JPH0246421U - - Google Patents

Info

Publication number
JPH0246421U
JPH0246421U JP12474288U JP12474288U JPH0246421U JP H0246421 U JPH0246421 U JP H0246421U JP 12474288 U JP12474288 U JP 12474288U JP 12474288 U JP12474288 U JP 12474288U JP H0246421 U JPH0246421 U JP H0246421U
Authority
JP
Japan
Prior art keywords
amplifier
light receiving
variable gain
receiving circuit
bias resistor
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
Application number
JP12474288U
Other languages
English (en)
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 filed Critical
Priority to JP12474288U priority Critical patent/JPH0246421U/ja
Publication of JPH0246421U publication Critical patent/JPH0246421U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Optical Communication System (AREA)
  • Control Of Amplification And Gain Control (AREA)

Description

【図面の簡単な説明】
第1図は、本考案の一実施例に係る光受信器の
要部構成を示す回路図、第2図は従来のAGC方
式の光受信器の要部構成を示す回路図、第3図は
、本実施例における受信光電力と利得制御電圧の
関係を示す線図である。 1…受光素子、2…プリアンプ、3…可変利得
アンプ、4…メインアンプ、5…ピーク検出回路
、6…AGC電圧用アンプ、7…バツフアアンプ
、8,9…バイアス用抵抗。

Claims (1)

    【実用新案登録請求の範囲】
  1. 受信光信号を電流信号に変換する受光素子と、
    上記電流信号を増幅する可変利得機能をもつたア
    ンプを含むアンプ回路と、受光素子に直列に接続
    されるバイアス用抵抗からなる光受信回路におい
    て、バイアス抵抗に生じる直流電圧を、バツフア
    アンプを介して該可変利得増幅器の利得制御端子
    に入力することにより、可変利得増幅器の利得を
    下げて、大入力の光レベルに対し受光回路出力の
    飽和を防ぎ、信号の波形歪を防止することを特徴
    とした光受信回路。
JP12474288U 1988-09-26 1988-09-26 Pending JPH0246421U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12474288U JPH0246421U (ja) 1988-09-26 1988-09-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12474288U JPH0246421U (ja) 1988-09-26 1988-09-26

Publications (1)

Publication Number Publication Date
JPH0246421U true JPH0246421U (ja) 1990-03-29

Family

ID=31374740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12474288U Pending JPH0246421U (ja) 1988-09-26 1988-09-26

Country Status (1)

Country Link
JP (1) JPH0246421U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0438194U (ja) * 1990-07-27 1992-03-31

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0438194U (ja) * 1990-07-27 1992-03-31

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