JPS58133890U

JPS58133890U - Multi-stage signal transmission detector

Info

Publication number: JPS58133890U
Application number: JP2906082U
Authority: JP
Inventors: 定隆湯地
Original assignee: ホーチキ株式会社
Priority date: 1982-03-02
Filing date: 1982-03-02
Publication date: 1983-09-09
Also published as: JPS642235Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の火災感知器の回路図、第２図は本考案の
一実施例を示した回路図、第３図は第２図の実施例にお
ける各部の信号波形を示した波形図、第４図は本考案の
他の実施例を示した回路図である。Ｒ□〜Ｒ３２・・・抵抗、Ｄ□。〜Ｄ□４・・・ダイオ
ード、１・・・イオン化式煙検出部、２・・・ＦＥＴ、
　１０．　１２゜１４・・・コンパレータ、１６・・・
発振回路、１８・・・遅延回路、２０，２２．２４・・
・Ｄ−ＦＦ、２６・・・ボルテージホロワ、２８・・・
定電圧回路、３０・・・発光ダイオード、３２・・・発
光ダイオード、３４・・・オペアンプ、４０・・・トラ
ンジスタ。Fig. 1 is a circuit diagram of a conventional fire detector, Fig. 2 is a circuit diagram showing an embodiment of the present invention, Fig. 3 is a waveform diagram showing signal waveforms of various parts in the embodiment of Fig. 2, FIG. 4 is a circuit diagram showing another embodiment of the present invention. R□~R32...Resistance, D□. ~D□4...Diode, 1...Ionization type smoke detection section, 2...FET,
10. 12゜14... Comparator, 16...
Oscillation circuit, 18...Delay circuit, 20, 22.24...
・D-FF, 26... Voltage follower, 28...
Constant voltage circuit, 30... Light emitting diode, 32... Light emitting diode, 34... Operational amplifier, 40... Transistor.

Claims

[Claims for Utility Model Registration] A detection circuit that detects a physical change in the environment of a detection area and outputs a detection signal according to the physical change, and a difference in the discrimination reference level to which the detection signal of the detection circuit is input. a comparator circuit having a plurality of comparators; a first resistor having one end connected to each comparator output of the comparator circuit and the other end commonly connected;
A voltage generating circuit consisting of a second resistor connected in series with a resistor, and a signal that changes in multiple stages according to a detection signal by inputting the connection point between the first resistor and the second resistor in the voltage generating circuit. 1. A multi-stage signal transmission detector comprising impedance conversion means for outputting.