发明公开
EP0003662A3 Single station type fire alarm system and a multivibrator used in the detection circuitry
失效
单站型火灾报警系统和检测电路中使用的一种多功能一体机
- 专利标题： Single station type fire alarm system and a multivibrator used in the detection circuitry
- 专利标题（中）： 单站型火灾报警系统和检测电路中使用的一种多功能一体机
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申请号： EP79300166申请日： 1979-02-02
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公开(公告)号： EP0003662A3公开(公告)日： 1979-09-05
- 发明人: Arima, Takeo , Furuyama, Akira
- 申请人： HOCHIKI Kabushiki Kaisha
- 专利权人： HOCHIKI Kabushiki Kaisha
- 当前专利权人： HOCHIKI Kabushiki Kaisha
- 优先权： JP1131178 19780203; JP1131278 19780203
- 主分类号： G08B17/10
- IPC分类号： G08B17/10 ; H03K03/282
摘要：
A multivibrator includes two C-MOS inverters (10 and 11) with the input of one inverter (11) connected to the output of the other. The output of the one inverter (11) is connected by a resistor (16) and capacitor (17) in series to its input and the junction of the resistor and capacitor is connected to the base of a transistor (14) having its emitter connected to one pole of the D.C. supply and its collector connected to the input of said other inverter. This arrangement reduces the current drawn by the multivibrator. A fire alarm system incorporating the multivibrator is also disclosed.
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