| 发明名称 |
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| 摘要 |
An electronically regulated watch movement comprising a time-wheel mechanism driven by a drive, a generator being coupled to the drive via at least a portion of the time-wheel mechanism and with substantial gear reduction. The generator includes a rotor with magnets and coils for producing a.c. voltage at a frequency of operation FG. An electronic regulating circuit is connected to the generator and includes an oscillator for producing a precise reference frequency FR and a comparator having inputs receiving frequencies FR and FG to compare the same. A power source is connected to the comparator and the generator to supply current to the generator when FG > FR to brake the generator until FG = FR and thereby provide a regulated operation of the time-wheel mechanism. |
| 申请公布号 |
DE2357244(C3) |
申请公布日期 |
1979.10.25 |
| 申请号 |
DE19732357244 |
申请日期 |
1973.11.16 |
| 申请人 |
EBAUCHES S.A., NEUENBURG (SCHWEIZ) |
发明人 |
BERNEY, JEAN-CLAUDE, LAUSANNE (SCHWEIZ) |
| 分类号 |
G04C3/00;G04B17/00;G04C3/06;G04C10/00;G04C11/08;(IPC1-7):04C11/00 |
主分类号 |
G04C3/00 |
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