CN207443114U - A kind of digital power amplifier - Google Patents
A kind of digital power amplifier Download PDFInfo
- Publication number
- CN207443114U CN207443114U CN201720969065.6U CN201720969065U CN207443114U CN 207443114 U CN207443114 U CN 207443114U CN 201720969065 U CN201720969065 U CN 201720969065U CN 207443114 U CN207443114 U CN 207443114U
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Abstract
The utility model discloses a kind of digital power amplifiers, including audio source processor, signal processing module, main control MCU module, D class amplifier modules and low-pass filtering module, main control MCU module connects signal processing module, audio source processor connects signal processing module, signal processing module connects D class amplifier modules, D class amplifiers module connects low-pass filtering module, low-pass filtering module connection tone playing equipment.Input input terminal connection analog audio signal source, digital audio source and the microphone signal source of audio processing modules.Main control MCU module connection RS232 rs 232 serial interface signals, infrared control signal, button and display lamp.The utility model supports the input of analog audio signal source, digital audio source, moving-coil or capacitance microphone, microphone automatic identification, when Audio conversion support it is seamless but change, band EQ, BASS and TREBLE are adjusted；RS232 rs 232 serial interface signals are connected with the machine, realize that RS232 controls the machine；Infrared control signal connects the machine, realizes infrared control the machine.
Description
Technical field
The utility model is related to a kind of digital power amplifiers.
Background technology
Traditional digital power amplifier control mode is single, only exists local physical button control；Audio input source
Often analog audio signal, digital audio and video signals can not work；Microphone signal needs artificial selection, flexibility when inputting
Difference.So already present digital power amplifier, which exists in the upper inconvenient, input of control, has limitation, microphone input to need manual switching
Defect.And be a PC now, cell phone is prevailing, audio-source is diversified, machine increasingly needs epoch of hommization.It is so anxious
Need a equipment that can receive multisignal source input.
More than deficiency, it is to be improved.
Utility model content
In order to overcome the shortcomings of existing technology, the utility model provides a kind of digital power amplifier.
Technical solutions of the utility model are as described below：
A kind of digital power amplifier, which is characterized in that including audio source processor, signal processing module, main control MCU mould
Block, D class amplifier modules and low-pass filtering module, the main control MCU module connect the signal processing module, the audio-source
Processor connects the signal processing module, and the signal processing module connects the D classes amplifier module, the D classes amplifier mould
Block connects the low-pass filtering module, and the low-pass filtering module connects tone playing equipment.
Further, the input terminal connection analog audio signal source of the audio source processor, digital audio source and
Microphone signal source.
Further, audio format modular converter, digital-to-analogue conversion module, input are equipped in the audio source processor
Handover module and amplifier chip.
Further, the microphone signal source connects the amplifier chip, and the amplifier chip connects the signal
Processing module.
Further, the analog audio signal source connects the input handover module, and the input handover module connects
The amplifier chip is connect, the amplifier chip connects the signal processing module.
Further, the digital audio source connects the audio format modular converter, and the audio format turns
It changes the mold block and connects the digital-to-analogue conversion module, the digital-to-analogue conversion module connects the input handover module, described
It inputs handover module and connects the amplifier chip, the amplifier chip connects the signal processing module.
Further, the main control MCU module connection RS232 rs 232 serial interface signals, infrared control signal, button and display lamp.
Further, main control MCU module is equipped with electrical level transferring chip, described in electrical level transferring chip connection
RS232 rs 232 serial interface signals.
According to the utility model of said program, its advantage is, the utility model Ensemble simulation signal, number letter
Number and microphone signal be integrated, RS232 and the infrared mixed audio digital power amplifier being integrated.Support analogue audio frequency letter
Number source, the input of digital audio source, moving-coil or capacitance microphone, microphone automatic identification, when Audio conversion, are supported seamless
But change, band EQ, BASS and TREBLE are adjusted；RS232 rs 232 serial interface signals are connected with the machine, realize that RS232 controls the machine；Infrared control
Signal connects the machine, realizes infrared control the machine.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the audio-source processor structure schematic diagram of the utility model.
Fig. 3 is the main control MCU module structure diagram of the utility model.
Fig. 4 is the electric power system structure diagram of the utility model.
Specific embodiment
Below in conjunction with the accompanying drawings and the utility model is further described in embodiment：
As shown in Figure 1, a kind of digital power amplifier, including audio source processor, signal processing module, main control MCU mould
Block, D class amplifier modules and low-pass filtering module, main control MCU module connection signal processing module, audio source processor connection letter
Number processing module, signal processing module connection D class amplifier modules, D class amplifiers module connection low-pass filtering module, low-pass filtering mould
Block connects tone playing equipment.
As shown in Fig. 2, input terminal connection analog audio signal source RCA, the digital audio source S/ of audio source processor
PDIF and microphone signal source MIC.Microphone automatic identification inputs, moving-coil microphone input including selection capacitance microphone,
LINE is inputted.
Be equipped in audio source processor audio format modular converter, digital-to-analogue conversion module DAC, input handover module and
Amplifier chip；Microphone signal source connects amplifier chip, amplifier chip connection signal processing module；Analog audio signal source connects
Input handover module, input handover module connection amplifier chip, amplifier chip connection signal processing module；Digital audio source
Audio format modular converter, audio format modular converter connection digital-to-analogue conversion module are connected, digital-to-analogue conversion module connects
Connect input handover module, input handover module connection amplifier chip, amplifier chip connection signal processing module.
In the present embodiment, the utility model audio source processor is by audio format modular converter, digital-to-analogue conversion mould
Block, input handover module and amplifier chip composition.Handover module is inputted as analog audio signal RCA, 3.5mm terminal and number
The selection switching of word audio signal S/PDIF, audio format modular converter realize that digital audio and video signals S/PDIF is converted into IIS lattice
IIS is converted into analog audio signal RCA by formula, digital-to-analogue conversion module, and amplifier chip realizes microphone signal source MIC and mould
Intend the automatic audio mixing of one of audio signal source RCA, 3.5mm terminal, digital audio source S/PDIF, audio signal that treated
It send to signal processing module.The utility model supports analog audio signal source RCA, supports digital audio source S/PDIF, branch
Hold microphone signal source MIC, when Audio conversion support it is seamless but change, be not required to manually select, flexibility is good.
As shown in figure 3, main control MCU module connection RS232 rs 232 serial interface signals, infrared control signal, button and display lamp.Master control
MCU module is equipped with electrical level transferring chip, and electrical level transferring chip connects the RS232 rs 232 serial interface signals.
In the present embodiment, the utility model main control MCU module is by electrical level transferring chip, signal processing module and master control
MCU is formed.Signal processing chip realizes that the EQ adjustings of signal, BASS, TREBLE are adjusted, and is controlled by electrical level transferring chip by UART
System.Main control MCU realizes conversions of the RS232 to serial ports level for electrical level transferring chip.Button, infrared and lamp show directly controlled
In main control MCU.
As shown in figure 4, the utility model electric power system includes+48V ,+24V ,+15V, -15V ,+9V ,+3.3V.Wherein+48
It powers to capacitance microphone MIC；+ 24V powers to D classes amplifier；+ 15V/-15V powers to audio source processor；+ 9V gives
Signal processing is powered；+ 3.3V powers to main control MCU module.
It should be appreciated that for those of ordinary skills, can be improved or converted according to the above description,
And all these modifications and variations should all belong to the protection domain of the appended claims for the utility model.
Illustrative description is carried out to the utility model patent above in conjunction with attached drawing, it is clear that the reality of the utility model patent
Now be not subject to the restrictions described above, if employ the utility model patent methodology and technical solution carry out it is various
Improve or it is not improved the design of the utility model patent and technical solution are directly applied into other occasions, in this reality
With in new protection domain.
Claims (8)
1. a kind of digital power amplifier, which is characterized in that including audio source processor, signal processing module, main control MCU mould
Block, D class amplifier modules and low-pass filtering module, the main control MCU module connect the signal processing module, at the audio-source
It manages device and connects the signal processing module, the signal processing module connects the D classes amplifier module, the D classes amplifier module
The low-pass filtering module is connected, the low-pass filtering module connects tone playing equipment.
2. digital power amplifier according to claim 1, which is characterized in that the input terminal of the audio source processor connects
Connect analog audio signal source, digital audio source and microphone signal source.
3. digital power amplifier according to claim 2, which is characterized in that audio is equipped in the audio source processor
Format converting module, digital-to-analogue conversion module, input handover module and amplifier chip.
4. digital power amplifier according to claim 3, which is characterized in that the microphone signal source connects the fortune
Chip is put, the amplifier chip connects the signal processing module.
5. digital power amplifier according to claim 3, which is characterized in that described in the analog audio signal source connection
Handover module is inputted, the input handover module connects the amplifier chip, and the amplifier chip connects the signal processing mould
Block.
6. digital power amplifier according to claim 3, which is characterized in that described in the digital audio source connection
Audio format modular converter, the audio format modular converter connect the digital-to-analogue conversion module, and the digital simulation turns
It changes the mold block and connects the input handover module, the input handover module connects the amplifier chip, the amplifier chip connection
The signal processing module.
7. digital power amplifier according to claim 1, which is characterized in that the main control MCU module connection RS232 strings
Message number, infrared control signal, button and display lamp.
8. digital power amplifier according to claim 7, which is characterized in that main control MCU module is equipped with level conversion
Chip, the electrical level transferring chip connect the RS232 rs 232 serial interface signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720969065.6U CN207443114U (en) | 2017-08-04 | 2017-08-04 | A kind of digital power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720969065.6U CN207443114U (en) | 2017-08-04 | 2017-08-04 | A kind of digital power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207443114U true CN207443114U (en) | 2018-06-01 |
Family
ID=62300784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720969065.6U Active CN207443114U (en) | 2017-08-04 | 2017-08-04 | A kind of digital power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207443114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110189559A (en) * | 2019-07-04 | 2019-08-30 | 山东中医药高等专科学校 | A kind of intelligence pronunciation of English tutoring system |
-
2017
- 2017-08-04 CN CN201720969065.6U patent/CN207443114U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110189559A (en) * | 2019-07-04 | 2019-08-30 | 山东中医药高等专科学校 | A kind of intelligence pronunciation of English tutoring system |
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 4th floor, 6th floor, 2nd floor, G building, jinxiongda Science Park, 105 huanguan South Road, Dahe community, Guanlan street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Dongming Juchuang Electronics Co.,Ltd. Address before: 518000 4th floor, 6th floor, 2nd floor, G building, jinxiongda Science Park, 105 huanguan South Road, Dahe community, Guanlan street, Longhua District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN PTN ELECTRONICS Ltd. |
|
| CP01 | Change in the name or title of a patent holder |