Optimization of Piezoelectric Electrical Generators Powered by Random Vibrations

Details Optimization of Piezoelectric Electrical Generators Powered by Random Vibrations Optimization of Piezoelectric Electrical Generators Powered by Random Vibrations

2007-11-21

arxiv.org/abs/0711.3309v1

Dans Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS - DTIP 2006, Stresa, Lago Maggiore : Italie (2006)

Computer Science

Other Computer Science

Submitted on behalf of TIMA Editions (http://irevues.inist.fr/tima-editions)

Scientific paper

This paper compares the performances of a vibrationpowered electrical generators using PZT piezoelectric ceramic associated to two different power conditioning circuits. A new approach of the piezoelectric power conversion based on a nonlinear voltage processing is presented and implemented with a particular power conditioning circuit topology. Theoretical predictions and experimental results show that the nonlinear processing technique may increase the power harvested by a factor up to 4 compared to the Standard optimization technique. Properties of this new technique are analyzed in particular in the case of broadband, random vibrations, and compared to those of the Standard interface.

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