JPH0216609U - - Google Patents
Info
- Publication number
- JPH0216609U JPH0216609U JP9559088U JP9559088U JPH0216609U JP H0216609 U JPH0216609 U JP H0216609U JP 9559088 U JP9559088 U JP 9559088U JP 9559088 U JP9559088 U JP 9559088U JP H0216609 U JPH0216609 U JP H0216609U
- Authority
- JP
- Japan
- Prior art keywords
- integrator
- pulse
- voltage
- supplied
- pulse generator
- 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 7
Landscapes
- Control Of Amplification And Gain Control (AREA)
Description
第１図は本考案になる音量コントロール回路の
一実施例のブロツク図、第２図は積分器の回路図
、第３図Ａ，Ｂはその一実施例の主音量５０の場
合の回路動作を説明するための図、第４図Ａ，Ｂ
はその一実施例の主音量５の場合の回路動作を説
明するための図、第５図Ａは本考案の他の実施例
のブロツク図、同図Ｂはそのスピーカ配置図、第
６図は従来の音量コントロール回路のブロツク図
、第７図Ａ〜Ｃ及び第８図Ａ〜Ｃは第６図に示し
た回路の動作を説明するための図である。
１……制御回路、２〜４……パルス発生器、２
ａ，３ａ，３ｂ，４ａ〜４ｄ……積分器、３ｃ，
４ｅ，４ｆ……反転器、５〜８……電子ボリウム
付アンプ、５ａ〜８ａ……スピーカ。
Fig. 1 is a block diagram of an embodiment of the volume control circuit according to the present invention, Fig. 2 is a circuit diagram of an integrator, and Figs. 3A and B show the circuit operation of the embodiment when the main volume is 50. Diagrams for explanation, Figures 4A and B
5A is a block diagram of another embodiment of the present invention, FIG. 5B is a speaker arrangement diagram thereof, and FIG. Block diagrams of conventional volume control circuits, FIGS. 7A-C and FIGS. 8A-C, are diagrams for explaining the operation of the circuit shown in FIG. 6. 1...Control circuit, 2-4...Pulse generator, 2
a, 3a, 3b, 4a-4d...integrator, 3c,
4e, 4f...Inverter, 5-8...Amplifier with electronic volume, 5a-8a...Speaker.
Claims (1)
イ比のパルスを生成する主音量コントロール用の
第１のパルス発生器と、 前記制御回路から供給される信号に応じたデユ
ーテイ比のパルスを生成する第２及び第３のパル
ス発生器と、 前記第１のパルス発生器からパルスが供給され
ると共に、外部から電源電圧が印加される第１の
積分器と、 前記第２のパルス発生器からパルスが供給され
ると共に、前記第１の積分器から直流電圧が印加
される第２の積分器と、 前記第２のパルス発生器から反転器を介してパ
ルスが供給されると共に、前記第１の積分器から
直流電圧が印加される第３の積分器と、 前記第３のパルス発生器からパルスが供給され
ると共に、前記第２の積分器から直流電圧が印加
される第４の積分器と、 前記第３のパルス発生器から反転器を介してパ
ルスが供給されると共に、前記第２の積分器から
直流電圧が印加される第５の積分器と、 前記第３のパルス発生器からパルスが供給され
ると共に、前記第３の積分器から直流電圧が印加
される第６の積分器と、 前記第３のパルス発生器から反転器を介してパ
ルスが供給されると共に、前記第３の積分器から
直流電圧が印加される第７の積分器と、 前記第４乃至第７の各積分器から直流電圧が印
加され、各スピーカの音量をその直流電圧に応じ
て調節する増幅器とより構成したことを特徴とす
る音量コントロール回路。[Claims for Utility Model Registration] A first pulse generator for main volume control that generates pulses with a duty ratio according to a signal supplied from a control circuit; and a pulse generator with a duty ratio according to a signal supplied from the control circuit. second and third pulse generators that generate ratio pulses; a first integrator to which the pulses are supplied from the first pulse generator and a power supply voltage is applied from the outside; and the second integrator. a second integrator to which a pulse is supplied from the pulse generator and a DC voltage is applied from the first integrator; and a pulse is supplied from the second pulse generator via an inverter. and a third integrator to which a DC voltage is applied from the first integrator; and a pulse is supplied from the third pulse generator, and a DC voltage is applied from the second integrator. a fourth integrator; a fifth integrator to which a pulse is supplied from the third pulse generator via an inverter and a DC voltage is applied from the second integrator; a sixth integrator to which a pulse is supplied from the pulse generator and a DC voltage is applied from the third integrator; and a pulse is supplied from the third pulse generator via an inverter. and a seventh integrator to which a DC voltage is applied from the third integrator; and a DC voltage is applied from each of the fourth to seventh integrators, and the volume of each speaker is adjusted according to the DC voltage. A volume control circuit characterized by comprising an amplifier for adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9559088U JPH0216609U (en) | 1988-07-19 | 1988-07-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9559088U JPH0216609U (en) | 1988-07-19 | 1988-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0216609U true JPH0216609U (en) | 1990-02-02 |
Family
ID=31320272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9559088U Pending JPH0216609U (en) | 1988-07-19 | 1988-07-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0216609U (en) |
-
1988
- 1988-07-19 JP JP9559088U patent/JPH0216609U/ja active Pending
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