JPS57144482A - Circuit for timepiece with load compensating function - Google Patents
Circuit for timepiece with load compensating functionInfo
- Publication number
- JPS57144482A JPS57144482A JP3010281A JP3010281A JPS57144482A JP S57144482 A JPS57144482 A JP S57144482A JP 3010281 A JP3010281 A JP 3010281A JP 3010281 A JP3010281 A JP 3010281A JP S57144482 A JPS57144482 A JP S57144482A
- Authority
- JP
- Japan
- Prior art keywords
- output
- circuit
- motor
- inverter
- load
- 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.)
- Granted
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
- G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Control Of Stepping Motors (AREA)
Abstract
PURPOSE:To obtain a circuit for electronic timepieces of high reliability of inspection results which permits easy inspection in the absence of load in an electronic timepiece provided with a step motor, by providing a mimic load circuit in an integrated circuit. CONSTITUTION:When the potential at a control terminal C is L, and no motor coil is connected to output terminals A, B, a transistor 22 is turned on by the timing signal detecting the revolutions of the motor, by which the output terminl B is held L. Therefore, the output of an inverter 27 is held H, and the output of an inverter 28 assumes H, then a load state detecting circuit performs detection operation as if the motor did not run normally, thereby operating an output control circuit. On the other hand, when the potential of the terminal C is H, the output of the inverter 28 goes to L, and the load state detecting circuit performs detection operation as if the motor 4 ran normally, thereby operating the output control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3010281A JPS57144482A (en) | 1981-03-03 | 1981-03-03 | Circuit for timepiece with load compensating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3010281A JPS57144482A (en) | 1981-03-03 | 1981-03-03 | Circuit for timepiece with load compensating function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57144482A true JPS57144482A (en) | 1982-09-07 |
| JPH0119112B2 JPH0119112B2 (en) | 1989-04-10 |
Family
ID=12294409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3010281A Granted JPS57144482A (en) | 1981-03-03 | 1981-03-03 | Circuit for timepiece with load compensating function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57144482A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7127903B1 (en) * | 2021-06-04 | 2022-08-30 | 株式会社コナミアミューズメント | Game system, computer program used therefor, and control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS522571A (en) * | 1975-06-24 | 1977-01-10 | Citizen Watch Co Ltd | Intergrated circuit of electronic alarm watch |
| JPS52113260A (en) * | 1975-12-23 | 1977-09-22 | Ebauches Sa | Electronic clock |
| JPS5475767U (en) * | 1977-11-09 | 1979-05-29 | ||
| JPS55122180A (en) * | 1979-03-16 | 1980-09-19 | Citizen Watch Co Ltd | Driving circuit for pulse motor of timepiece |
-
1981
- 1981-03-03 JP JP3010281A patent/JPS57144482A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS522571A (en) * | 1975-06-24 | 1977-01-10 | Citizen Watch Co Ltd | Intergrated circuit of electronic alarm watch |
| JPS52113260A (en) * | 1975-12-23 | 1977-09-22 | Ebauches Sa | Electronic clock |
| JPS5475767U (en) * | 1977-11-09 | 1979-05-29 | ||
| JPS55122180A (en) * | 1979-03-16 | 1980-09-19 | Citizen Watch Co Ltd | Driving circuit for pulse motor of timepiece |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0119112B2 (en) | 1989-04-10 |
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