| 摘要 |
PURPOSE:To enable the highly-accurate detection of an ambience by a construction wherein a sensitive electromotive force of an ambience sensor to which a thermistor is connected for temperature compensation is inputted to ICs, and a control load and display units are operated by the outputs of said ICs. CONSTITUTION:While a sensitive electromotive force of an ambience sensor Sx varies corresponding to the conditions of an ambience, the serial connection of a thermistor Sh to said sensor makes it possible to take out only an electromotive force varying corresponding to the conditions of the ambience, at the connection point of the two units. This electromotive force is impressed on an integrated circuit IC1, and a switching transistor Q2 is driven by an output signal of the circuit IC1, whereby a relay Ry as a control load can be driven. On the other hand, the electromotive force is impressed on integrated circuits IC2, IC3...IC7, and display units m1...m7 are driven by output signals of these ICs respectively, whereby displays corresponding to the conditions of the ambience can be performed thereby. |
