JPS5984911U - volume adjustment circuit - Google Patents
volume adjustment circuitInfo
- Publication number
- JPS5984911U JPS5984911U JP18042782U JP18042782U JPS5984911U JP S5984911 U JPS5984911 U JP S5984911U JP 18042782 U JP18042782 U JP 18042782U JP 18042782 U JP18042782 U JP 18042782U JP S5984911 U JPS5984911 U JP S5984911U
- Authority
- JP
- Japan
- Prior art keywords
- output
- volume
- circuit
- flip
- comparator
- 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
- Amplifiers (AREA)
- 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図はこの考案による音量調整回路の一実施例を示す
回路図、第２図は第１図に示す音量制御用ボリュームの
特性図である。
Ｘ・・・電源オン検出回路、ＦＦ・・・フリップフロラ
□プ回路、Ａ・・・コンパレータ、Ｂ・・・電
子ボリューム、Ｇ□、Ｇ、・・・インバータ、Ｇ２・・
・ナントゲート、Ｇ３・・・アンドゲート、Ｑ□、 Ｇ
２・・・トランジスタ、Ｒ１−Ｒ６、・・抵抗、Ｃ□・
・・コンデンサ。FIG. 1 is a circuit diagram showing an embodiment of the volume control circuit according to this invention, and FIG. 2 is a characteristic diagram of the volume control volume shown in FIG. 1. X...Power-on detection circuit, FF...Flip floral circuit, A...Comparator, B...Electronic volume, G□, G,...Inverter, G2...
・Nant Gate, G3...And Gate, Q□, G
2...Transistor, R1-R6,...Resistor, C□・
...Capacitor.
Claims (1)
ン検出回路の出力によってセットされるフリップフロッ
プ回路と、音量制御用ボリュームの出力信号が設定値を
越えた時に出力を発生するコンパレータと、このコンパ
レータの出力と前記フリップフロップ回路の出力信号と
の一致時にオンされて前記音量制御用ボリュームの出力
に応じて音量制御を行なう電子ボリュームの出力をアー
スに落すスイッチング素子と、前記スイッチング素子の
オン時に予め定められたレベルの音声信号を送出する音
量設定回路と、前記コンパレータの出力と前記フリップ
フロップ回路をリセットするゲート回路とを備えた音量
調整回路。A power-on detection circuit that detects when the power is turned on, a flip-flop circuit that is set by the output of this power-on detection circuit, a comparator that generates an output when the output signal of the volume control volume exceeds a set value, and a switching element that is turned on when the output of the comparator and the output signal of the flip-flop circuit match and drops the output of an electronic volume that performs volume control according to the output of the volume control volume to ground; A volume adjustment circuit comprising: a volume setting circuit that sends out an audio signal at a predetermined level; and a gate circuit that resets the output of the comparator and the flip-flop circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18042782U JPS5984911U (en) | 1982-11-29 | 1982-11-29 | volume adjustment circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18042782U JPS5984911U (en) | 1982-11-29 | 1982-11-29 | volume adjustment circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5984911U true JPS5984911U (en) | 1984-06-08 |
Family
ID=30391215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18042782U Pending JPS5984911U (en) | 1982-11-29 | 1982-11-29 | volume adjustment circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5984911U (en) |
-
1982
- 1982-11-29 JP JP18042782U patent/JPS5984911U/en active Pending
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