JPS5769279A - Watch with indication of battery life - Google Patents
Watch with indication of battery lifeInfo
- Publication number
- JPS5769279A JPS5769279A JP14431180A JP14431180A JPS5769279A JP S5769279 A JPS5769279 A JP S5769279A JP 14431180 A JP14431180 A JP 14431180A JP 14431180 A JP14431180 A JP 14431180A JP S5769279 A JPS5769279 A JP S5769279A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- outputs
- voltage
- battery
- indication
- 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)
- Electromechanical Clocks (AREA)
Abstract
PURPOSE:To indicate the life of battery when different in the battery voltage by indication different from the normal indication in two different voltage ranges according to output signals of a detection means adaped to detect at least four ranges of the battery voltage. CONSTITUTION:A first voltage detection circuit 10a outputs an H signal when the battery voltage exceeds 2.4V. A second voltage detection circuit 10b outputs the H signal when it exceeds 1.9V. A third voltage detection circuit 10c outputs the H signal when it exceeds 1.4V. When 3V battery system is used as supply source 9, an OR gate 10f outputs an L signal as the battery voltage is below 2.4V, and a control circuit 4 generates a signal for quick turning of a rotor 7 of a step motor at an interval of 2sec. When 1.5V battery system is used, the OR gate 10f outputs the L signal as the battery voltage is below 1.4V to quickly turn the rotor 7 at the interval of 2sec.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14431180A JPS5769279A (en) | 1980-10-17 | 1980-10-17 | Watch with indication of battery life |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14431180A JPS5769279A (en) | 1980-10-17 | 1980-10-17 | Watch with indication of battery life |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5769279A true JPS5769279A (en) | 1982-04-27 |
Family
ID=15359130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14431180A Pending JPS5769279A (en) | 1980-10-17 | 1980-10-17 | Watch with indication of battery life |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5769279A (en) |
-
1980
- 1980-10-17 JP JP14431180A patent/JPS5769279A/en active Pending
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