JPS6014519U - volume control circuit - Google Patents
volume control circuitInfo
- Publication number
- JPS6014519U JPS6014519U JP10614583U JP10614583U JPS6014519U JP S6014519 U JPS6014519 U JP S6014519U JP 10614583 U JP10614583 U JP 10614583U JP 10614583 U JP10614583 U JP 10614583U JP S6014519 U JPS6014519 U JP S6014519U
- Authority
- JP
- Japan
- Prior art keywords
- light
- emitting element
- level
- signal
- driver
- 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図は従来回路における発光素子の駆動電流と受光素
子の抵抗値との関係を示すグラフ、第２図はこの考案の
一実施例を示す回路図、第３図は第２図の回路において
直流制御信号と発光素子の駆動電流との関係を示すグラ
フ、第４図は第３図の回路において直流制御信号と受光
素子の抵抗値との関係を示すグラフである。
１・・・・・・入力端子、３・・・・・・ドライバ、４
・・・・・・発光素子、７・・・・・・ダイオード、８
・・・・・・受光素子、３０・・・・・・オペアンプ、
３１・・・・・・トランジスタ。Fig. 1 is a graph showing the relationship between the driving current of the light emitting element and the resistance value of the light receiving element in a conventional circuit, Fig. 2 is a circuit diagram showing an embodiment of this invention, and Fig. 3 is a graph showing the relationship between the driving current of the light emitting element and the resistance value of the light receiving element in a conventional circuit. FIG. 4 is a graph showing the relationship between the DC control signal and the drive current of the light emitting element, and FIG. 4 is a graph showing the relationship between the DC control signal and the resistance value of the light receiving element in the circuit of FIG. 1...Input terminal, 3...Driver, 4
......Light emitting element, 7...Diode, 8
......Photodetector, 30...Operational amplifier,
31...Transistor.
Claims (1)
制御信号のレベルに応じて前記発光素子に駆動信号を出
力するドライバと、前記発光素子の駆動信号経路に挿入
され、この駆動信号の増加に伴ってレベルが非直線的に
増加する電圧信号を発生し、該電圧信号を前記ドライバ
の入力側に負帰還する非直線素子と、前記発光素子の発
光出力に応じて抵抗値が変化し、入力された音声信号の
レベルを制御して出力する受光素子とを備えた音量制御
回路。a light-emitting element; a driver that receives a control signal for controlling volume and outputs a drive signal to the light-emitting element according to the level of the control signal; a non-linear element that generates a voltage signal whose level increases non-linearly as the voltage increases, and negatively feeds the voltage signal back to the input side of the driver; and a non-linear element whose resistance value changes according to the light emission output of the light-emitting element. and a light receiving element that controls and outputs the level of an input audio signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10614583U JPS6014519U (en) | 1983-07-08 | 1983-07-08 | volume control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10614583U JPS6014519U (en) | 1983-07-08 | 1983-07-08 | volume control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6014519U true JPS6014519U (en) | 1985-01-31 |
Family
ID=30248515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10614583U Pending JPS6014519U (en) | 1983-07-08 | 1983-07-08 | volume control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6014519U (en) |
-
1983
- 1983-07-08 JP JP10614583U patent/JPS6014519U/en active Pending
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