JPS5952749U - Optical signal receiving circuit - Google Patents
Optical signal receiving circuitInfo
- 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
Links
Landscapes
- 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
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)
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.
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) |
-
1982
- 1982-09-13 JP JP1982138543U patent/JPS5952749U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0129880Y2 (en) | 1989-09-12 |
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