturing energy from different physical sources. As part of this paper, many of the issues related to power transmission, physical design, and potential applications are addressed for this device.

Paper Details

Date Published: 29 March 2012
PDF: 6 pages
Proc. SPIE 8343, Industrial and Commercial Applications of Smart Structures Technologies 2012, 834307 (29 March 2012); doi: 10.1117/12.915461
Show Author Affiliations
Adam Hehr, Los Alamos National Lab. (United States)
Gyuhae Park, Los Alamos National Lab. (United States)
Kevin Farinholt, Los Alamos National Lab. (United States)

Published in SPIE Proceedings Vol. 8343:
Industrial and Commercial Applications of Smart Structures Technologies 2012
Kevin Farinholt; Steven F. Griffin, Editor(s)

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