JPS59154911U - Noise muting circuit during switching - Google Patents
Noise muting circuit during switchingInfo
- Publication number
- JPS59154911U JPS59154911U JP4670483U JP4670483U JPS59154911U JP S59154911 U JPS59154911 U JP S59154911U JP 4670483 U JP4670483 U JP 4670483U JP 4670483 U JP4670483 U JP 4670483U JP S59154911 U JPS59154911 U JP S59154911U
- Authority
- JP
- Japan
- Prior art keywords
- switch
- switching
- movable section
- contact
- during
- 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)
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
図は本考案の一実施例を示す回路図である。
１・・・・・・スイッチ、２・・・・・・アンプ、３・
・・・・・アンプ、４・・・・・・トランジスタ、５・
・・・・・抵抗、６＝コンデンサ、７・・・・・・抵抗
、８・・・・・・電源切換用２接点型スイッチ、９・・
・・・・ショーティングタイプ２接点型スイッチ。The figure is a circuit diagram showing an embodiment of the present invention. 1...Switch, 2...Amplifier, 3.
...Amplifier, 4...Transistor, 5.
...Resistor, 6=Capacitor, 7...Resistor, 8...2-contact switch for power supply switching, 9...
...Shorting type 2 contact type switch.
Claims (1)
つのスイッチ切換状態ごとに該可動切片と導通接続され
る端子Ａと端子Ｂより成る２接点型スイッチを複数組同
時に切り換えられるスイッチを用いた切換回路を有する
音響機器において、該２接点型スイッチの一つを、スイ
ッチ切換動作過渡時のみ接点Ａと接点Ｂが可動切片によ
り短絡されるショーテイングタイプとし、接点Ａを電源
供給側に、接点Ｂをエミッタを接地しコレクタを信号ラ
インに接続したミューティング用トランジスタのベース
電流供給ラインに接続することにより、スイッチ切換過
渡時のみ、ミューティング用トランジスタにベース電流
を供給してＯＮさせ、スイッチ切換時に発生するノイズ
を低減することを特徴とする切換時ノイズミューティン
グ回路。A switch that can simultaneously switch multiple sets of two-contact type switches consisting of a movable section, a common terminal that is always electrically connected to the movable section, and terminals A and B that are electrically connected to the movable section for each of the two switch switching states is used. In an audio device having a switching circuit, one of the two-contact type switches is a shorting type in which contacts A and B are short-circuited by a movable piece only during a transition of switch switching operation, and contact A is connected to the power supply side. By connecting contact B to the base current supply line of the muting transistor whose emitter is grounded and whose collector is connected to the signal line, the base current is supplied to the muting transistor to turn it ON only during a switch change transition, and the switch is turned on. A switching noise muting circuit characterized by reducing noise generated during switching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4670483U JPS59154911U (en) | 1983-04-01 | 1983-04-01 | Noise muting circuit during switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4670483U JPS59154911U (en) | 1983-04-01 | 1983-04-01 | Noise muting circuit during switching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59154911U true JPS59154911U (en) | 1984-10-17 |
Family
ID=30177253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4670483U Pending JPS59154911U (en) | 1983-04-01 | 1983-04-01 | Noise muting circuit during switching |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59154911U (en) |
-
1983
- 1983-04-01 JP JP4670483U patent/JPS59154911U/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS59154911U (en) | Noise muting circuit during switching | |
| JPS5810185Y2 (en) | muting circuit | |
| JPS5848144U (en) | High frequency switch circuit device | |
| JPS59194228U (en) | Changeover switch device | |
| JPH0373043U (en) | ||
| JPS58173921U (en) | Gain switching circuit for current-voltage conversion | |
| JPS5939541U (en) | power switch circuit | |
| JPS58116315U (en) | Amplifier protection device | |
| JPS6055128U (en) | analog switch circuit | |
| JPS61139474U (en) | ||
| JPS5868744U (en) | switching circuit | |
| JPS58127412U (en) | Stereo tape recorder input circuit | |
| JPS5859295U (en) | Control current reduction circuit for automatic speaker switching | |
| JPS5911508U (en) | Muting device | |
| JPS60169937U (en) | switch circuit | |
| JPS597529U (en) | switch | |
| JPS6077139U (en) | Preset button radio mute device | |
| JPS60120505U (en) | switching circuit | |
| JPS5816916U (en) | Muting circuit | |
| JPS6170413U (en) | ||
| JPS60129791U (en) | Amplifier speaker switching device | |
| JPH0349700U (en) | ||
| JPS5969534U (en) | Input signal selection circuit | |
| JPS6126350U (en) | stereo indicator circuit | |
| JPS59187239U (en) | switch circuit |