JPS5596484A - Indicating device of battery life for watch - Google Patents
Indicating device of battery life for watchInfo
- Publication number
- JPS5596484A JPS5596484A JP533479A JP533479A JPS5596484A JP S5596484 A JPS5596484 A JP S5596484A JP 533479 A JP533479 A JP 533479A JP 533479 A JP533479 A JP 533479A JP S5596484 A JPS5596484 A JP S5596484A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- watch
- detection circuit
- battery
- 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)
- Measurement Of Current Or Voltage (AREA)
- Power Sources (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
PURPOSE: To ensure an accurate range until disorder or suspension of the watch actually takes place after the battery life is forecast by means of a circuit adapted to start counting the output of the divider circuit by the signal from a battery voltage detection circuit.
CONSTITUTION: The voltage of a battery 6 is detected by a voltage detection circuit 7. When the detected voltage reaches a certain level, a transistor 7a is turned on and an indication plate 10 is disengaged from a mobile piece 9 and moves to the position as indicated by the broken line. A switch 11 works to cut the current flowing through an indication plate drive coil 8. At the same time, receiving the output of the detection circuit 7, a counter circuit 14 is reset. When the working voltage of the detection circuit 7 is expressed by V1, the minimum working voltage of the watch V2 and the battery voltage in the forecast range V3, the value of V1 is set to meet the relationship V1>V3>V2. If so, the gate circuit 15 is off in a certain period of time after the forecast indication, when signals fail to be applied to the drive circuit 3 and the watch comes to a stop.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP533479A JPS5596484A (en) | 1979-01-19 | 1979-01-19 | Indicating device of battery life for watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP533479A JPS5596484A (en) | 1979-01-19 | 1979-01-19 | Indicating device of battery life for watch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5596484A true JPS5596484A (en) | 1980-07-22 |
Family
ID=11608329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP533479A Pending JPS5596484A (en) | 1979-01-19 | 1979-01-19 | Indicating device of battery life for watch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5596484A (en) |
-
1979
- 1979-01-19 JP JP533479A patent/JPS5596484A/en active Pending
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