JPS6045518U - automatic level control circuit - Google Patents
automatic level control circuitInfo
- Publication number
- JPS6045518U JPS6045518U JP13661383U JP13661383U JPS6045518U JP S6045518 U JPS6045518 U JP S6045518U JP 13661383 U JP13661383 U JP 13661383U JP 13661383 U JP13661383 U JP 13661383U JP S6045518 U JPS6045518 U JP S6045518U
- Authority
- JP
- Japan
- Prior art keywords
- control circuit
- level control
- input terminal
- automatic level
- signal
- 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
- Control Of Amplification And Gain Control (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図は従来の自動レベル制御回路の一例を示すブロッ
ク図、第２図はこの考案の一実施例を示す自動レベル制
御回路のブロック図、第３図は第２図の主要点の信号を
示す波形図である。
図中、１２はレベル制御回路、１４は可変インピーダン
ス回路、１５は電力増幅回路、１６は比較器、１７．１
８はレベル検出器を構成するアンプである。 □Fig. 1 is a block diagram showing an example of a conventional automatic level control circuit, Fig. 2 is a block diagram of an automatic level control circuit showing an embodiment of this invention, and Fig. 3 shows signals of the main points in Fig. 2. FIG. In the figure, 12 is a level control circuit, 14 is a variable impedance circuit, 15 is a power amplifier circuit, 16 is a comparator, 17.1
8 is an amplifier constituting a level detector. □
Claims (1)
制御回路に正相入力端子が結合され、逆相入力端子に負
帰還信号が供給されている電力増幅器と、前記レベル制
御回路の出力信号と前記負帰還信号を比較し、その差信
号を出力する比較器と、該比較器の出力レベルを検出す
る検出回路からなり、前記検出回路の制御信号によって
前記レベル制御回路を制御することを特徴とする自動レ
ベル制御回路。a level control circuit connected to an input terminal; a power amplifier having a positive phase input terminal coupled to the level control circuit and a negative feedback signal supplied to a negative phase input terminal; and an output signal of the level control circuit. It comprises a comparator that compares the negative feedback signals and outputs a difference signal, and a detection circuit that detects the output level of the comparator, and the level control circuit is controlled by a control signal of the detection circuit. Automatic level control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13661383U JPS6045518U (en) | 1983-09-05 | 1983-09-05 | automatic level control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13661383U JPS6045518U (en) | 1983-09-05 | 1983-09-05 | automatic level control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6045518U true JPS6045518U (en) | 1985-03-30 |
Family
ID=30307108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13661383U Pending JPS6045518U (en) | 1983-09-05 | 1983-09-05 | automatic level control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6045518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999000895A1 (en) * | 1997-06-27 | 1999-01-07 | Matsushita Electric Industrial Co., Ltd. | Power amplifier device |
-
1983
- 1983-09-05 JP JP13661383U patent/JPS6045518U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999000895A1 (en) * | 1997-06-27 | 1999-01-07 | Matsushita Electric Industrial Co., Ltd. | Power amplifier device |
| US6163212A (en) * | 1997-06-27 | 2000-12-19 | Matsushita Electric Industrial Co., Ltd. | Power amplifier system |
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