JPS5475518A - Electronic clock - Google Patents
Electronic clockInfo
- Publication number
- JPS5475518A JPS5475518A JP14302577A JP14302577A JPS5475518A JP S5475518 A JPS5475518 A JP S5475518A JP 14302577 A JP14302577 A JP 14302577A JP 14302577 A JP14302577 A JP 14302577A JP S5475518 A JPS5475518 A JP S5475518A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- load
- circuit
- pulse
- driving
- 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
Abstract
PURPOSE:To control electric power, based on condition of load, and reduce power consumption of motor, by providing resistance element on transistor for driving coil of pulse motor, and detecting motor operating condition by voltage wave shape which is generated on the resistance element. CONSTITUTION:Output of time standard vibrator 25 is divided in the frequency by the circuit 26 which contains oscillating circuit and frequency divider circuit, the wave is shaped, pulse motor 28 is driven by driving circuit 27, resistance element is provided in parallel to transistors for driving coil of an electric motor 28, load condition is detected by load detecting circuit 29 from voltage wave shape after impression of driving pulse, and corresponding to this, the motor 28 is controlled with control circuit 30. Therefore, narrow driving pulse is supplied at no load time, and wide pulse is supplied at load time; power consumption for motor as a whole can be reduced by making a greater part of daily power supply which is near no load to be small power.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14302577A JPS586400B2 (en) | 1977-11-29 | 1977-11-29 | electronic clock |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14302577A JPS586400B2 (en) | 1977-11-29 | 1977-11-29 | electronic clock |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14594982A Division JPS607480B2 (en) | 1982-08-23 | 1982-08-23 | Pulse motor operation detection circuit |
JP19885083A Division JPS59135387A (en) | 1983-10-24 | 1983-10-24 | Electronic time piece |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5475518A true JPS5475518A (en) | 1979-06-16 |
JPS586400B2 JPS586400B2 (en) | 1983-02-04 |
Family
ID=15329151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14302577A Expired JPS586400B2 (en) | 1977-11-29 | 1977-11-29 | electronic clock |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS586400B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5596265U (en) * | 1979-08-24 | 1980-07-04 | ||
JPS56111485A (en) * | 1979-09-10 | 1981-09-03 | Berney Sa Jean Claude | Watch |
-
1977
- 1977-11-29 JP JP14302577A patent/JPS586400B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5596265U (en) * | 1979-08-24 | 1980-07-04 | ||
JPS56111485A (en) * | 1979-09-10 | 1981-09-03 | Berney Sa Jean Claude | Watch |
JPH0118398B2 (en) * | 1979-09-10 | 1989-04-05 | Ebauchesfabrik Eta Ag |
Also Published As
Publication number | Publication date |
---|---|
JPS586400B2 (en) | 1983-02-04 |
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