CN207732951U - A kind of sound equipment for supporting more USB flash disks and more bluetooths to play - Google Patents
A kind of sound equipment for supporting more USB flash disks and more bluetooths to play Download PDFInfo
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- CN207732951U CN207732951U CN201721460065.XU CN201721460065U CN207732951U CN 207732951 U CN207732951 U CN 207732951U CN 201721460065 U CN201721460065 U CN 201721460065U CN 207732951 U CN207732951 U CN 207732951U
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- module
- controller module
- resistance
- sound equipment
- operational amplifier
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Abstract
The utility model discloses a kind of sound equipments for supporting more USB flash disks and more bluetooths to play, it includes main controller module, the main controller module is connected with USB module, bluetooth module, master volume switch control module and display screen, one or more submaster controller modules, the submaster controller module is connect by I2C buses with the main controller module, and submaster controller module is connected with USB module, bluetooth module and secondary volume switch control module；The sound equipment further includes having sequentially connected Dolby circuit, audio amplifier circuit and loud speaker, and the audio output port of the main controller module and submaster controller module is connect with the Dolby circuit.Sound equipment provided by the utility model can support the music of multiple USB flash disks or multiple bluetooth connections simultaneously, can play out diversified music effect, and then realize that DJ beats the music effect of disc player.
Description
Technical field
The utility model is related to stereo set field more particularly to a kind of sound equipments for supporting more USB flash disks and more bluetooths to play.
Background technology
Sound equipment is a kind of device applied on electronic equipment, is a kind of electronic equipment for playing sound, it is at me
Life in using than wide, be mainly used for playing various songs.Currently, existing sound equipment all cannot in the market
The music in the bluetooth and USB flash disk of 2 or more (containing 2) is played simultaneously, and function is more single, it is difficult to play out preferable music
Effect.
Utility model content
In order to overcome the deficiencies of the prior art and there are the problem of, the utility model provides a kind of more USB flash disks of support and more bluetooths
The sound equipment of broadcasting, which can play the music on multiple USB flash disks simultaneously, or can play the electronic equipment by bluetooth connection simultaneously
On music realize that DJ beats the music effect of disc player so as to play out diversified music effect.
The utility model is achieved through the following technical solutions：A kind of sound equipment for supporting more USB flash disks and more bluetooths to play,
Including main controller module, the main controller module be connected with USB module, bluetooth module, master volume switch control module and
Display screen, one or more submaster controller modules, the submaster controller module are connected by I2C buses and the main controller module
It connects, and submaster controller module is connected with USB module, bluetooth module and secondary volume switch control module；The sound equipment further includes
There are sequentially connected Dolby circuit, audio amplifier circuit and a loud speaker, the main controller module and submaster controller module
Audio output port is connect with the Dolby circuit.
Preferably, the sound equipment further includes having sequentially connected microphone input, microphone prime amplification module and microphone
Audio effect processing module.
Further, the main controller module is also associated with TF card module.
Further, the sound equipment further include have be all connected with the main controller module and submaster controller module it is infrared
Receiving module.
Preferably, the model AC4601 of the main controller module and the main control chip of submaster controller module；The words
The model CD2399 or PT2399 of the main control chip of cylinder audio effect processing module.
Sound equipment provided by the utility model can support the music of multiple USB flash disks or multiple bluetooth connections simultaneously, and have
Effect solves the problems, such as that audio interferes with each other, and the volume of the audio output of main controller module and each submaster controller module is only
Vertical control so as to play out diversified music effect, and then realizes that DJ beats the music effect of disc player；In addition, main control
It is connected by I2C buses between device module and each submaster controller module, can also solve the problems, such as shared display screen.
Description of the drawings
Fig. 1 is the circuit structure schematic block diagram of sound equipment described in the utility model embodiment.
Fig. 2 is the physical circuit figure of Dolby circuit described in the utility model embodiment.
Fig. 3 is the physical circuit figure of the main control chip in main controller module described in the utility model embodiment.
Fig. 4 is the physical circuit figure of the main control chip in the block of submaster controller mould described in the utility model embodiment.
Fig. 5 is at microphone input described in the utility model embodiment, microphone prime amplification module and microphone audio
Manage the particular circuit configurations figure of module.
Fig. 6 is the particular circuit configurations figure of audio amplifier circuit described in the utility model embodiment.
Specific implementation mode
For the ease of the understanding of those skilled in the art, below in conjunction with the drawings and specific embodiments to the utility model make into
One step is described in detail.
As shown in Fig. 1, a kind of sound equipment for supporting more USB flash disks and more bluetooths to play comprising main controller module, the master control
Device module processed is connected with USB module, bluetooth module, master volume switch control module and display screen, one or more sub-control
Device module, the submaster controller module is connect by I2C buses with the main controller module, and submaster controller module is connected with
USB module, bluetooth module and secondary volume switch control module；The sound equipment further includes having sequentially connected Dolby circuit, sound
The audio output port of frequency amplifying circuit and loud speaker, the main controller module and submaster controller module is electric with the noise reduction
Road connects.In the present embodiment, the sound equipment is by being arranged a main controller module and one or more submaster controller moulds, main control
It is connected by I2C buses between device module and submaster controller mould, and the audio output port of main controller module and submaster controller mould
By carrying out audio amplification after Dolby circuit again, finally just it is output in loud speaker, therefore can effectively solve audio and interfere with each other
The problem of；Simultaneously because independent volume control switch control module is respectively adopted in main controller module and submaster controller mould, because
This is with independent volume control effect, since a USB module and one is at least arranged in main controller module and submaster controller module
Bluetooth module so that the sound equipment can play out diversified music effect, and then realizes that DJ beats the music effect of disc player
Fruit.
It should be noted that in Fig. 1, only depicting one of submaster controller module, and and submaster controller
USB module, bluetooth module and the secondary volume switch control module of module connection, can select pair as needed in practical applications
The quantity of controller module (including SB modules connected to it, bluetooth module and secondary volume switch control module).
In a wherein preferred embodiment, the Dolby circuit includes the first Dolby circuit and the second Dolby circuit,
The audio amplifier circuit includes the first audio amplifier circuit and the second audio amplifier circuit；
As shown in Fig. 2, first Dolby circuit includes the first operational amplifier, several resistance and several capacitances, institute
The inverting input for stating the first operational amplifier passes sequentially through a resistance R7, capacitance C17 and resistance RFB2 and master controller mould
The digital-to-analogue conversion port of block connects, and the inverting input of the first operational amplifier also passes through resistance R15 and first operation
The output end of amplifier connects, and the output end of first operational amplifier passes sequentially through resistance R15, resistance R19, capacitance C30
And the connection of another digital-to-analogue conversion port of resistance RFB1 and main controller module, and the output end of first operational amplifier
It is also connect with the first audio amplifier circuit by a capacitance C19, the in-phase input end of first operational amplifier passes through an electricity
Resistance R21 is connect with voltage source VCC；
Second Dolby circuit includes second operational amplifier, and several resistance and several capacitances, second operation are put
The inverting input of big device passes sequentially through the digital-to-analogue conversion of a resistance R8, capacitance C29 and resistance RFB4 and submaster controller module
Port connects, and the inverting input of second operational amplifier also passes through the output of resistance R16 and the second operational amplifier
End connection, the output end of the second operational amplifier pass sequentially through resistance R16, resistance R20, capacitance C31 and resistance RFB3
It is connect with another digital-to-analogue conversion port of submaster controller module, and the output end of the second operational amplifier also passes through a capacitance
C21 is connect with the second audio amplifier circuit, and the in-phase input end of the second operational amplifier passes through a resistance R22 and voltage source
VCC connections.
In the present embodiment, master/slave volume switch control when adjusting audio signal directly by being connect with master/slave controller module
Device module processed is adjusted, and after master/slave controller module is handled again by Dolby circuit after carry out audio amplification again
Processing so that adjust audio signal without being adjusted by potentiometer, be both effectively simplified circuit, prevention is contacted by potentiometer
Bad and introducing noise, and the interference signal of potentiometer introducing is effectively prevented, and main controller module and submaster controller mould
Block by being connect again with audio amplifier circuit after the first Dolby circuit and the second Dolby circuit, is finally just output to loud speaker respectively
In, therefore can also effectively solve the problems, such as that audio interferes with each other.
As preferred embodiment, the sound equipment further includes having sequentially connected microphone input, microphone prime amplification mould
Block and microphone audio effect processing module.By be arranged these function modules (microphone input, microphone prime amplification module and
Microphone audio effect processing module) so that the sound equipment can effectively receive and export the voice signal of microphone.
In a wherein preferred embodiment, the main controller module is also associated with TF card module, passes through the TF card
Module so that the sound equipment can easily store music file and play the music file stored in TF card.In addition, the sound equipment
Further preferably include the infrared receiving module being all connected with the main controller module and submaster controller module, infrared is connect by this
Receive module so that the sound equipment can easily receive the control signal of IR remote controller, to facilitate user a long way off by red
Outer remote controler controls the sound equipment.
In the present embodiment, the model AC4601 of the main control chip of the main controller module and submaster controller module,
The physical circuit figure of main control chip in middle main controller module is as shown in Fig. 3, and submaster controller mould main control chip in the block
Physical circuit figure as shown in Fig. 4 (in Fig. 4 includes bluetooth module and USB module).
In a wherein preferred embodiment, the microphone input, microphone prime amplification module and microphone audio
The particular circuit configurations of processing module (wherein microphone input, microphone prime amplification module and microphone audio as shown in Fig. 5
The module region of processing module in figure 5 is divided into only rough division, and non-critical accurate division).This implementation
In example, the model CD2399 or PT2399 of the main control chip of the microphone audio effect processing module.Certainly, also may be used in practical application
Select microphone input, microphone prime amplification module and microphone audio effect processing module in the prior art.
In a wherein preferred embodiment, the main control chip of the audio amplifier circuit is preferably CSC3130, tool
Body circuit structure is as shown in Fig. 6.Certainly, audio amplifier circuit in the prior art also can be selected in practical application.
Compared with prior art, the sound equipment that the utility model embodiment provides has the advantages that：It can be propped up simultaneously
The music of multiple USB flash disks or multiple bluetooth connections is held, and solves the problems, such as that audio interferes with each other, and master controller mould
The volume of the audio output of block and each submaster controller module is independent control, so as to play out diversified music effect,
And then realize that DJ beats the music effect of disc player；In addition, being connected by I2C buses between main controller module and each submaster controller module
It connects, solves the problems, such as shared display screen.
Above-described embodiment is the preferable realization method of the utility model, is not the restriction to the utility model, not
Under the premise of the utility model design for being detached from the utility model, any obvious replacement is in the protection model of the utility model
Within enclosing.
Claims (7)
1. a kind of sound equipment for supporting more USB flash disks and more bluetooths to play, it is characterised in that：Including main controller module, the master controller
Module is connected with USB module, bluetooth module, master volume switch control module and display screen, one or more submaster controller moulds
Block, the submaster controller module is connect by I2C buses with the main controller module, and submaster controller module is connected with USB
Module, bluetooth module and secondary volume switch control module；
The sound equipment further includes having sequentially connected Dolby circuit, audio amplifier circuit and loud speaker, the master controller mould
Block and the audio output port of submaster controller module are connect with the Dolby circuit.
2. sound equipment according to claim 1, it is characterised in that：The sound equipment further includes having sequentially connected microphone to input
End, microphone prime amplification module and microphone audio effect processing module.
3. sound equipment according to claim 2, it is characterised in that：The main controller module is also associated with TF card module.
4. sound equipment according to any one of claims 1 to 3, it is characterised in that：The sound equipment further include have with it is described
The infrared receiving module that main controller module and submaster controller module are all connected with.
5. sound equipment according to claim 4, it is characterised in that：The master control of the main controller module and submaster controller module
The model AC4601 of chip.
6. sound equipment according to claim 2, it is characterised in that：The model of the main control chip of the microphone audio effect processing module
For CD2399 or PT2399.
7. sound equipment according to claim 1, it is characterised in that：The Dolby circuit includes the first Dolby circuit and the second drop
Noise cancellation circuit, the audio amplifier circuit include the first audio amplifier circuit and the second audio amplifier circuit；
First Dolby circuit includes the first operational amplifier, several resistance and several capacitances, first operational amplifier
Inverting input pass sequentially through the digital-to-analogue conversion port of a resistance R7, capacitance C17 and resistance RFB2 and main controller module
Connection, and the inverting input of the first operational amplifier is also connected by the output end of resistance R15 and first operational amplifier
It connects, the output end of first operational amplifier passes sequentially through resistance R15, resistance R19, capacitance C30 and resistance RFB1 and master
Another digital-to-analogue conversion port of controller module connects, and the output end of first operational amplifier also passes through a capacitance C19
It is connect with the first audio amplifier circuit, the in-phase input end of first operational amplifier passes through a resistance R21 and voltage source VCC
Connection；
Second Dolby circuit includes second operational amplifier, several resistance and several capacitances, the second operational amplifier
Inverting input pass sequentially through the digital-to-analogue conversion port of a resistance R8, capacitance C29 and resistance RFB4 and submaster controller module
Connection, and the inverting input of second operational amplifier is also connected by resistance R16 and the output end of the second operational amplifier
It connects, the output end of the second operational amplifier passes sequentially through resistance R16, resistance R20, capacitance C31 and resistance RFB3 and pair
Another digital-to-analogue conversion port of controller module connects, and the output end of the second operational amplifier also passes through a capacitance C21
It is connect with the second audio amplifier circuit, the in-phase input end of the second operational amplifier passes through a resistance R22 and voltage source VCC
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721460065.XU CN207732951U (en) | 2017-11-03 | 2017-11-03 | A kind of sound equipment for supporting more USB flash disks and more bluetooths to play |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721460065.XU CN207732951U (en) | 2017-11-03 | 2017-11-03 | A kind of sound equipment for supporting more USB flash disks and more bluetooths to play |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207732951U true CN207732951U (en) | 2018-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721460065.XU Active CN207732951U (en) | 2017-11-03 | 2017-11-03 | A kind of sound equipment for supporting more USB flash disks and more bluetooths to play |
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| CN (1) | CN207732951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979786A (en) * | 2017-11-03 | 2018-05-01 | 东莞市美之尊电子科技有限公司 | A kind of sound equipment for supporting more USB flash disks and the broadcasting of more bluetooths |
-
2017
- 2017-11-03 CN CN201721460065.XU patent/CN207732951U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107979786A (en) * | 2017-11-03 | 2018-05-01 | 东莞市美之尊电子科技有限公司 | A kind of sound equipment for supporting more USB flash disks and the broadcasting of more bluetooths |
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