JPS59183049U - Television receiver AGC circuit - Google Patents
Television receiver AGC circuitInfo
- Publication number
- JPS59183049U JPS59183049U JP7630083U JP7630083U JPS59183049U JP S59183049 U JPS59183049 U JP S59183049U JP 7630083 U JP7630083 U JP 7630083U JP 7630083 U JP7630083 U JP 7630083U JP S59183049 U JPS59183049 U JP S59183049U
- Authority
- JP
- Japan
- Prior art keywords
- television receiver
- circuit
- agc circuit
- tuner
- gain
- 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
Landscapes
- Television Receiver Circuits (AREA)
- Circuits Of Receivers In General (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ＡＧＣ回路を示し、第２図はそのＡＧＣ
特性を示す図である。第３図は本考案のＡＧＣ回路の概
略構成を示し、第４図はその一実施例を示す回路図、第
５図はそのＡＧＣ特性を示す図である。
１・・・・・・チューナ、２・・・・・・中間周波数回
路、３・・・・・・第１ＡＧＣ検波回路、６・・・・・
・第２ＡＧＣ検波回路。Figure 1 shows a conventional AGC circuit, and Figure 2 shows its AGC circuit.
FIG. 3 is a diagram showing characteristics. FIG. 3 shows a schematic configuration of the AGC circuit of the present invention, FIG. 4 is a circuit diagram showing one embodiment thereof, and FIG. 5 is a diagram showing its AGC characteristics. 1... Tuner, 2... Intermediate frequency circuit, 3... First AGC detection circuit, 6...
・Second AGC detection circuit.
Claims (1)
出力に応じて該中間周波数回路の利得を制御する第１の
ＡＧＣ検波回路とは別に、前記チューナの出力を直接ま
たは増幅したのち検波して利得制御電圧を取り出す第２
のＡＧＣ検疲回路を設け、この第２ＡＧＣ検波回路から
の制御電圧に応、 じて前記チューナを利得制御する
ようにしたことを特徴とするテレビジョン受像機のＡＧ
Ｃ回路。Separately from the first AGC detection circuit, which controls the gain of the intermediate frequency circuit according to the detected output from the intermediate frequency circuit into which the output of the tuner is input, the output of the tuner is detected directly or after being amplified to obtain the gain. The second to take out the control voltage
AG of a television receiver, characterized in that an AGC fatigue detection circuit is provided, and the gain of the tuner is controlled according to the control voltage from the second AGC detection circuit.
C circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7630083U JPS59183049U (en) | 1983-05-20 | 1983-05-20 | Television receiver AGC circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7630083U JPS59183049U (en) | 1983-05-20 | 1983-05-20 | Television receiver AGC circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59183049U true JPS59183049U (en) | 1984-12-06 |
Family
ID=30206347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7630083U Pending JPS59183049U (en) | 1983-05-20 | 1983-05-20 | Television receiver AGC circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59183049U (en) |
-
1983
- 1983-05-20 JP JP7630083U patent/JPS59183049U/en active Pending
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