GB1181185A - Circuit for Stabilizing the Amplitude in a Directly Driven Mechanical Oscillatory System - Google Patents
Circuit for Stabilizing the Amplitude in a Directly Driven Mechanical Oscillatory SystemInfo
- Publication number
- GB1181185A GB1181185A GB36291/68A GB3629168A GB1181185A GB 1181185 A GB1181185 A GB 1181185A GB 36291/68 A GB36291/68 A GB 36291/68A GB 3629168 A GB3629168 A GB 3629168A GB 1181185 A GB1181185 A GB 1181185A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- driving coil
- circuit
- amplitude
- stabilizing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000000087 stabilizing effect Effects 0.000 title abstract 2
- 230000003534 oscillatory effect Effects 0.000 title 1
- 230000010355 oscillation Effects 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
- G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
- G04C3/065—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits
- G04C3/067—Driving circuits with distinct detecting and driving coils
- G04C3/068—Driving circuits with distinct detecting and driving coils provided with automatic control
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Abstract
1,181,185. Transistor electro-mechanical oscillators. KIENZLE UHRENFABRIKEN G.m.b.H. 30 July, 1968 [22 Aug., 1967], No. 36291/68. Heading H3T. [Also in Division G3] An electro-mechanical oscillator of the type maintained in oscillation by a transistor 1 having a driving coil 4 connected to its collector and a pick-up coil 3 connected to its base, more particularly for a clock, has an amplitude stabilizing transistor 2 connected with its emitter-collector circuit in series with the driving coil and first transistor and its base-emitter circuit connected through a diode 6 to the driving coil. Excessive swing of the mechanical oscillator induces a sufficient voltage in the driving coil 4 (or part 4<SP>11</SP> thereof) to overcome the threshold of diode 6 and so increase the resistance of transistor 2. Increase of supply voltage also increases the resistance of transistor 2; 7 and 8 provide a starting bias and 9 suppresses high-frequency oscillations. The opposite conductivity type transistors may be used (Fig. 2, not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19671673765 DE1673765B2 (en) | 1967-08-22 | 1967-08-22 | CIRCUIT TO STABILIZE THE AMPLITUDE IN A DIRECTLY DRIVEN VIBRATION SYSTEM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1181185A true GB1181185A (en) | 1970-02-11 |
Family
ID=5686570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB36291/68A Expired GB1181185A (en) | 1967-08-22 | 1968-07-30 | Circuit for Stabilizing the Amplitude in a Directly Driven Mechanical Oscillatory System |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3561208A (en) |
| FR (1) | FR1576259A (en) |
| GB (1) | GB1181185A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2137813C3 (en) * | 1971-07-28 | 1978-04-20 | Gebrueder Junghans Gmbh, 7230 Schramberg | Circuit arrangement for driving a gear folder oscillator of a time-keeping device |
-
1968
- 1968-07-30 GB GB36291/68A patent/GB1181185A/en not_active Expired
- 1968-08-14 FR FR1576259D patent/FR1576259A/fr not_active Expired
- 1968-08-19 US US753458A patent/US3561208A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR1576259A (en) | 1969-07-25 |
| US3561208A (en) | 1971-02-09 |
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