JPS6420488A - Electronic wrist watch - Google Patents
Electronic wrist watchInfo
- Publication number
- JPS6420488A JPS6420488A JP12630188A JP12630188A JPS6420488A JP S6420488 A JPS6420488 A JP S6420488A JP 12630188 A JP12630188 A JP 12630188A JP 12630188 A JP12630188 A JP 12630188A JP S6420488 A JPS6420488 A JP S6420488A
- Authority
- JP
- Japan
- Prior art keywords
- current
- rotor
- coil
- cut
- flows
- 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 reduce electric power while maintaining performance by passing current intermittently to a coil at specified time intervals to drive a step motor. CONSTITUTION:The current flows in the route of an arrow 21 only in the sections 22, 24, 26 which rise high in B and the current is interrupted in the section 23, 25, when such intermittent driving signals as figures A, B are impressed to input terminals 17, 19. However, a rotor 1 is driven and such current as figure C flows to the coil 4. Namely, the current is passed only to the margin parts for withstanding a load torque at the start of the rotor 1 and before and after the passage of the magnetic pole of the rotor 1 in the spacing between both stators 2, 3. The current is cut in the other parts, by which the driving force is effectively acted on the rotor 1. The performance such as operation and output torque of the rotor 1 is hardly degraded even if the current is cut in such a manner.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12630188A JPS6420488A (en) | 1988-05-24 | 1988-05-24 | Electronic wrist watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12630188A JPS6420488A (en) | 1988-05-24 | 1988-05-24 | Electronic wrist watch |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13531789A Division JPH0221294A (en) | 1989-05-29 | 1989-05-29 | Driving of electronic timepiece |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6420488A true JPS6420488A (en) | 1989-01-24 |
JPH0429319B2 JPH0429319B2 (en) | 1992-05-18 |
Family
ID=14931814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12630188A Granted JPS6420488A (en) | 1988-05-24 | 1988-05-24 | Electronic wrist watch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6420488A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5210770A (en) * | 1975-07-16 | 1977-01-27 | Citizen Watch Co Ltd | Driving method of electronic watch pulse motor |
-
1988
- 1988-05-24 JP JP12630188A patent/JPS6420488A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5210770A (en) * | 1975-07-16 | 1977-01-27 | Citizen Watch Co Ltd | Driving method of electronic watch pulse motor |
Also Published As
Publication number | Publication date |
---|---|
JPH0429319B2 (en) | 1992-05-18 |
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