Commissariat a L'energie Atomique Et Aux Energies Alternatives

Université Savoie Mont Blanc

Nicolas Goux

Franck Badets

Gaël Pillonnet

Adrien Morel

Adrien Badel

A device for recovering or dampening vibratory energy from a mechanical resonator, comprising:

Device for recovering or damping the vibratory energy of a resonant mechanical element

A bandpass filter configured to receive a temporally modulated periodic input signal Vin(t), and to deliver an output signal Vout(t), and includes, in combination: a phase comparator configured to receive, on a first input, the temporally modulated periodic input signal Vin(t) as first signal, and to generate an output signal with a variable duty cycle; coupled to an injection-locked oscillator configured to receive as input, the output signal from the phase comparator, and to generate a signal Vr(t) that is phase-offset with respect to the output signal from the phase comparator; the phase-offset signal being applied to a second input of the phase comparator as second input signal; and the output signal from the phase comparator being the output signal Vout(t) from the bandpass filter and being representative of the phase difference between the two input signals Vin(t) and Vr(t).

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Grenoble, France

Nicolas Goux