KR980006812A - Variable gain adjustment circuit - Google Patents
Variable gain adjustment circuit Download PDFInfo
- Publication number
- KR980006812A KR980006812A KR1019960019666A KR19960019666A KR980006812A KR 980006812 A KR980006812 A KR 980006812A KR 1019960019666 A KR1019960019666 A KR 1019960019666A KR 19960019666 A KR19960019666 A KR 19960019666A KR 980006812 A KR980006812 A KR 980006812A
- Authority
- KR
- South Korea
- Prior art keywords
- saturation
- gain adjustment
- stage
- amplifier
- variable gain
- Prior art date
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- Control Of Amplification And Gain Control (AREA)
Abstract
본 발명은 다단으로 구성된 자동이득 조정(AGC) 회로에서 각 단의 포화를 검출하는 가변 이득 조정 회로에 관한 것으로서, 특히 다단으로 직렬 연결된 다수개의 증폭기가, 상기 각 증폭기의 출력과 미리 설정된 임계값을 비교하여 각 증폭기의 포화를 검출하는 다수개의 포화 검출부와, 상기 포화 검출부의 출력에 따라 앞단의 증폭기부터 순차적으로 이득을 조정하는 AGC 제어부로 구성되어, 지연 양을 결정할 필요가 없으면서 초단의 증폭율을 최대로 유지할 수 있고, 또한, 각 단의 포화 왜곡도 최대한 줄일 수 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable gain adjustment circuit for detecting saturation of each stage in a multi-stage automatic gain adjustment (AGC) circuit. Comparing a plurality of saturation detection unit for detecting the saturation of each amplifier and an AGC control unit for adjusting the gain sequentially from the amplifier in front of the output according to the output of the saturation detection unit, the amplification rate of the first stage without the need to determine the amount of delay It is possible to maintain the maximum and to reduce the saturation distortion of each stage as much as possible.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제3도는 본 발명에 따른 가변 이득조정 회로의 단순 블럭도.3 is a simple block diagram of a variable gain adjustment circuit according to the present invention.
제4도는 상기 제3도의 포화 검출부의 상세 블럭도.4 is a detailed block diagram of the saturation detector of FIG. 3;
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960019666A KR980006812A (en) | 1996-06-03 | 1996-06-03 | Variable gain adjustment circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960019666A KR980006812A (en) | 1996-06-03 | 1996-06-03 | Variable gain adjustment circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
KR980006812A true KR980006812A (en) | 1998-03-30 |
Family
ID=66284173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960019666A KR980006812A (en) | 1996-06-03 | 1996-06-03 | Variable gain adjustment circuit |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR980006812A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100740500B1 (en) * | 2003-07-03 | 2007-07-19 | 후지필름 가부시키가이샤 | Image forming device |
-
1996
- 1996-06-03 KR KR1019960019666A patent/KR980006812A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100740500B1 (en) * | 2003-07-03 | 2007-07-19 | 후지필름 가부시키가이샤 | Image forming device |
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Legal Events
Date | Code | Title | Description |
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WITN | Withdrawal due to no request for examination |