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US 11,121,648 B2Granted
Piezoelectric generator
AssigneesCommissariat A L'energie Atomique Et Aux Energies Alternatives, Universite Savoie Mont Blanc
InventorsAdrien Badel, Pierre Gasnier, Romain Grezaud, Adrien Morel, Gaël Pillonnet
Life of this patent
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Abstract
A piezoelectric generator including: a piezoelectric element; a circuit for shorting and placing in open circuit the piezoelectric element; and an inductive converter.
Claims16
A piezoelectric generator comprising:
- a piezoelectric element;
- a switching circuit coupled to the piezoelectric element;
- an inductive converter;
- and
- a circuit for controlling the switching circuit to, sequentially:
- short the piezoelectric element;
- place the piezoelectric element in open circuit;
- and
- connect the piezoelectric element to the inductive converter.
6 more elements
A method of controlling a piezoelectric generator having a piezoelectric element capable of being excited by a mechanical object, comprising successive phases of:
- shorting the piezoelectric element;
- placing the piezoelectric element in open circuit;
- and
- transferring the charges stored during the open circuit phase to an inductive converter.
1 more element
Dependencies are inferred from the claim text.