JPS6437697A - Alarm device - Google Patents
Alarm deviceInfo
- Publication number
- JPS6437697A JPS6437697A JP19365387A JP19365387A JPS6437697A JP S6437697 A JPS6437697 A JP S6437697A JP 19365387 A JP19365387 A JP 19365387A JP 19365387 A JP19365387 A JP 19365387A JP S6437697 A JPS6437697 A JP S6437697A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- voltage
- inverter
- turned
- supplied
- 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
- Alarm Systems (AREA)
Abstract
PURPOSE:To save electric power so that a battery is consumed only at the time of abnormal detecting operation by stopping the informing operation of an informing means when a working power supply voltage is less than a prescribed voltage. CONSTITUTION:When the voltage of a battery 45 is low, LED display using an abnormality displaying LED 7 is stopped. When a common terminal C of a battery test switch 9 is connected to a normally-closed terminal NC in a normal state, the voltage of the battery 45 is divided by resistors 77, 78 and the divided voltage is supplied to an inverter 79. When the voltage of the battery 45 dividedly supplied to the inverter 79 is dropped, the output of the inverter 79 is turned to a high level and the high-level signal is supplied to the base of a transistor (TR) 67 through an OR circuit 82. Consequently, the TR 67 is turned off and the LED 7 is not turned on, so that the power consumption of the battery 45 can be suppressed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19365387A JPS6437697A (en) | 1987-08-04 | 1987-08-04 | Alarm device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19365387A JPS6437697A (en) | 1987-08-04 | 1987-08-04 | Alarm device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6437697A true JPS6437697A (en) | 1989-02-08 |
Family
ID=16311523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19365387A Pending JPS6437697A (en) | 1987-08-04 | 1987-08-04 | Alarm device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6437697A (en) |
-
1987
- 1987-08-04 JP JP19365387A patent/JPS6437697A/en active Pending
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