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Timepiece of electronic circuit including regulating mechanical movement

A timepiece, mechanical technique used in the field of timepieces that includes electronic circuits that regulate mechanical movement

Inactive Publication Date: 2003-07-09
ASULAB SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the threshold of the comparator must satisfy two contradictory conditions

Method used

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  • Timepiece of electronic circuit including regulating mechanical movement
  • Timepiece of electronic circuit including regulating mechanical movement
  • Timepiece of electronic circuit including regulating mechanical movement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Fig. 5 schematically shows the electromechanical part of the timepiece of the present invention. It includes a mechanical energy source 2 composed of a coil spring, which is coupled with a time display device 6 such as a pointer on the surface through a gear train 4 represented by a dotted line, and the mechanical energy source 2 is also connected to the rotor 3a of the electric energy generator 3 Coupled. The generator 3 also includes an induction coil 3b and the rotor 3a includes a dipole magnet generally indicated by an arrow. This part is not described in detail herein, because it can be implemented in various well-known ways for those skilled in the art.

[0032] During operation, the mechanical energy source 2 rotationally drives the rotor 3a, and an AC voltage Ug appears on the terminals B0, B1 of the coil 3b. In this case, the terminal B0 is regarded as a reference terminal having a reference voltage V0. Referring to the reference voltage V0=0 volts at termin...

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Abstract

The timepiece comprises an electrical energy generator comprising a rotor and means for supplying said electrical energy in response to rotation of said rotor, a source of mechanical energy, measuring means coupled to said generator for producing measurement pulses of the angular frequency of an alternating voltage supplied by the generator, braking means responsive to a braking command signal for applying a braking torque to said rotor, an electronic circuit comprising reference means for producing a reference signal, slaving control means arranged to control said braking means when said measurement pulses are ahead with respect to the reference signal and make the reference signal adjust the rotor and the angular frequency, and forbidding means in synchronization with measurement pulses and proventing pulses from splitting.

Description

technical field [0001] The invention relates to a timepiece comprising a generator of electrical energy comprising a rotor and means for supplying electrical energy in response to the rotation of the rotor, regulated by an electronic circuit comprising braking means for the rotor of the generator. Background technique [0002] Typically in these timepieces a power source drives a power generator to power the electronic circuits. The rotor of the generator itself can be braked by an electronic circuit to regulate the mechanical movement by, for example, making it track the frequency of the quartz. The importance of these timepieces is to obtain very precise movements regulated by quartz etc. without the need for batteries or accumulators with limited working life. [0003] Such a timepiece is described, for example, in US-A-3,937,001, in which the angular frequency of the alternating voltage of the generator is compared with the frequency of quartz. In this arrangement, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G04B17/00G04C3/00G04C10/00G04C10/04
CPCG04C3/00G04C10/00
Inventor E·伯纳斯康尼
Owner ASULAB SA
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