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Communication dans un congrès

Resonant frequency tuning of piezoelectric energy harvesters thanks to electrical interfaces

Abstract : In this presentation, we describe electrical interfaces able to tune the resonant frequency of piezoelectric energy harvesters, thanks to the inverse piezoelectric effect. We propose an analysis of the influences of the electrical interface on the dynamics of the harvester, and show how these influences might be used to both optimize the harvested power and tune the resonant frequency of the system. Finally, we present a self-powered integrated circuit that makes use of this effect in order to harvest energy from a piezoelectric energy harvester while adjusting its dynamics in real-time. The total power consumption of our circuit lies around 1µW, its end-to-end efficiency is 94%, and it is able to adjust the resonant frequency of a highly coupled harvester from 49Hz to 60Hz. This makes our circuit a promising solution for extracting energy from piezoelectric energy harvesters while improving their robustness to aging and environmental changes thanks to its frequency tuning ability.
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Communication dans un congrès
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https://hal.archives-ouvertes.fr/hal-03258908
Contributeur : Adrien Morel Connectez-vous pour contacter le contributeur
Soumis le : samedi 12 juin 2021 - 08:29:36
Dernière modification le : samedi 18 septembre 2021 - 15:30:01
Archivage à long terme le : : lundi 13 septembre 2021 - 18:05:42

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Morel_ICAEHT.pdf
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  • HAL Id : hal-03258908, version 1

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Adrien Morel, Gaël Pillonnet, Adrien Badel. Resonant frequency tuning of piezoelectric energy harvesters thanks to electrical interfaces. International Conference On Advances In Energy Harvesting Technology, Mar 2021, Virtual, France. ⟨hal-03258908⟩

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