JPS6387913U - - Google Patents
Info
- Publication number
- JPS6387913U JPS6387913U JP11237187U JP11237187U JPS6387913U JP S6387913 U JPS6387913 U JP S6387913U JP 11237187 U JP11237187 U JP 11237187U JP 11237187 U JP11237187 U JP 11237187U JP S6387913 U JPS6387913 U JP S6387913U
- Authority
- JP
- Japan
- Prior art keywords
- switch means
- resistance element
- variable resistance
- signal
- fixed contact
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Measurement Of Current Or Voltage (AREA)
- Attenuators (AREA)
- Control Of Amplification And Gain Control (AREA)
- Circuits Of Receivers In General (AREA)
Description
第１図は本考案の実施例を示す回路図、第２図
は第１図の動作を説明するための図、第３図は第
１図の回路をステレオ回路に応用した回路図、第
４図は従来のレベル調整回路の回路図、第５図は
第４図の動作を説明するための図である。
ＶＲ，ＶＲａ，ＶＲｂ…可変抵抗、Ｓ１〜Ｓ３
…スイツチ、Ｃ…コンデンサ。
Fig. 1 is a circuit diagram showing an embodiment of the present invention, Fig. 2 is a diagram for explaining the operation of Fig. 1, Fig. 3 is a circuit diagram in which the circuit of Fig. 1 is applied to a stereo circuit, The figure is a circuit diagram of a conventional level adjustment circuit, and FIG. 5 is a diagram for explaining the operation of FIG. 4. VR, VRa, VRb...variable resistor, S1 to S3
...Switch, C...Capacitor.
Claims (1)
が印加され他端に第２のスイツチを介して第２の
信号が印加され摺動端から該第１又は第２の信号
出力を導出する可変抵抗素子と、該可変抵抗素子
の両端に直列接続された第１、第２の抵抗と、該
第２の抵抗の一端と可変抵抗素子の一端との接続
点と基準電位間に接続された第３の抵抗とを備え
、前記第２のスイツチ手段の可動接点は前記第１
、第２の抵抗の接続点に接続され、第１の固定接
点には前記第２の信号が印加され、第２の固定接
点はコンデンサを介して基準電位に接続されて成
り、前記第１のスイツチ手段を開放し、第２のス
イツチ手段の可動接点を第１の固定接点側に切換
えた状態において、第２の信号出力が前記可変抵
抗素子の最小値から所定抵抗値まで略同一の出力
レベルで推移し、所定抵抗値以上では前記可変抵
抗素子の抵抗値に応じて変化するように構成した
ことを特徴とするレベル調整回路。 A first signal is applied to one end via a first switch means, a second signal is applied to the other end via a second switch, and the first or second signal output is derived from the sliding end. A variable resistance element, first and second resistors connected in series to both ends of the variable resistance element, and a connection point between one end of the second resistance and one end of the variable resistance element and a reference potential. a third resistor, the movable contact of the second switch means being a movable contact of the first switch means;
, is connected to the connection point of the second resistor, the second signal is applied to the first fixed contact, the second fixed contact is connected to the reference potential via a capacitor, and the first fixed contact is connected to the connection point of the second resistor. When the switch means is opened and the movable contact of the second switch means is switched to the first fixed contact side, the second signal output is at approximately the same output level from the minimum value of the variable resistance element to the predetermined resistance value. 2. A level adjustment circuit characterized in that the level adjustment circuit is configured to change in accordance with the resistance value of the variable resistance element when the resistance value exceeds a predetermined resistance value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11237187U JPS6348976Y2 (en) | 1987-07-22 | 1987-07-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11237187U JPS6348976Y2 (en) | 1987-07-22 | 1987-07-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6387913U true JPS6387913U (en) | 1988-06-08 |
| JPS6348976Y2 JPS6348976Y2 (en) | 1988-12-16 |
Family
ID=30993187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11237187U Expired JPS6348976Y2 (en) | 1987-07-22 | 1987-07-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6348976Y2 (en) |
-
1987
- 1987-07-22 JP JP11237187U patent/JPS6348976Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6348976Y2 (en) | 1988-12-16 |