JPS5952749U - Optical signal receiving circuit - Google Patents

Optical signal receiving circuit

Info

Publication number
JPS5952749U
JPS5952749U JP1982138543U JP13854382U JPS5952749U JP S5952749 U JPS5952749 U JP S5952749U JP 1982138543 U JP1982138543 U JP 1982138543U JP 13854382 U JP13854382 U JP 13854382U JP S5952749 U JPS5952749 U JP S5952749U
Authority
JP
Japan
Prior art keywords
optical signal
receiving circuit
signal receiving
phototransistor
current
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.)
Granted
Application number
JP1982138543U
Other languages
Japanese (ja)
Other versions
JPH0129880Y2 (en
Inventor
畔上　忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yokogawa Electric Corp filed Critical Yokogawa Electric Corp
Priority to JP1982138543U priority Critical patent/JPS5952749U/en
Publication of JPS5952749U publication Critical patent/JPS5952749U/en
Application granted granted Critical
Publication of JPH0129880Y2 publication Critical patent/JPH0129880Y2/ja
Granted legal-status Critical Current

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  • Optical Communication System (AREA)

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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来のフォトカップラを示す接続図、第２図は
この考案の説明に供するための波形図、第３図は従来の
フォトカップラの他の例を示す接続図、第４図はこの考
案による光信号受信器の一例を示す接続図、第５図およ
び第６図はそれぞれ７　その他の例を示す接続図である
。 １１：フォトトランジスタ、１４二出力端子。Fig. 1 is a connection diagram showing a conventional photocoupler, Fig. 2 is a waveform diagram for explaining this invention, Fig. 3 is a connection diagram showing another example of the conventional photocoupler, and Fig. 4 is a connection diagram of this invention. A connection diagram showing one example of the optical signal receiver according to the invention, and FIGS. 5 and 6 are connection diagrams showing seven other examples, respectively. 11: Phototransistor, 14 two output terminals.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] フォトトランジスタにより光信号を受信して電気信号と
して出力する光信号受信回路において、上記フォトトラ
ンジスタのコレクタ・エミッタ間電圧が所定値以下にな
るのを検出する手段と、その検出により上記フォトトラ
ンジスタのベースから電流を引出す電流引出し手段とを
設けたことを特徴とする光信号受信回路。In an optical signal receiving circuit that receives an optical signal by a phototransistor and outputs it as an electric signal, means for detecting that the voltage between the collector and emitter of the phototransistor becomes equal to or less than a predetermined value, 1. An optical signal receiving circuit comprising: current drawing means for drawing a current from the optical signal receiving circuit.
JP1982138543U 1982-09-13 1982-09-13 Optical signal receiving circuit Granted JPS5952749U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1982138543U JPS5952749U (en) 1982-09-13 1982-09-13 Optical signal receiving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982138543U JPS5952749U (en) 1982-09-13 1982-09-13 Optical signal receiving circuit

Publications (2)

Publication Number Publication Date
JPS5952749U true JPS5952749U (en) 1984-04-06
JPH0129880Y2 JPH0129880Y2 (en) 1989-09-12

Family

ID=30310822

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1982138543U Granted JPS5952749U (en) 1982-09-13 1982-09-13 Optical signal receiving circuit

Country Status (1)

Country Link
JP (1) JPS5952749U (en)

Also Published As

Publication number Publication date
JPH0129880Y2 (en) 1989-09-12

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