JPH0344917U - - Google Patents

Info

Publication number
JPH0344917U
JPH0344917U JP10504989U JP10504989U JPH0344917U JP H0344917 U JPH0344917 U JP H0344917U JP 10504989 U JP10504989 U JP 10504989U JP 10504989 U JP10504989 U JP 10504989U JP H0344917 U JPH0344917 U JP H0344917U
Authority
JP
Japan
Prior art keywords
amplifier
agc
signal
gain
voltage
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
JP10504989U
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 JP10504989U priority Critical patent/JPH0344917U/ja
Publication of JPH0344917U publication Critical patent/JPH0344917U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Television Receiver Circuits (AREA)
  • Control Of Amplification And Gain Control (AREA)

Description

【図面の簡単な説明】
第１図は本考案を実施したＡＧＣ回路を示す回
路図である。第２図はテレビジヨン受像機におけ
る一般的なＡＧＣシステムを示すブロツク図であ
る。第３図は従来例の回路図である。 ２ａ……ＰＦ増幅器、３……ＩＦ増幅器、５…
…ＡＧＣ電圧生成回路、７……リツプル除去フイ
ルタ、８……強制放電回路。

Claims (1)

    【実用新案登録請求の範囲】
  1. テレビジヨン信号を増幅する増幅器に該増幅器
    よりも後段の回路において得られたＡＧＣ電圧を
    印加して前記増幅器の利得を制御するものであつ
    て放電時定数の大きいリツプル除去フイルタの作
    用を受ける前記ＡＧＣ電圧が前記テレビジヨン信
    号の無信号時には前記増幅器の利得を上げるべく
    高く、強信号時には前記増幅器の利得を下げるべ
    く低くなるＡＧＣ回路において、前記無信号時に
    前記リツプル除去フイルタにおけるＡＧＣ電圧を
    強制的に低くなす手段を設けたことを特徴とする
    ＡＧＣ回路。
JP10504989U 1989-09-07 1989-09-07 Pending JPH0344917U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10504989U JPH0344917U (ja) 1989-09-07 1989-09-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10504989U JPH0344917U (ja) 1989-09-07 1989-09-07

Publications (1)

Publication Number Publication Date
JPH0344917U true JPH0344917U (ja) 1991-04-25

Family

ID=31653822

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10504989U Pending JPH0344917U (ja) 1989-09-07 1989-09-07

Country Status (1)

Country Link
JP (1) JPH0344917U (ja)

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