A Design Procedure for Wideband Micropower Generators

Author

Soliman, Mostafa S M ; Abdel-Rahman, Eihab M. ; El-Saadany, Ehab F. ; Mansour, Raafat R.

Author_Institution

Dept. of Syst. Design Eng., Univ. of Waterloo, Waterloo, ON, Canada

Volume

18

Issue

6

fYear

2009

Firstpage

1288

Lastpage

1299

Abstract

We developed a design procedure for wideband electromagnetic micropower generators (WMPGs) based on piecewise-linear oscillators. We find that the dominant factors in the performance of this class of WMPGs are the stiffness ratio of the oscillator and the velocity of the moving structure at the point of impact with the stopper. We also find that designing these WMPGs requires additional steps beyond those required in the design of regular MPGs. The additional steps match the output power and bandwidth of the WMPG to the probability density function of environmental vibrations. While these steps add complexity to the design of WMPGs, they are shown to significantly increase harvested energy.

Keywords

density functional theory; electric generators; oscillators; piecewise linear techniques; probability density function; wideband electromagnetic micropower generators piecewise-linear oscillators; wideband micropower generators; Electromagnetic; energy harvesting; micropower generation; wideband;

fLanguage

English

Journal_Title

Microelectromechanical Systems, Journal of

Publisher

ieee

ISSN

1057-7157

Type

jour

DOI

10.1109/JMEMS.2009.2031695

Filename

5299263