JPS5776470A - Wristwatch with solar battery - Google Patents
Wristwatch with solar batteryInfo
- Publication number
- JPS5776470A JPS5776470A JP55151722A JP15172280A JPS5776470A JP S5776470 A JPS5776470 A JP S5776470A JP 55151722 A JP55151722 A JP 55151722A JP 15172280 A JP15172280 A JP 15172280A JP S5776470 A JPS5776470 A JP S5776470A
- Authority
- JP
- Japan
- Prior art keywords
- secondary battery
- voltage
- capacity
- displayed
- point
- 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
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C10/00—Arrangements of electric power supplies in time pieces
- G04C10/04—Arrangements of electric power supplies in time pieces with means for indicating the condition of the power supply
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Secondary Cells (AREA)
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
- Photovoltaic Devices (AREA)
Abstract
PURPOSE:To permit checking of electrically charging levels and prevent the capacity run out of a secondary battery by displaying the voltage of the secondary battery having two stages of voltage flattening parts dividedly in three stages. CONSTITUTION:When the capacity of a secondary battery is between point (a)- point (b), the electric current generated by solar batteries is charged into the secondary battery. At this time, the voltage of the secondary battery is roughly constant. Voltage E0 is detected with a voltage detecting circuit, and a symbol mark indicating that the capacity of the secondary battery is correct is displayed in a display device. When the capacity of the secondary battery exceeds 100% and arrives at the point (c) and when the voltage of the secondary batteries goes E1, a symbol mark indicating that the capacity of the secondary battery is full is displayed. When the voltage of the secondary battery lowers to E2, a symbol mark indicating the decreased capacity of the secondary battery is displayed in the display device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55151722A JPS5776470A (en) | 1980-10-29 | 1980-10-29 | Wristwatch with solar battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55151722A JPS5776470A (en) | 1980-10-29 | 1980-10-29 | Wristwatch with solar battery |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5776470A true JPS5776470A (en) | 1982-05-13 |
Family
ID=15524847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55151722A Pending JPS5776470A (en) | 1980-10-29 | 1980-10-29 | Wristwatch with solar battery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5776470A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5914681A (en) * | 1982-07-15 | 1984-01-25 | Matsushita Electric Works Ltd | Solar battery with charge storage function |
JPS62128336U (en) * | 1986-02-06 | 1987-08-14 | ||
WO2000013066A1 (en) * | 1998-08-31 | 2000-03-09 | Citizen Watch Co., Ltd. | Electronic watch with generating function |
-
1980
- 1980-10-29 JP JP55151722A patent/JPS5776470A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5914681A (en) * | 1982-07-15 | 1984-01-25 | Matsushita Electric Works Ltd | Solar battery with charge storage function |
JPS6322632B2 (en) * | 1982-07-15 | 1988-05-12 | Matsushita Electric Works Ltd | |
JPS62128336U (en) * | 1986-02-06 | 1987-08-14 | ||
WO2000013066A1 (en) * | 1998-08-31 | 2000-03-09 | Citizen Watch Co., Ltd. | Electronic watch with generating function |
US6580665B1 (en) | 1998-08-31 | 2003-06-17 | Citizen Watch Co., Ltd. | Electronic timepiece having power generating function |
JP4481497B2 (en) * | 1998-08-31 | 2010-06-16 | シチズンホールディングス株式会社 | Electronic watch with power generation function |
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