FR2465358B1 - - Google Patents
Info
- Publication number
- FR2465358B1 FR2465358B1 FR8018856A FR8018856A FR2465358B1 FR 2465358 B1 FR2465358 B1 FR 2465358B1 FR 8018856 A FR8018856 A FR 8018856A FR 8018856 A FR8018856 A FR 8018856A FR 2465358 B1 FR2465358 B1 FR 2465358B1
- Authority
- FR
- France
- Prior art keywords
- transistors
- motor
- motors
- pairs
- hand
- 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
Classifications
-
- 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
- G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
- G04C3/146—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor incorporating two or more stepping motors or rotors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Stepping Motors (AREA)
- Electromechanical Clocks (AREA)
Abstract
Apparatus for controlling an electronic time piece having two motors M1, M2 comprises only six power transistors T13 to T18 divided into pairs of transistors of opposite conductivity type, the transistors of each pair being connected in series with each other in a respective switching circuit connected between the supply terminals (+,-). The first motor M1 is connected between the middle connection points of the pairs T13/T14 and T17/T18 and the second motor M2 between the middle connection points of the pairs T17/T18 and T15/T16. The pair of transistors T17/T18 is thus common to the two motors. The circuit provides alternating pulses to each motor M1, M2 or may be used to energize two separate windings of a single motor, for reverse and forward drive. If two motors are used, one may drive a seconds hand and a minutes hand, and the other an hours hand and a date indicator. Opposite conductivity type FETs may be used instead of bipolar transistors.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH809979A CH632128B (en) | 1979-09-07 | 1979-09-07 | CONTROL DEVICE FOR TWO STEP MOTORS IN AN ELECTRONIC CLOCK PART. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2465358A1 FR2465358A1 (en) | 1981-03-20 |
| FR2465358B1 true FR2465358B1 (en) | 1982-12-10 |
Family
ID=4335141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8018856A Granted FR2465358A1 (en) | 1979-09-07 | 1980-08-29 | DEVICE FOR CONTROLLING TWO STEP-BY-STEP MOTORS IN AN ELECTRONIC WATCH WORKPIECE |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5646697A (en) |
| CH (1) | CH632128B (en) |
| DE (1) | DE3032838A1 (en) |
| FR (1) | FR2465358A1 (en) |
| GB (1) | GB2058414B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0048217A1 (en) * | 1980-09-12 | 1982-03-24 | Compagnie des Montres Longines, Francillon S.A. | Electronic timepiece |
| JPS592593A (en) * | 1982-06-25 | 1984-01-09 | Sony Corp | Normal/reverse circuit for plural motors |
| CH650125GA3 (en) * | 1983-06-29 | 1985-07-15 | ||
| DE69940968D1 (en) * | 1998-12-14 | 2009-07-23 | Seiko Epson Corp | ELECTRONIC DEVICE AND METHOD FOR CONTROLLING THIS |
| DE10007201A1 (en) | 2000-02-17 | 2001-08-23 | Zeiss Carl Jena Gmbh | Synchronous control of several stepper motors, involves triggering different step lengths with one period of base frequency for different stepper motors with specifically associated step lengths |
| US6914855B2 (en) | 2002-09-27 | 2005-07-05 | Timex Group B.V. | Circuit for driving motor coils in stepping motors |
| CN102263535A (en) * | 2010-05-28 | 2011-11-30 | 飞思卡尔半导体公司 | Stepper motor controller and stepper motor control method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1451359A (en) * | 1973-11-30 | 1976-09-29 | Citizen Watch Co Ltd | Pulse motor driven circuit |
| JPS52125712A (en) * | 1976-04-13 | 1977-10-21 | Sanyo Electric Co Ltd | Control circuit of electric motor |
| CH613837B (en) * | 1977-06-14 | Suisse Horlogerie | ELECTRONIC WATCH WITH MECHANICAL DISPLAY. | |
| SE7807961L (en) * | 1977-07-20 | 1979-01-21 | Janome Sewing Machine Co Ltd | DRIVING DEVICE FOR SEWING MACHINE PULSE ENGINE |
-
1979
- 1979-09-07 CH CH809979A patent/CH632128B/en unknown
-
1980
- 1980-08-29 FR FR8018856A patent/FR2465358A1/en active Granted
- 1980-08-30 DE DE19803032838 patent/DE3032838A1/en not_active Withdrawn
- 1980-09-01 GB GB8028202A patent/GB2058414B/en not_active Expired
- 1980-09-05 JP JP12249680A patent/JPS5646697A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5646697A (en) | 1981-04-27 |
| DE3032838A1 (en) | 1981-04-02 |
| GB2058414B (en) | 1983-04-13 |
| CH632128GA3 (en) | 1982-09-30 |
| FR2465358A1 (en) | 1981-03-20 |
| CH632128B (en) | |
| GB2058414A (en) | 1981-04-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |