CN207677971U - Three road audio power amplifiers of one kind and broadcast system - Google Patents
Three road audio power amplifiers of one kind and broadcast system Download PDFInfo
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- CN207677971U CN207677971U CN201721811076.8U CN201721811076U CN207677971U CN 207677971 U CN207677971 U CN 207677971U CN 201721811076 U CN201721811076 U CN 201721811076U CN 207677971 U CN207677971 U CN 207677971U
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Abstract
The three road audio power amplifier of one kind and broadcast system that the utility model embodiment provides, belong to audio power amplifier technical field.The application controls chip and digital audio power amplifier chips by the way that audio-frequency transformer module, AUX signal circuits, bluetooth module, electronic sound volume is arranged, and controller, the broadcasting of background music can be allowed to realize that diversification, personalization play, solve the problems, such as the insufficient of public address system.And while can easily realize original public address system function, the broadcasting control function of Bluetooth of mobile phone and local audio is can also be achieved, into without the control by nurse station or Central Control Room, realizes the selection of different sources of sound and the big minor adjustment of volume.And after enabling Bluetooth function or AUX functions, public address system can not be depended in switching and the regulatory function for locally realizing background music, the broadcasting of hommization can be carried out by the background music of people liked, meet the broadcasting demand to different background music, it is convenient to use.
Description
Technical field
The utility model is related to audio power amplifier technical fields, in particular to a kind of three road audio power amplifiers and extensively
Broadcast system.
Background technology
In the public address system of hospital operating room, it is integrated with background music system, fire protection alarm system, broadcast system
Deng under normal circumstances, this public address system is in addition to having a broadcasting background music, outside broadcast notice latency function, disappears encountering
When anti-alarm, it can realize that automatic area-selecting or manual constituency carry out urgent broadcast to region of meeting accident.In this public address system, institute
Some control all concentrates on nurse station or Central Control Room, and the background music play system in existing public address system also rests on
Old system layout carries out background music broadcasting management on Central Control Room or nurse station, is played to currently popular bluetooth, personalized
It plays, local broadcasting etc. is serious to be restricted, and cannot preferably realize that the background music of hommization plays management and operates.Therefore, how
Solve the above problems the technical issues of being current urgent need to resolve.
Utility model content
The purpose of this utility model is to provide a kind of three road audio power amplifiers and broadcast systems, can improve above-mentioned skill
Art problem.
What the embodiments of the present invention were realized in：
In a first aspect, the utility model provides a kind of three road audio power amplifiers comprising controller, audio-frequency transformer mould
Block, AUX signal circuits, bluetooth module, electronic sound volume control chip and digital audio power amplifier chips, the audio-frequency transformer mould
Block, the AUX signal circuits, the bluetooth module, electronic sound volume control chip and the digital audio-power amplifier chip are equal
It is coupled with the controller, the electronic sound volume control chip is coupled with the digital audio-power amplifier chip.
In the utility model preferred embodiment, above-mentioned AUX signal circuits include：First resistor, slide resistor and
Second resistance, one end of the first resistor are electrically connected with the controller, the other end of the first resistor and the sliding
One end of resistor connects, and the other end of the slide resistor is connect with the second resistance.
In the utility model preferred embodiment, above-mentioned further includes the first capacitance and the second capacitance, first capacitance
One end connect with the connects end altogether of the slide resistor and the second resistance, the other end of first capacitance ground connection, institute
The one end for stating the second capacitance is connect with the second resistance, the other end ground connection of second capacitance.
In the utility model preferred embodiment, above-mentioned further includes communication module, the communication module and the control
Device couples.
In the utility model preferred embodiment, above-mentioned further includes loudspeaker, the loudspeaker and the digital audio-power amplifier
Chip couples.
In the utility model preferred embodiment, above-mentioned further includes fire-fighting module, the fire-fighting module and the control
Device couples.
In the utility model preferred embodiment, above-mentioned further includes power module, the power module and the control
Device couples.
In the utility model preferred embodiment, the model M2429 of above-mentioned electronic sound volume control chip.
In the utility model preferred embodiment, the model YDA138-E of above-mentioned digital audio-power amplifier chip.
Second aspect, the utility model provide a kind of broadcast system, include three as described in above-mentioned any one embodiment
Road audio power amplifier.
The advantageous effect of the utility model embodiment is：The utility model embodiment provides a kind of three road audio power amplifiers
And broadcast system, control chip and number by the way that audio-frequency transformer module, AUX signal circuits, bluetooth module, electronic sound volume is arranged
Audio frequency power amplifier chip and controller can allow the broadcasting of background music to realize that diversification, personalization are played, solved public
The insufficient problem of broadcast system.And while can easily realize original public address system function, it can also be achieved mobile phone
The broadcasting control function of bluetooth and local audio realizes different sources of sound into without the control by nurse station or Central Control Room
The big minor adjustment of selection and volume.It, can be in the switching for locally realizing background music and after enabling Bluetooth function or AUX functions
And regulatory function, public address system is not depended on, the broadcasting of hommization, satisfaction pair can be carried out by the background music of people liked
The broadcasting demand of different background music, it is convenient to use.
Other feature and advantage of the utility model will illustrate in subsequent specification, also, partly from specification
It becomes apparent, or is understood by implementing the utility model embodiment.The purpose of this utility model and other advantages can
It realizes and obtains by specifically noted structure in the specification, claims and attached drawing write.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram for three road audio power amplifier that the utility model first embodiment provides；
Fig. 2 is a kind of circuit diagram of the AUX signal circuits of three road audio power amplifier shown in FIG. 1；
Fig. 3 is a kind of circuit diagram of the AUX signal circuits of three road audio power amplifier shown in FIG. 1；
Fig. 4 is a kind of structural schematic diagram for broadcast system that the utility model second embodiment provides；
Icon：Tri- road audio power amplifiers of 100-；110- controllers；120- audio-frequency transformer modules；130-AUX signals
Circuit；Bluetooth module 140；150- electronic sound volumes control chip；160- digital audio-power amplifier chips；170- communication modules；
180- loudspeaker；190- fire-fighting modules；191- power modules；200- broadcast systems；210- broadcasting equipments.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or
The utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the utility model and letter
Change description, do not indicate or imply the indicated device or element must have a particular orientation, with specific azimuth configuration and
Operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second ", " third " etc. are only used for area
Divide description, is not understood to indicate or imply relative importance.
In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and
It is that can be slightly tilted.It is not to indicate the structure if "horizontal" refers to only that its direction is more horizontal with respect to for "vertical"
It has to fully horizontally, but can be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, can also be electrical connection；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
First embodiment
Fig. 1 to Fig. 3 is please referred to, the present embodiment provides a kind of three road audio power amplifiers 100 comprising controller 110, audio
Transformer module 120, AUX signal circuits 130, bluetooth module 140, electronic sound volume control chip 150, digital audio-power amplifier chip
160, communication module 170, loudspeaker 180, fire-fighting module 190 and power module 191.
In the present embodiment, the controller 110 respectively with the audio-frequency transformer module 120, AUX signal circuits 130,
Bluetooth module 140, electronic sound volume control chip 150, digital audio-power amplifier chip 160, communication module 170,190 and of fire-fighting module
Power module 191 couples.
In the present embodiment, the controller 110 can be general processor, including central processing unit (Central
Processing Unit, CPU), can also be digital signal processor (Digital Signal Processing, DSP), specially
With integrated circuit (Application Specific IntegratedCircuit, ASIC), ready-made programmable gate array
(FieldProgrammableGate Array, FPGA) either other programmable logic device, discrete gate or transistor logic
Device, discrete hardware components.
In the present embodiment, the model of the controller 110 can be STM32F103C8T6, can also be
STM32F103VET6 can also be stm32f107cct6.Here, being not especially limited.
In the present embodiment, the audio-frequency transformer module 120 is for handling public broadcasting audio signal, example
Such as, public broadcasting audio signal is the audio signal of 110V, is passed through by treated the audio of the audio-frequency transformer module 120
The processing of digital audio-power amplifier chip 160 is sent to loudspeaker 180, realizes sound output.
In the present embodiment, the model of the audio-frequency transformer module 120 can be M-97060, can also be ATS-
117.Here, being not especially limited.
In the present embodiment, the AUX signal circuits 130 are used to receive the audio signal input of the equipment such as mobile phone/MP3,
Realize the processing of local device audio, and audio signal is sent to control by treated by the AUX signal circuits 130
After device 110, then digital audio-power amplifier chip 160 is sent to by the controller 110, to be sent to loudspeaker 180, realizes that sound is defeated
Go out.
In the present embodiment, the AUX signal circuits 130 include：First resistor R1, slide resistor R, second resistance
R2, the first capacitance C1 and the second capacitance C2.One end of the first resistor R1 is electrically connected with the controller 110, and described first
The other end of resistance R1 is connect with one end of the slide resistor R, the other end of the slide resistor R and second electricity
Hinder R2 connections.One end of the first capacitance C1 is connect with the connects end altogether of the slide resistor R and the second resistance R2, institute
The other end ground connection of the first capacitance C1 is stated, one end of the second capacitance C2 is connect with the second resistance R2, second electricity
Hold the other end ground connection of C2.
In the present embodiment, the bluetooth module 140 is used for for user by the Bluetooth function on mobile phone, with the bluetooth
Module 140 carries out bluetooth connection, so that after successful matching, you can the audio on mobile phone is realized in local broadcasting, and
Music content can be arbitrarily operated by mobile phone.
In the present embodiment, the bluetooth module 140 is coupled with the controller 110.
In the present embodiment, the bluetooth module 140 can be JQ8400, can also be BLK-MD-BC04-B.
This, is not especially limited.
In the present embodiment, the data input pin of the electronic sound volume control chip 150 is coupled with the controller 110,
The data output end of the electronic sound volume control chip 150 is coupled with the digital audio-power amplifier chip 160.The electronic sound volume
Control adjusting of the chip 150 for realizing volume of music.
In this embodiment, it is preferred that the electronic sound volume control chip 150 is two-channel.
In the present embodiment, the model of the electronic sound volume control chip 150 can be M2429, can also be
PT2257-S.Preferably, the model M2429 of the electronic sound volume control chip 150.
In the present embodiment, the digital audio-power amplifier chip 160 will be for that will pass through the controller 110 and the electronics
Treated the audio signal transmission of volume control chip 150 is to the loudspeaker 180, to realize that sound exports.
In the present embodiment, the model of the digital audio-power amplifier chip 160 can be YDA138-E, can also be
PCM1770.Preferably, the model YDA138-E of the digital audio-power amplifier chip 160.
In the present embodiment, the communication module 170 is any one in ZigBee chips, wifi chip or GPRS chips
Kind.For example, when the communication module 170 is the ZigBee chips, the model of the ZigBee chips can be CC2430
Either model CC2530.Here, being not especially limited.
In the present embodiment, the communication module 170 is coupled with the controller 110.
In the present embodiment, by the way that the controller 110 to be connect with the communication module 170, to realize concentration
Control and region control function, facilitate networking control.
In the present embodiment, the loudspeaker 180 are for exporting audio.The loudspeaker 180 and the digital audio-power amplifier core
Piece 160 couples.
In this embodiment, it is preferred that the loudspeaker 180 are ceiling speaker.For example, the power of the ceiling speaker can be with
It is 3W, 6W, 10W, 20W, 40W etc..Here, being not especially limited.
In the present embodiment, the fire-fighting module 190 is used in the case where an emergency situation is encountered so that broadcast system can be immediately
Into working condition, and carry out urgent broadcast.
In the present embodiment, the fire-fighting module 190 is coupled with the controller 110.
In the present embodiment, the model of the fire-fighting module 190 can be GST-LD-8321, can also be GST-
LD-8300, here, being not especially limited.
In the present embodiment, the power module 191 is used to power for three road audio power amplifier 100, the power supply
Module 191 is coupled with the controller 110.
In the present embodiment, the power module 191 can be accumulator, can also be rechargeable battery, can also be electricity
Source adapter.When the power module 191 is power supply adaptor, the power supply adaptor is used to convert alternating current, from
And it is that three road audio power amplifier 100 is powered.
The operation principle of three road audio power amplifiers 100 is：Three road audio power amplifier 100 passes through the audio-frequency transformer
Module 120 acquires public broadcasting audio signal and is handled, then audio passes through digital audio-power amplifier chip 160 by treated
Processing, be sent to loudspeaker 180, realize sound output.And mobile phone/MP3 can also be received by the AUX signal circuits 130
Etc. equipment audio signal input, realize local device audio processing, and by the AUX signal circuits 130 will handle
After audio signal afterwards is sent to controller 110, then digital audio-power amplifier chip 160 is sent to by the controller 110, to
Loudspeaker 180 are sent to, realize sound output.And it is allowed users to through the bluetooth on mobile phone by the bluetooth module 140
Function carries out bluetooth connection, so that after successful matching, you can realize the audio on mobile phone with the bluetooth module 140
In local broadcasting, and it can arbitrarily operate music content by mobile phone.So that it is more that the broadcasting of background music can be allowed to realize
Memberization, personalization play, and solve the problems, such as the insufficient of public address system.Make it possible to the background music liked according to user
The broadcasting for carrying out hommization, meets broadcasting demand of the different user to different background music, and convenient to use.
Second embodiment
Fig. 4 is please referred to, the present embodiment provides a kind of broadcast systems 200 comprising broadcasting equipment 210 and three road audio frequency power amplifiers
Device 100.
In the present embodiment, three road audio power amplifier 100 is coupled with the broadcasting equipment 210, for described wide
The broadcasting of background music in broadcast system 200 realizes that diversification, personalization play.
In the present embodiment, the quantity of the broadcasting equipment 210 is at least one.
In conclusion the utility model provides three road audio power amplifiers 100 of one kind and broadcast system 210, pass through setting
Audio-frequency transformer module 120, AUX signal circuits 130, bluetooth module 140, electronic sound volume control chip 150, digital audio-power amplifier
Chip 160 and controller 110 can allow the broadcasting of background music to realize that diversification, personalization play, and solve public wide
The insufficient problem of broadcast system.And while can easily realize original public address system function, mobile phone indigo plant can also be achieved
The broadcasting control function of tooth and local audio realizes the choosing of different sources of sound into without the control by nurse station or Central Control Room
It selects and the big minor adjustment of volume.And after enabling Bluetooth function or AUX functions, can in the switching for locally realizing background music and
Regulatory function does not depend on public address system, and the broadcasting of hommization can be carried out by the background music of people liked, is met to not
It is convenient to use with the broadcasting demand of background music.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of three road audio power amplifiers, which is characterized in that including：Controller, audio-frequency transformer module, AUX signal circuits, indigo plant
Tooth module, electronic sound volume control chip and digital audio power amplifier chips, the audio-frequency transformer module, the AUX signal circuits,
The bluetooth module, electronic sound volume control chip and the digital audio-power amplifier chip are coupled with the controller, institute
Electronic sound volume control chip is stated to couple with the digital audio-power amplifier chip.
2. three road according to claim 1 audio power amplifier, which is characterized in that the AUX signal circuits include：First electricity
Resistance, slide resistor and second resistance, one end of the first resistor are electrically connected with the controller, the first resistor it is another
One end is connect with one end of the slide resistor, and the other end of the slide resistor is connect with the second resistance.
3. three road according to claim 2 audio power amplifier, which is characterized in that further include the first capacitance and the second capacitance,
One end of first capacitance is connect with the connects end altogether of the slide resistor and the second resistance, first capacitance it is another
One end is grounded, and one end of second capacitance is connect with the second resistance, the other end ground connection of second capacitance.
4. three road according to claim 1 audio power amplifier, which is characterized in that further include communication module, the communication mould
Block is coupled with the controller.
5. three road according to claim 1 audio power amplifier, which is characterized in that further include loudspeaker, the loudspeaker with it is described
Digital audio-power amplifier chip couples.
6. three road according to claim 1 audio power amplifier, which is characterized in that further include fire-fighting module, the fire-fighting mould
Block is coupled with the controller.
7. three road according to claim 1 audio power amplifier, which is characterized in that further include power module, the power supply mould
Block is coupled with the controller.
8. three road according to claim 1 audio power amplifier, which is characterized in that the model of the electronic sound volume control chip
For M2429.
9. three road according to claim 1 audio power amplifier, which is characterized in that the model of the digital audio-power amplifier chip
For YDA138-E.
10. a kind of broadcast system, which is characterized in that including three road as described in any one of claims 1-9 audio frequency power amplifier
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721811076.8U CN207677971U (en) | 2017-12-20 | 2017-12-20 | Three road audio power amplifiers of one kind and broadcast system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721811076.8U CN207677971U (en) | 2017-12-20 | 2017-12-20 | Three road audio power amplifiers of one kind and broadcast system |
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| Publication Number | Publication Date |
|---|---|
| CN207677971U true CN207677971U (en) | 2018-07-31 |
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ID=62970566
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| CN201721811076.8U Active CN207677971U (en) | 2017-12-20 | 2017-12-20 | Three road audio power amplifiers of one kind and broadcast system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048792A (en) * | 2019-05-27 | 2019-07-23 | 哈尔滨奥特科技有限公司 | Background music and fire broadcast shared system |
| CN111092685A (en) * | 2018-10-23 | 2020-05-01 | 成都共同进步信息技术有限公司 | Broadcasting system with Bluetooth data transmission function and Bluetooth audio transmission function |
-
2017
- 2017-12-20 CN CN201721811076.8U patent/CN207677971U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111092685A (en) * | 2018-10-23 | 2020-05-01 | 成都共同进步信息技术有限公司 | Broadcasting system with Bluetooth data transmission function and Bluetooth audio transmission function |
| CN110048792A (en) * | 2019-05-27 | 2019-07-23 | 哈尔滨奥特科技有限公司 | Background music and fire broadcast shared system |
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