JPS5445172A - Electronic watch with solar batteries - Google Patents
Electronic watch with solar batteriesInfo
- Publication number
- JPS5445172A JPS5445172A JP11199077A JP11199077A JPS5445172A JP S5445172 A JPS5445172 A JP S5445172A JP 11199077 A JP11199077 A JP 11199077A JP 11199077 A JP11199077 A JP 11199077A JP S5445172 A JPS5445172 A JP S5445172A
- Authority
- JP
- Japan
- Prior art keywords
- watch
- state
- solar batteries
- battery
- cut
- 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
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
- G04G19/12—Arrangements for reducing power consumption during storage
Abstract
PURPOSE:To prevent excessive overcharging in the state where the current consumption of the watch has been reduced by providing a switching means which so functions as to induce a change in the current consumption of the watch in correspondence to the operation of an external operatng member. CONSTITUTION:When a switch S is closed by an external operating member such as winding crown, etc., the logic level of terminal 7 becomes H, and transistors 11, 13 go OFF. As a result, the supply of power surce to an oscillation circuit 1 is cut off and the watch is put in a power saving state and at the same time this also turnes out that the charging line from solar batteries 8 to a battery 12 for power source is cut off, thus the state of supplying excessive charge quantity to the battery 12 for power source may be prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11199077A JPS5445172A (en) | 1977-09-17 | 1977-09-17 | Electronic watch with solar batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11199077A JPS5445172A (en) | 1977-09-17 | 1977-09-17 | Electronic watch with solar batteries |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5445172A true JPS5445172A (en) | 1979-04-10 |
Family
ID=14575171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11199077A Pending JPS5445172A (en) | 1977-09-17 | 1977-09-17 | Electronic watch with solar batteries |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5445172A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002014959A1 (en) * | 2000-08-15 | 2002-02-21 | Citizen Watch Co., Ltd. | Electronic timepiece and method of driving electronic timepiece |
-
1977
- 1977-09-17 JP JP11199077A patent/JPS5445172A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002014959A1 (en) * | 2000-08-15 | 2002-02-21 | Citizen Watch Co., Ltd. | Electronic timepiece and method of driving electronic timepiece |
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