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Research Papers

The Dynamics of Embedded-Charge Microenergy Harvesting

[+] Author and Article Information
Carl V. Lutzer

School of Mathematical Sciences, Rochester Institute of Technology, Rochester, NY 14623cvlsma@rit.edu

David S. Ross

School of Mathematical Sciences, Rochester Institute of Technology, Rochester, NY 14623dsrsma@rit.edu

J. Comput. Nonlinear Dynam 5(2), 021004 (Feb 11, 2010) (9 pages) doi:10.1115/1.4000826 History: Received June 05, 2008; Revised July 24, 2009; Published February 11, 2010

The microelectronic devices that are ubiquitous these days are limited by the need for batteries. Various methods of harvesting ambient mechanical energy have been proposed and are being developed. Recently, Potter has developed a method for embedding charge, at high density, stably at the interfaces of dissimilar insulators. In this paper, we present and analyze dynamical system models that Potter and co-workers have used to optimize microenergy harvesters based on this novel technology.

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Copyright © 2010 by American Society of Mechanical Engineers
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Figures

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Figure 1

A microelectromechanical device

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Figure 2

An example basin of attraction (all parameters set to 1)

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Figure 3

Natural trajectories exit States 1 and 2 when N=0, and then travel along an elliptical path in a Q=constant plane

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Figure 4

Level curves of L with the graph of Z3+(H+h/H)Z2−σ2/2Hkε0

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Figure 5

Natural trajectories on the separatrix

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