JPS61139007U - - Google Patents
Info
- Publication number
- JPS61139007U JPS61139007U JP1985020976U JP2097685U JPS61139007U JP S61139007 U JPS61139007 U JP S61139007U JP 1985020976 U JP1985020976 U JP 1985020976U JP 2097685 U JP2097685 U JP 2097685U JP S61139007 U JPS61139007 U JP S61139007U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- terminal
- emitter terminal
- base terminal
- emitter
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Optical Communication System (AREA)
Description
第１図は本考案の一実施例の光受信回路の構成
を示す回路図、第２図は従来の光受信回路の構成
を示す回路図である。
１１……光電変換素子、１２……前段のトラン
ジスタ、１３……後段のトランジスタ、１７……
第３のトランジスタ、ＯＵＴ……出力端子、Ｖｒ
……基準電圧。
FIG. 1 is a circuit diagram showing the configuration of an optical receiving circuit according to an embodiment of the present invention, and FIG. 2 is a circuit diagram showing the configuration of a conventional optical receiving circuit. 11... Photoelectric conversion element, 12... Front stage transistor, 13... Back stage transistor, 17...
Third transistor, OUT...output terminal, Vr
...Reference voltage.
Claims (1)
に光電変換素子を接続し、光電変換しかつ増幅し
た電気信号を後段のトランジスタのエミツタ端子
から出力する光受信回路において、 前段のトランジスタのエミツタ端子と地気間に
接続される抵抗器であつて少なくとも一部が並列
接続コンデンサを有するものと、 前段のトランジスタのベース端子及びエミツタ
端子のそれぞれに接続されるコレクタ端子及びベ
ース端子と、所定の基準電圧が供給されるエミツ
タ端子を有する第３のトランジスタとを備えたこ
とを特徴とする光受信回路。[Scope of Claim for Utility Model Registration] In an optical receiving circuit in which a photoelectric conversion element is connected between a power supply voltage and the base terminal of a transistor in the preceding stage, and an electrical signal that is photoelectrically converted and amplified is output from the emitter terminal of the transistor in the succeeding stage, A resistor connected between the emitter terminal of the transistor and the ground, at least a part of which has a parallel-connected capacitor, and a collector terminal and base terminal connected to the base terminal and emitter terminal of the preceding transistor, respectively. and a third transistor having an emitter terminal to which a predetermined reference voltage is supplied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985020976U JPS61139007U (en) | 1985-02-16 | 1985-02-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985020976U JPS61139007U (en) | 1985-02-16 | 1985-02-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61139007U true JPS61139007U (en) | 1986-08-28 |
Family
ID=30511959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985020976U Pending JPS61139007U (en) | 1985-02-16 | 1985-02-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61139007U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4991167A (en) * | 1972-12-29 | 1974-08-30 | ||
| JPS58182906A (en) * | 1982-04-20 | 1983-10-26 | Hitachi Cable Ltd | Preamplifying circuit for optical receiver |
| JPS5915316A (en) * | 1982-07-15 | 1984-01-26 | Matsushita Electric Ind Co Ltd | Current limiter circuit |
-
1985
- 1985-02-16 JP JP1985020976U patent/JPS61139007U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4991167A (en) * | 1972-12-29 | 1974-08-30 | ||
| JPS58182906A (en) * | 1982-04-20 | 1983-10-26 | Hitachi Cable Ltd | Preamplifying circuit for optical receiver |
| JPS5915316A (en) * | 1982-07-15 | 1984-01-26 | Matsushita Electric Ind Co Ltd | Current limiter circuit |