JPS58132438U

JPS58132438U - Control circuit for photocoupler

Info

Publication number: JPS58132438U
Application number: JP2971482U
Authority: JP
Inventors: 真治中村
Original assignee: 日本電気株式会社
Priority date: 1982-03-03
Filing date: 1982-03-03
Publication date: 1983-09-07

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 drawings]

第１図は従来のリレー制御回路の一実施例を示した回路
図、第２図は第１図に示す回路の動作タイムチャート、
第３図は本考案の一実施例を第１図のリレー制御回路と
対応させて示したリレー制御回路である。１・・・・・・制御回路、２・・・・・・直流電源、３
・・・・・・電流制御抵抗、４・・・・・・オープンコ
レクタ出力集積回路、５・・・・・・フォトカプラ、７
・・・・・・制御信号、１１・・・・・・駆動回路、１
２・・・・・・直流電源、１３・・・・・・リレー（駆
動コイル）、１４・・・・・・電流増幅トランジスタ、
１０１・・・・・・制御回路、１０２・・・・・・直流
電源、１０３・・・・・・電流制限抵抗、１０４・・・
・・・オープンコレクタ出力集積回路、１０５・・・・
・・フォトカプラ、１０６・・・・・・フォトダイオー
ド、１０７・・・・・・制御信号、１０８・・・・・・
定電圧ダイオード、１１１・・・・・・駆動回路、１１
２・・・・・・直流電源、１１３・・・・・・リレー（
駆動コイル）、１１４・・・・・・電流増幅トランジス
タ。Fig. 1 is a circuit diagram showing an example of a conventional relay control circuit, Fig. 2 is an operation time chart of the circuit shown in Fig. 1,
FIG. 3 is a relay control circuit showing an embodiment of the present invention in correspondence with the relay control circuit of FIG. 1. 1... Control circuit, 2... DC power supply, 3
...Current control resistor, 4...Open collector output integrated circuit, 5...Photocoupler, 7
...Control signal, 11...Drive circuit, 1
2...DC power supply, 13...Relay (drive coil), 14...Current amplification transistor,
101... Control circuit, 102... DC power supply, 103... Current limiting resistor, 104...
...Open collector output integrated circuit, 105...
...Photocoupler, 106...Photodiode, 107...Control signal, 108...
Constant voltage diode, 111... Drive circuit, 11
2...DC power supply, 113...Relay (
drive coil), 114... current amplification transistor.

Claims

[Scope of utility model registration request]

It has a DC power supply for a control circuit, a current limiting resistor and a constant voltage diode for supplying the power supply to a photodiode of a photocoupler, and an open collector output integrated circuit operated by the power supply and controlling the photodiode. A photocoupler control circuit featuring: