JPS5387769A - Electro-mechanical transducer drivig circuit for watach - Google Patents
Electro-mechanical transducer drivig circuit for watachInfo
- Publication number
- JPS5387769A JPS5387769A JP267977A JP267977A JPS5387769A JP S5387769 A JPS5387769 A JP S5387769A JP 267977 A JP267977 A JP 267977A JP 267977 A JP267977 A JP 267977A JP S5387769 A JPS5387769 A JP S5387769A
- Authority
- JP
- Japan
- Prior art keywords
- electro
- circuit
- mechanical transducer
- watach
- drivig
- 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.)
- Pending
Links
Landscapes
- Electromechanical Clocks (AREA)
- Control Of Stepping Motors (AREA)
Abstract
PURPOSE:To achieve the reduction in thickness and size of a watch as an electro-mechanical transducer driving circuit for watches of small power consumption by detecting the change in power source voltage at the low temperature time, etc., controlling driving pulse width and driving a step motor, etc.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP267977A JPS5387769A (en) | 1977-01-13 | 1977-01-13 | Electro-mechanical transducer drivig circuit for watach |
US05/821,433 US4158287A (en) | 1976-08-12 | 1977-08-03 | Driver circuit for electro-mechanical transducer |
GB32986/77A GB1580580A (en) | 1976-08-12 | 1977-08-05 | Electronic timepiece |
HK347/82A HK34782A (en) | 1976-08-12 | 1982-07-29 | An electronic timepiece |
SG393/83A SG39383G (en) | 1976-08-12 | 1983-07-06 | An electronic timepiece |
MY296/84A MY8400296A (en) | 1976-08-12 | 1984-12-30 | An electronic timepiece |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP267977A JPS5387769A (en) | 1977-01-13 | 1977-01-13 | Electro-mechanical transducer drivig circuit for watach |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5387769A true JPS5387769A (en) | 1978-08-02 |
Family
ID=11535980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP267977A Pending JPS5387769A (en) | 1976-08-12 | 1977-01-13 | Electro-mechanical transducer drivig circuit for watach |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5387769A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62225199A (en) * | 1986-03-25 | 1987-10-03 | Koyo Seiko Co Ltd | Control device for stepping motor |
-
1977
- 1977-01-13 JP JP267977A patent/JPS5387769A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62225199A (en) * | 1986-03-25 | 1987-10-03 | Koyo Seiko Co Ltd | Control device for stepping motor |
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