JPS6118618U - Amplifier automatic gain control circuit - Google Patents
Amplifier automatic gain control circuitInfo
- Publication number
- JPS6118618U JPS6118618U JP10389884U JP10389884U JPS6118618U JP S6118618 U JPS6118618 U JP S6118618U JP 10389884 U JP10389884 U JP 10389884U JP 10389884 U JP10389884 U JP 10389884U JP S6118618 U JPS6118618 U JP S6118618U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- control circuit
- gain control
- automatic gain
- amplifier automatic
- 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
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
【図面の簡単な説明】
第１図はこの考案の増幅器の自動利得制御回路の一実施
例のブロック図、第２図は従来の増幅器の自動利得制御
回路のブロック図、第３図ａは第２図の増幅器の自動利
得制御回路に適用される変調信号の波形図、，第３図ｂ
は第２図の増幅器の自動利得制御回路に適用されるＡＭ
変調信号の波形図である。
１・・・励振器、２・・・可便利得器、３・・・増幅器
、４・・・アンテナ、５，１０・・・結合器、６・・・
検波器、８・・・比較器。[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a block diagram of an embodiment of the automatic gain control circuit of an amplifier according to the present invention, Fig. 2 is a block diagram of a conventional automatic gain control circuit of an amplifier, and Fig. 3a is a block diagram of an embodiment of the automatic gain control circuit of an amplifier according to the present invention. Waveform diagram of the modulation signal applied to the automatic gain control circuit of the amplifier in Figure 2, Figure 3b
is the AM applied to the automatic gain control circuit of the amplifier in Figure 2.
FIG. 3 is a waveform diagram of a modulation signal. DESCRIPTION OF SYMBOLS 1... Exciter, 2... Convenient gainer, 3... Amplifier, 4... Antenna, 5, 10... Coupler, 6...
Detector, 8... comparator.
Claims (1)
器を介して増幅する増幅器と、この増幅器の出力の一部
を取り出して検波する検波器と、上記入力信号の一部を
取り出した検波信号を基準電源とする手段と、この手段
で得られた基準電源と上記検波器で検波された検波信号
とを比較して両者が等しくなるように上記可変利得器の
利得を制御する比較器とよりなる増幅器の自動利得制御
回路。An amplifier that amplifies an input signal that has been modulated in a predetermined manner by a modulation signal via a variable gain device, a detector that extracts and detects a portion of the output of this amplifier, and a detected signal that extracts a portion of the input signal. a comparator that compares the reference power obtained by this means with the detected signal detected by the detector and controls the gain of the variable gain unit so that the two become equal. Automatic gain control circuit of the amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10389884U JPS6118618U (en) | 1984-07-10 | 1984-07-10 | Amplifier automatic gain control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10389884U JPS6118618U (en) | 1984-07-10 | 1984-07-10 | Amplifier automatic gain control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6118618U true JPS6118618U (en) | 1986-02-03 |
Family
ID=30663267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10389884U Pending JPS6118618U (en) | 1984-07-10 | 1984-07-10 | Amplifier automatic gain control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6118618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03276912A (en) * | 1990-02-13 | 1991-12-09 | Nippon Telegr & Teleph Corp <Ntt> | Linear signal transmitter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5748812A (en) * | 1980-09-05 | 1982-03-20 | Nec Corp | Amplifier |
| JPS57199396A (en) * | 1981-06-02 | 1982-12-07 | Sanyo Electric Co Ltd | Speaker input controlling circuit |
-
1984
- 1984-07-10 JP JP10389884U patent/JPS6118618U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5748812A (en) * | 1980-09-05 | 1982-03-20 | Nec Corp | Amplifier |
| JPS57199396A (en) * | 1981-06-02 | 1982-12-07 | Sanyo Electric Co Ltd | Speaker input controlling circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03276912A (en) * | 1990-02-13 | 1991-12-09 | Nippon Telegr & Teleph Corp <Ntt> | Linear signal transmitter |
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