JPH01147524U - - Google Patents
Info
- Publication number
- JPH01147524U JPH01147524U JP4205588U JP4205588U JPH01147524U JP H01147524 U JPH01147524 U JP H01147524U JP 4205588 U JP4205588 U JP 4205588U JP 4205588 U JP4205588 U JP 4205588U JP H01147524 U JPH01147524 U JP H01147524U
- Authority
- JP
- Japan
- Prior art keywords
- tone control
- amplifier
- variable resistor
- impedance network
- 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
- 238000010586 diagram Methods 0.000 description 5
Description
第１図は本考案のトーンコントロール回路の一
実施例を示す回路ブロツク図、第２図は同上の具
体的な回路図、第３図は第２図の回路によるトー
ンコントロール特性図、第４図及び第５図は従来
のトーンコントロール回路図、第６図及第７図は
第４図及び第５図の回路によるトーンコントロー
ル特性図である。
１，５１……演算増幅器、Ｚ１，Ｚ２，Ｚ３，
Ｚ４……インピーダンス回路網、６，４３……音
質調整用可変抵抗、５７……低域調整用可変抵抗
、６１……高域調整用可変抵抗。
Fig. 1 is a circuit block diagram showing one embodiment of the tone control circuit of the present invention, Fig. 2 is a specific circuit diagram of the same as above, Fig. 3 is a tone control characteristic diagram using the circuit of Fig. 2, and Fig. 4 5 are conventional tone control circuit diagrams, and FIGS. 6 and 7 are tone control characteristic diagrams using the circuits of FIGS. 4 and 5. 1, 51... operational amplifier, Z 1 , Z 2 , Z 3 ,
Z 4 ... Impedance circuit network, 6, 43... Variable resistor for adjusting sound quality, 57... Variable resistor for adjusting low range, 61... Variable resistor for adjusting high range.
Claims (1)
る電圧を増幅する増幅器を設け、インピーダンス
回路網Ｚ１とＺ３の一端を前記増幅器の出力端に
接続すると共に、他端にはそれぞれインピーダン
ス回路網Ｚ２とＺ４をアースとの間に接続し、Ｚ
１＝Ｚ４及びＺ２＝Ｚ３の条件よりなるブリツジ
回路を構成し、該ブリツジ回路の各中点をトーン
コントロール可変抵抗にて橋絡すると共に、該ト
ーンコントロール可変抵抗の摺動子を前記増幅器
に接続したことを特徴とするトーンコントロール
回路。 An amplifier is provided to amplify the voltage applied to the input terminal of the tone control circuit, one end of impedance network Z 1 and Z 3 is connected to the output end of the amplifier, and impedance network Z 2 and Z 3 are connected to the other end respectively. Connect Z4 to ground, and
A bridge circuit is constructed with the conditions of 1 = Z 4 and Z 2 = Z 3 , each midpoint of the bridge circuit is bridged with a tone control variable resistor, and the slider of the tone control variable resistor is A tone control circuit characterized by being connected to an amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4205588U JPH01147524U (en) | 1988-03-31 | 1988-03-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4205588U JPH01147524U (en) | 1988-03-31 | 1988-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01147524U true JPH01147524U (en) | 1989-10-12 |
Family
ID=31268480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4205588U Pending JPH01147524U (en) | 1988-03-31 | 1988-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01147524U (en) |
-
1988
- 1988-03-31 JP JP4205588U patent/JPH01147524U/ja active Pending