FR2220919B1 - - Google Patents
Info
- Publication number
- FR2220919B1 FR2220919B1 FR7407068A FR7407068A FR2220919B1 FR 2220919 B1 FR2220919 B1 FR 2220919B1 FR 7407068 A FR7407068 A FR 7407068A FR 7407068 A FR7407068 A FR 7407068A FR 2220919 B1 FR2220919 B1 FR 2220919B1
- Authority
- FR
- France
- 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
- G04C3/16—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating an electro-dynamic continuously rotating motor
-
- 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
- G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
- H02P8/14—Arrangements for controlling speed or speed and torque
- H02P8/16—Reducing energy dissipated or supplied
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
- H02P8/32—Reducing overshoot or oscillation, e.g. damping
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromechanical Clocks (AREA)
- Control Of Stepping Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2610273A JPS6024680B2 (ja) | 1973-03-07 | 1973-03-07 | 時計用ステツプモ−タの駆動回路 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2220919A1 FR2220919A1 (de) | 1974-10-04 |
| FR2220919B1 true FR2220919B1 (de) | 1978-09-29 |
Family
ID=12184218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7407068A Expired FR2220919B1 (de) | 1973-03-07 | 1974-03-01 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS6024680B2 (de) |
| CH (2) | CH323674A4 (de) |
| DE (1) | DE2409925C2 (de) |
| FR (1) | FR2220919B1 (de) |
| GB (1) | GB1434682A (de) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5345575A (en) * | 1976-10-06 | 1978-04-24 | Seiko Epson Corp | Electronic wristwatch |
| JPS5370876A (en) * | 1976-12-07 | 1978-06-23 | Seiko Instr & Electronics Ltd | Electronic wristwatch |
| JPS53114467A (en) * | 1977-03-16 | 1978-10-05 | Seiko Instr & Electronics Ltd | Electronic watch |
| JPS53132384A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
| JPS53132386A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
| JPS53132383A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch circuit |
| JPS53132381A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
| JPS53132385A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
| JPS53132382A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
| JPS53136870A (en) * | 1977-04-23 | 1978-11-29 | Seiko Instr & Electronics Ltd | Electronic watch |
| JPS5477169A (en) * | 1977-12-02 | 1979-06-20 | Seiko Instr & Electronics Ltd | Electronic watch |
| JPS55147381A (en) * | 1979-05-04 | 1980-11-17 | Seiko Instr & Electronics Ltd | Detector for electronic watch |
| FR2459579A1 (fr) * | 1979-06-21 | 1981-01-09 | Suisse Horlogerie | Detecteur d'avance d'un moteur pas a pas |
| CH640999B (fr) * | 1980-08-25 | Ebauchesfabrik Eta Ag | Procede et dispositif de commande d'une moteur pas a pas de piece d'horlogerie electronique. | |
| DE3043634A1 (de) * | 1980-11-19 | 1982-06-03 | Eurosil GmbH, 8000 München | Polwender-treiberschaltung, fuer einen schrittmotor, insbesondere fuer uhren |
| CH644989GA3 (de) * | 1981-03-18 | 1984-09-14 |
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1973
- 1973-03-07 JP JP2610273A patent/JPS6024680B2/ja not_active Expired
-
1974
- 1974-02-22 GB GB823574A patent/GB1434682A/en not_active Expired
- 1974-03-01 DE DE19742409925 patent/DE2409925C2/de not_active Expired
- 1974-03-01 FR FR7407068A patent/FR2220919B1/fr not_active Expired
- 1974-03-07 CH CH323674D patent/CH323674A4/xx unknown
- 1974-03-07 CH CH323674A patent/CH576164B5/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2409925C2 (de) | 1982-09-16 |
| DE2409925A1 (de) | 1974-09-12 |
| FR2220919A1 (de) | 1974-10-04 |
| CH576164B5 (de) | 1976-05-31 |
| JPS49114020A (de) | 1974-10-31 |
| GB1434682A (en) | 1976-05-05 |
| CH323674A4 (de) | 1975-12-31 |
| JPS6024680B2 (ja) | 1985-06-14 |