Schaltkreis zur Selbstregulierung der Schwingungsfrequenz eines schwingenden mechanischen Systems, und diesen umfassende Vorrichtung

Details

Veröffentlichungs-Nr.

EP2590035

Aktenzeichen

EP11187360

Anmeldetag

1. November 2011

Veröffentlichung

30. Dezember 2020

Erteilung

30. Dezember 2020

Rechtsraum

EP

IPC

G04C3/04G04C3/06

Abstract

The circuit (10) has a rectifier (11) for rectifying the alternating voltage (VP). An oscillator stage (15) provides a reference signal (VR). A comparison unit compares the frequency of the alternating voltage with the frequency of the reference signal. A frequency adjusting unit (18) is connected to the piezoelectric element or electro-active polymer (23) for providing a frequency adjustment signal (VA) to the piezoelectric element or polymer based on the result of the comparison by the comparison unit to regulate oscillation frequency of an oscillating mechanical system.

Anmelder

Firma

The Swatch Group Research and Development Ltd.

Land

🇨🇭 Schweiz

Fachgebiete