CN209402713U - A kind of tone control circuit of number audio mixing amplifier - Google Patents
A kind of tone control circuit of number audio mixing amplifier Download PDFInfo
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- CN209402713U CN209402713U CN201920359878.2U CN201920359878U CN209402713U CN 209402713 U CN209402713 U CN 209402713U CN 201920359878 U CN201920359878 U CN 201920359878U CN 209402713 U CN209402713 U CN 209402713U
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Abstract
The utility model relates to digital audio mixing technical field, in particular to a kind of tone control circuit of digital audio mixing amplifier；The utility model includes controller J508, amplifier U511, capacitor C582, resistance R608, resistance R604, resistance R600, capacitor C619, resistance R671, resistance R653, resistance R643, capacitor C564；In the present invention, audio frequency control is carried out by controller and amplifier, keeps audio signal more stable, to preferably carry out audio frequency control；The utility model audio frequency control is stable and easy to control.
Description
Technical field
The utility model relates to digital audio mixing technical field, in particular to a kind of sound quality of digital audio mixing amplifier controls electricity
Road.
Background technique
Power-like amplifier is called switching power amplifier, and someone is referred to as digital power amplifier again now, its benefit
With the high-speed switch characteristic of transistor and the object point of low saturation voltage drop, efficiency is very high, theoretically can achieve 100%, actually
It can achieve 90%.D-type power amplifier can greatly reduce energy loss, reduce amplifier volume, in volume, efficiency and function
More demanding occasion has very big advantage in consumption.
Genus audio power amplifier is PWM type power amplifier, it not only has the characteristics that meet, also have reduce energy consumption and
Feature small in size；D-type audio power amplifier more adapts to the trend of miniaturization, however D-type audio power amplifier at present
Audio frequency control it is unstable and not easy to control.
Summary of the invention
Described above in order to overcome the shortcomings of, the purpose of the utility model is to provide a kind of sound quality of digital audio mixing amplifier
Control circuit carries out audio frequency control by controller and amplifier, keeps audio signal more stable, to preferably carry out sound
Frequency controls.
The technical scheme in the invention for solving the technical problem is:
A kind of tone control circuit of number audio mixing amplifier, wherein including controller J508, amplifier U511, capacitor
C582, resistance R608, resistance R604, resistance R600, capacitor C619, resistance R671, resistance R653, resistance R643, capacitor C564；
The 3rd foot of amplifier U511 is connect with one end of capacitor C582, and the other end of capacitor C582 is connect with one end of resistance R608, electricity
The other end of resistance R608 is connect with one end of resistance R604, and resistance R604 is connect with one end of resistance R600, and resistance R600's is another
One end is connect with the 1st foot of controller J508, and the 2nd foot of amplifier U511 is connect with one end of capacitor C619, capacitance
The other end of C619 is connect with one end of resistance R671, and the other end of resistance R671 is connect with one end of resistance R653, resistance
The other end of R653 is connect with one end of resistance R643, and the other end of resistance R643 is connect with the 3rd foot of controller J508, amplification
The 1st foot of device U511 is connect with one end of capacitor C564, and the other end of capacitor C564 is connect with output interface；Amplifier U511's
8th foot connects power supply.
As a kind of improvement of the utility model, the 1st foot of amplifier U511 respectively with one end of resistance R662, capacitor
One end of C596 connects, and the other end of resistance R662, the other end of capacitor C596 are connect with the 2nd foot of amplifier U511.
The 3rd foot of amplifier U511 is connect with one end of capacitor C609 as a further improvement of the utility model, capacitor
The other end of C609 is connect with the 2nd foot of amplifier U511.
As the further improvement of the utility model, the 8th foot of amplifier U511 respectively with one end of resistance R670, electricity
Hinder one end connection of one end of R624, one end of capacitor C574, capacitor 587, another termination power of resistance R624, capacitor C574
The other end connect and be grounded with one end of capacitor 587；The other end of resistance R670 is connect with one end of resistance R687, resistance
The other end of R687 is connect with the 3rd foot of amplifier U511,
As the further improvement of the utility model, resistance R670 also respectively with one end of capacitor C623, resistance R692
One end, amplifier U512 the 5th foot, the 6th foot of amplifier U512 is connected with the 7th foot, the other end and electricity of capacitor C623
It hinders the other end connection of R692 and is grounded.
As the further improvement of the utility model, capacitor C564 is also connect with one end of resistance R572, resistance R572
The other end ground connection.
As the further improvement of the utility model, the 4th foot of controller J508 respectively with one end of resistance R637, electricity
Hinder one end of R589, one end of capacitor C575, capacitor C601 one end connection, the other end of resistance R637 respectively with resistance
R643, resistance R653 connection, the other end of resistance R589 are connect with resistance R600, resistance R604 respectively, and capacitor C575's is another
End is connect with resistance R604, resistance R608 respectively, and the other end of capacitor C601 is connect with resistance R653, resistance R671 respectively.
As the further improvement of the utility model, one end of voltage-stablizer 2516 respectively with the 5th foot of controller J508,
Capacitor C575, resistance R604 connection, one end of voltage-stablizer 2517 are connect with capacitor C601, resistance R653, resistance R680 respectively, surely
The other end of depressor 2516 connect and is grounded with the other end of voltage-stablizer 2517.
In the present invention, audio frequency control is carried out by controller and amplifier, keeps audio signal more stable, thus
Preferably carry out audio frequency control；The utility model audio frequency control is stable and easy to control.
Detailed description of the invention
The utility model is described in detail by following preferred embodiments and attached drawing for ease of explanation,.
Fig. 1 is the circuit connection diagram of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
As shown in Figure 1, a kind of tone control circuit of digital audio mixing amplifier of the utility model, including controller
J508, amplifier U511, capacitor C582, resistance R608, resistance R604, resistance R600, capacitor C619, resistance R671, resistance
R653, resistance R643, capacitor C564.
The 3rd foot of amplifier U511 is connect with one end of capacitor C582, the other end of capacitor C582 and the one of resistance R608
End connection, the other end of resistance R608 are connect with one end of resistance R604, and resistance R604 is connect with one end of resistance R600, resistance
The other end of R600 is connect with the 1st foot of controller J508, and the 2nd foot of amplifier U511 is connect with one end of capacitor C619, electricity
The other end for holding capacitor C619 is connect with one end of resistance R671, and the other end of resistance R671 is connect with one end of resistance R653,
The other end of resistance R653 is connect with one end of resistance R643, and the other end of resistance R643 is connect with the 3rd foot of controller J508,
The 1st foot of amplifier U511 is connect with one end of capacitor C564, and the other end of capacitor C564 is connect with output interface；Amplifier
The 8th foot of U511 connects power supply.
In the present invention, audio frequency control is carried out by controller and amplifier, keeps audio signal more stable, thus
Preferably carry out audio frequency control；The utility model audio frequency control is stable and easy to control.
In order to make amplifier U511 pressure stabilizing pressure limiting, the 1st foot of amplifier U511 respectively with one end of resistance R662, capacitor
One end of C596 connects, and the other end of resistance R662, the other end of capacitor C596 are connect with the 2nd foot of amplifier U511；It puts
The 3rd foot of big device U511 is connect with one end of capacitor C609, and the other end of capacitor C609 is connect with the 2nd foot of amplifier U511.
In order to make amplifier U511 ground protection, the 8th foot of amplifier U511 respectively with one end of resistance R670, resistance
One end connection of one end of R624, one end of capacitor C574, capacitor 587, another termination power of resistance R624, capacitor C574's
The other end connect and is grounded with one end of capacitor 587；The other end of resistance R670 is connect with one end of resistance R687, resistance R687
The other end connect with the 3rd foot of amplifier U511；Resistance R670 also respectively with one end of capacitor C623, resistance R692 one
It holds, the 5th foot of amplifier U512, the 6th foot of amplifier U512 is connected with the 7th foot, the other end and resistance of capacitor C623
The other end of R692 is connected and is grounded.
Further, capacitor C564 is also connect with one end of resistance R572, the other end ground connection of resistance R572.
In order to keep controller J508 easy to control and stablize, make signal stabilization, the 4th foot of controller J508 respectively with resistance
One end connection of one end of R637, one end of resistance R589, one end of capacitor C575, capacitor C601, the other end of resistance R637
It is connect respectively with resistance R643, resistance R653, the other end of resistance R589 is connect with resistance R600, resistance R604 respectively, capacitor
The other end of C575 is connect with resistance R604, resistance R608 respectively, the other end of capacitor C601 respectively with resistance R653, resistance
R671 connection；One end of voltage-stablizer 2516 is connect with the 5th foot, capacitor C575, the resistance R604 of controller J508 respectively, voltage-stablizer
2517 one end is connect with capacitor C601, resistance R653, resistance R680 respectively, the other end and voltage-stablizer 2517 of voltage-stablizer 2516
The other end connection and be grounded.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (8)
1. it is a kind of number audio mixing amplifier tone control circuit, which is characterized in that including controller J508, amplifier U511,
Capacitor C582, resistance R608, resistance R604, resistance R600, capacitor C619, resistance R671, resistance R653, resistance R643, capacitor
C564；The 3rd foot of amplifier U511 is connect with one end of capacitor C582, and the other end of capacitor C582 and one end of resistance R608 connect
It connects, the other end of resistance R608 is connect with one end of resistance R604, and resistance R604 is connect with one end of resistance R600, resistance R600
The other end connect with the 1st foot of controller J508, the 2nd foot of amplifier U511 is connect with one end of capacitor C619, capacitor electricity
The other end for holding C619 is connect with one end of resistance R671, and the other end of resistance R671 is connect with one end of resistance R653, resistance
The other end of R653 is connect with one end of resistance R643, and the other end of resistance R643 is connect with the 3rd foot of controller J508, amplification
The 1st foot of device U511 is connect with one end of capacitor C564, and the other end of capacitor C564 is connect with output interface；Amplifier U511's
8th foot connects power supply.
2. a kind of tone control circuit of digital audio mixing amplifier according to claim 1, which is characterized in that amplifier
The 1st foot of U511 is connect with one end of one end of resistance R662, capacitor C596 respectively, the other end, the capacitor C596 of resistance R662
The other end connect with the 2nd foot of amplifier U511.
3. a kind of tone control circuit of digital audio mixing amplifier according to claim 2, which is characterized in that amplifier
The 3rd foot of U511 is connect with one end of capacitor C609, and the other end of capacitor C609 is connect with the 2nd foot of amplifier U511.
4. a kind of tone control circuit of digital audio mixing amplifier according to claim 3, which is characterized in that amplifier
The 8th foot of U511 connects with one end of one end of resistance R670, one end of resistance R624, one end of capacitor C574, capacitor 587 respectively
It connects, the other end of another termination power of resistance R624, capacitor C574 connect and is grounded with one end of capacitor 587；Resistance R670
The other end connect with one end of resistance R687, the other end of resistance R687 is connect with the 3rd foot of amplifier U511.
5. a kind of tone control circuit of digital audio mixing amplifier according to claim 4, which is characterized in that resistance R670
Also respectively with one end of capacitor C623, one end of resistance R692, amplifier U512 the 5th foot, the 6th foot of amplifier U512 and
7 feet are connected, and the other end of capacitor C623 connect and is grounded with the other end of resistance R692.
6. a kind of tone control circuit of digital audio mixing amplifier according to claim 5, which is characterized in that capacitor C564
It is also connect with one end of resistance R572, the other end ground connection of resistance R572.
7. a kind of tone control circuit of digital audio mixing amplifier according to claim 6, which is characterized in that controller
The 4th foot of J508 respectively with one end of resistance R637, one end of resistance R589, one end of capacitor C575, capacitor C601 one end
Connection, the other end of resistance R637 connect with resistance R643, resistance R653 respectively, the other end of resistance R589 respectively with resistance
R600, resistance R604 connection, the other end of capacitor C575 are connect with resistance R604, resistance R608 respectively, and capacitor C601's is another
End is connect with resistance R653, resistance R671 respectively.
8. a kind of tone control circuit of digital audio mixing amplifier according to claim 7, which is characterized in that voltage-stablizer
2516 one end is connect with the 5th foot, capacitor C575, the resistance R604 of controller J508 respectively, one end difference of voltage-stablizer 2517
Connect with capacitor C601, resistance R653, resistance R680, the other end of voltage-stablizer 2516 connect with the other end of voltage-stablizer 2517 and
Ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359878.2U CN209402713U (en) | 2019-03-21 | 2019-03-21 | A kind of tone control circuit of number audio mixing amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920359878.2U CN209402713U (en) | 2019-03-21 | 2019-03-21 | A kind of tone control circuit of number audio mixing amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209402713U true CN209402713U (en) | 2019-09-17 |
Family
ID=67899845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920359878.2U Active CN209402713U (en) | 2019-03-21 | 2019-03-21 | A kind of tone control circuit of number audio mixing amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209402713U (en) |
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2019
- 2019-03-21 CN CN201920359878.2U patent/CN209402713U/en active Active
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