JPS5917018U - Auto level control circuit - Google Patents
Auto level control circuitInfo
- Publication number
- JPS5917018U JPS5917018U JP11236282U JP11236282U JPS5917018U JP S5917018 U JPS5917018 U JP S5917018U JP 11236282 U JP11236282 U JP 11236282U JP 11236282 U JP11236282 U JP 11236282U JP S5917018 U JPS5917018 U JP S5917018U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- time constant
- level control
- output
- control circuit
- 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
第１図、第２図は従来のオートレベルコントローラの一
例を示す回路図、第３図は第１図、第２図に示す中間ア
ンプの出力波形を示す図、第４図はこの考案によるオー
トレベルコントローラの一実施例を示す回路図である。
１・・・アンテナ、２・・・チューナ、３・・・マイク
、４・・・マイクアンプ、５・・・入力切換回路、６・
・・中間アンプ、７・・・録音アンプ、８・・・録音ヘ
ッド、９・・・整流回路、１０・・・時定回路、１１・
・・レベルコントロール回路、１２・・・時定数切換ス
イッチ、Ｑ、、 Ｑ２・・・トランジスタ、Ｒ１−Ｒ６
・・・抵Ｌ ｃｍ、 Ｃ２−・・コン 〜アンプ、
Ｄｌ・・・ダイオード。Figures 1 and 2 are circuit diagrams showing an example of a conventional auto level controller, Figure 3 is a diagram showing the output waveform of the intermediate amplifier shown in Figures 1 and 2, and Figure 4 is a circuit diagram showing an example of a conventional auto level controller. FIG. 2 is a circuit diagram showing an example of a level controller. DESCRIPTION OF SYMBOLS 1... Antenna, 2... Tuner, 3... Microphone, 4... Microphone amplifier, 5... Input switching circuit, 6...
... intermediate amplifier, 7 ... recording amplifier, 8 ... recording head, 9 ... rectifier circuit, 10 ... time constant circuit, 11.
...Level control circuit, 12...Time constant changeover switch, Q,, Q2...Transistor, R1-R6
...Resistance L cm, C2-...Con ~amplifier,
Dl...Diode.
Claims (1)
回路の出力信号を抵抗を介して入力する中間アンプと、
この中間アンプの出力を整流する整流回路と、この整流
回路の出力側に接続された時定数回路と、この時定数回
路の出力に対応して前記抵抗の出力側をアースに落すこ
とによって前記中間アンプの出力レベルを一定化するオ
ートレベルコントロール回路において、前記入力切換口
。 路に連動して作動することにより前記時定数回路の時定
数を入力ソースの種別に応じて切り換える時定数切換回
路を設けたことを特徴とするオートレベルコントロール
回路。[Claims for Utility Model Registration] An input switching circuit that switches input sources, an intermediate amplifier that inputs the output signal of this input switching circuit via a resistor,
A rectifier circuit that rectifies the output of this intermediate amplifier, a time constant circuit connected to the output side of this rectifier circuit, and an output side of the resistor connected to the ground in accordance with the output of this time constant circuit. In the auto level control circuit that stabilizes the output level of the amplifier, the input switching port. 1. An auto level control circuit comprising: a time constant switching circuit that operates in conjunction with the input source to switch the time constant of the time constant circuit according to the type of input source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11236282U JPS5917018U (en) | 1982-07-23 | 1982-07-23 | Auto level control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11236282U JPS5917018U (en) | 1982-07-23 | 1982-07-23 | Auto level control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5917018U true JPS5917018U (en) | 1984-02-01 |
Family
ID=30260503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11236282U Pending JPS5917018U (en) | 1982-07-23 | 1982-07-23 | Auto level control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5917018U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62277604A (en) * | 1986-05-26 | 1987-12-02 | Matsushita Electric Ind Co Ltd | Tape recorder |
| US20210156576A1 (en) * | 2019-11-26 | 2021-05-27 | Samsung Electronics Co., Ltd. | Air conditioner and pipe installation apparatus therefor |
-
1982
- 1982-07-23 JP JP11236282U patent/JPS5917018U/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62277604A (en) * | 1986-05-26 | 1987-12-02 | Matsushita Electric Ind Co Ltd | Tape recorder |
| US20210156576A1 (en) * | 2019-11-26 | 2021-05-27 | Samsung Electronics Co., Ltd. | Air conditioner and pipe installation apparatus therefor |
| US11754299B2 (en) * | 2019-11-26 | 2023-09-12 | Samsung Electronics Co., Ltd. | Air conditioner and pipe installation apparatus therefor |
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