CN106101930A - There is network savvy and the multi-functional audio circuit of external source of sound broadcasting can be carried out - Google Patents
There is network savvy and the multi-functional audio circuit of external source of sound broadcasting can be carried out Download PDFInfo
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- CN106101930A CN106101930A CN201610522207.4A CN201610522207A CN106101930A CN 106101930 A CN106101930 A CN 106101930A CN 201610522207 A CN201610522207 A CN 201610522207A CN 106101930 A CN106101930 A CN 106101930A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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Abstract
The invention discloses and there is network savvy and the multi-functional audio circuit of external source of sound broadcasting can be carried out, it is equipped with control circuit system, audio frequency processing circuit, radio transmitter, sound system and power circuit, power circuit is connected with control circuit system and audio frequency processing circuit respectively, control circuit system connects audio frequency processing circuit, audio frequency processing circuit connects radio transmitter, and audio frequency processing circuit is all connected with sound system with radio transmitter;Inductance L1, electric capacity C1, electric capacity C2, diode D1, three terminal regulator U1, electric capacity C3, electric capacity C4, three terminal regulator U2, electric capacity C6, electric capacity C7, electric capacity C8, three terminal regulator U3, electric capacity C9, electric capacity C10, electric capacity C11 it is provided with in described power circuit, 3.3v regulated power supply and 5v regulated power supply respectively control circuit system and audio frequency processing circuit can be utilized to be powered, and the conversion using three terminal regulator to carry out between voltage is arranged.
Description
Technical field
The present invention relates to Audiotechnica field, specifically, to there is network savvy and external source of sound broadcasting can be carried out
Multi-functional audio circuit.
Background technology
Sound equipment refer to the language except people, music in addition to other sounds, including the sound, the sound of animal of natural environment
The various sound etc. that sound, the sound equipment of machine tools, the action of people send.Sound equipment probably includes that power amplifier, peripheral equipment (include pressure limit
Device, effect device, equalizer, VCD, DVD etc.), speaker (audio amplifier, loudspeaker) sound console, mike, display device etc. add up
A set of.Wherein, audio amplifier is exactly audio output device, loudspeaker, subwoofer etc..Include in one audio amplifier high and low, in three kinds raise one's voice
Device, three kinds but not necessarily with regard to three.
Technology developing history can be divided into electron tube, transistor, integrated circuit, field effect transistor four-stage.
Commonly (loudspeaker) sound principle, dielectric resonance mixing sound equipment, principle of sound, use vibrator vibration and send out
Sound+papery tympanum sound horn, we both know about through the people of Sound Effect, and common sound equipment is except Specialty Hi-Fi, and general is common
Sound equipment supper bass is all inadequate, and the better general volume of bass is the least, and this is mainly due to the sound equipment using sound horn
Affected by phonation unit body size very big, so a lot of multi-media sound system directly uses subwoofer, external speaker, fully expanded
Its phonation unit body volume range, but so profile for sound equipment sound equipment just has the biggest limiting, here it is why I
The sound equipment seen in market be typically all the reasons just having edges and corners in four directions four, and bass effect is not fine.
Summary of the invention
It is an object of the invention to provide and there is network savvy and the multi-functional audio circuit of external source of sound broadcasting can be carried out,
Design based on Radio Transmission Technology, it is possible to use the mode being wirelessly transferred to carry out the drive of sound system, thus avoid too much
The mode using line to connect carry out the connection between sound system and sound system and the VC situation that causes;And can
Utilize 3.3v regulated power supply and 5v regulated power supply respectively control circuit system and audio frequency processing circuit to be powered, use simultaneously
Three terminal regulator carries out the conversion between voltage and arranges, it is possible to effectively avoid affecting whole sound equipment due to the reason of voltage instability
The work of circuit, it is simple that whole circuit has design, the features such as acoustical quality is good.
The present invention is achieved through the following technical solutions: has network savvy and can carry out the multi-functional sound of external source of sound broadcasting
Ring circuit, be provided with control circuit system, audio frequency processing circuit, radio transmitter, sound system and power circuit, described electricity
Source circuit is connected with control circuit system and audio frequency processing circuit respectively, and described control circuit system connects Audio Processing electricity
Road, described audio frequency processing circuit connect radio transmitter, audio frequency processing circuit and radio transmitter all with sound system phase
Connect;Inductance L1, electric capacity C1, electric capacity C2, diode D1, three terminal regulator U1, electric capacity C3, electricity it is provided with in described power circuit
Hold C4, three terminal regulator U2, electric capacity C6, electric capacity C7, electric capacity C8, three terminal regulator U3, electric capacity C9, electric capacity C10, electric capacity C11, electricity
Sense L1 is connected by the input of diode D1 with three terminal regulator U1, and second end of inductance L1 passes through electric capacity C1 ground connection, electricity
The first end holding C2 is connected with the positive terminal of diode D1 and second end of inductance L1 respectively, the second end ground connection of electric capacity C2;Three
The input of end manostat U1 by electric capacity C3 ground connection and is connected with the earth terminal of three terminal regulator, and three terminal regulator U1's is defeated
Go out end to be connected with the IN end of three terminal regulator U2 and the IN end of three-terminal voltage-stabilizing U3 respectively, and the outfan of three terminal regulator U1 leads to
Cross electric capacity C4 ground connection;Electric capacity C6 is connected between the IN end of three terminal regulator U2 and GND end, and the GND end of three terminal regulator U2
Ground connection, electric capacity C7, electric capacity C8 are in parallel and are connected between the OUT terminal of three terminal regulator U2 and GND end, three terminal regulator U2's
OUT terminal output+5V regulated power supply;Electric capacity C9 is connected between the IN end of three terminal regulator U3 and GND end, and three terminal regulator U3
GND end ground connection, electric capacity C10 and electric capacity C11 are in parallel and are connected between the OUT terminal of three terminal regulator U3 and GND end, and three ends are steady
OUT terminal output+3.3V the regulated power supply of depressor U3.
Further for the present invention is better achieved, use the following structure that arranges especially: be additionally provided with in power circuit
Indicator light circuit, is provided with resistance R1 and LED in indicator light circuit, the positive pole of diode D1 by resistance R1 and
LED ground connection, and the minus earth of LED;The second end and the positive pole of diode D1 at inductance L1
Switch SK it is additionally provided with between end.
Further for the present invention is better achieved, use the following structure that arranges especially: described electric capacity C2 uses electrolysis electricity
Hold, and the positive pole of electric capacity C2 connects the positive pole of diode D1;Described electric capacity C3 uses electrochemical capacitor, and the positive pole of electric capacity C3 connects three ends
The input of manostat U1;Described electric capacity C6 and electric capacity C7 all uses electrochemical capacitor, and the positive terminal of electric capacity C6 and three-terminal voltage-stabilizing
The IN end of device U2 is connected, and the positive pole of electric capacity C7 is connected with the OUT terminal of three terminal regulator U2;Electric capacity C9 and electric capacity C10 all adopts
With electrochemical capacitor, the positive pole of electric capacity C9 is connected with the IN end of three terminal regulator U3, the positive pole of electric capacity C10 and three terminal regulator U3
OUT terminal be connected.
Further for the present invention is better achieved, use the following structure that arranges especially: set in described audio frequency processing circuit
Be equipped with audio frequency processing system, USB decoding circuit, SD card decoding circuit, wifi receives circuit and Bluetooth audio frequency receives circuit, described
The OUT terminal of three terminal regulator U2 connects audio frequency processing system, and audio frequency processing system decodes electricity with USB decoding circuit, SD card respectively
Road, wifi receive circuit, radio transmitter, Bluetooth audio frequency reception circuit and control circuit system and are connected.
Further for the present invention is better achieved, use the following structure that arranges especially: in described audio frequency processing circuit also
Be provided with RCA audio frequency to receive circuit and 3.5mm audio frequency and receive circuit, audio frequency processing system receive with RCA audio frequency respectively circuit and
3.5mm audio frequency receives circuit and is connected.
Further for the present invention is better achieved, use the following structure that arranges especially: be provided with in described sound system
One-level sound system, two grades of sound systems, three grades of sound systems, level Four sound system and Pyatyi sound system, described wireless
Radio road by wireless signal respectively with two grades of sound systems, three grades of sound systems, level Four sound system and Pyatyi sound system
Being connected, described one-level sound system is connected on audio frequency processing system.
Further for the present invention is better achieved, use the following structure that arranges especially: set in described control circuit system
It is equipped with control circuit, infrared receiving circuit, touch induction circuit, storage circuit and functional indicator light system, described control circuit
It is connected with functional indicator light system, storage circuit, touch induction circuit infrared receiving circuit and audio frequency processing circuit respectively, institute
The OUT terminal stating three terminal regulator U3 connects control circuit.
Further for the present invention is better achieved, use the following structure that arranges especially: at radio transmitter and audio frequency
Decoding circuit it is additionally provided with between processing system.
Further for the present invention is better achieved, use the following structure that arranges especially: described three terminal regulator U1 uses
LM7812 three terminal regulator, described three terminal regulator U2 uses LM2576-5V three terminal regulator, and described three terminal regulator U3 uses
LM2674-3.3V three terminal regulator.
The present invention compared with prior art, has the following advantages and beneficial effect:
The present invention designs based on Radio Transmission Technology, it is possible to use the mode being wirelessly transferred to carry out the band of sound system
Dynamic, thus the vision avoided the too much mode using line to connect to carry out the connection between sound system and sound system and cause
Mess;And 3.3v regulated power supply and 5v regulated power supply respectively control circuit system and audio frequency processing circuit can be utilized to enter
Row power supply, uses three terminal regulator to carry out conversion between voltage simultaneously and arranges, it is possible to that effectively avoids due to voltage instability is former
Thus affecting the work of whole acoustics circuit, it is simple that whole circuit has design, the features such as acoustical quality is good.
The present invention can utilize wifi, being introduced by the source of sound on smart machine or computer of blue-tooth intelligence to broadcast in real time
Put, such that it is able to play the purpose not using tone frequency channel wire can carry out audio frequency broadcasting so that in using region, seem salubriouser
Pleasant.
The present invention can carry out the broadcasting of external source of sound so that whole multi-functional audio circuit can multiple sound resource carry out sound
Frequency is play, thus promotes the Experience Degree of user.
The present invention uses the input LC filter circuit that inductance and electric capacity are constituted, it is possible to effectively just like that external electricity
Ripple in source filters, and is minimized so that the power supply in power circuit affects by external power supply so that the present invention
Will not be unstable because of electric current when carrying out source of sound and playing, or ripple disturbs and affects broadcasting tonequality, uses inductance to replace simultaneously
The design of transformator, also reduces use cost while playing required effect.
What the present invention used 5 grades of sound systems arranges pattern, it is possible to builds perfect surround sound field, plays back
Sound source can allow audience have the sensation being personally on the scene, and reaches perfectly to reduce the purpose of primary sound.
Accompanying drawing explanation
Fig. 1 is fundamental diagram of the present invention.
Fig. 2 is power circuit diagram of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1:
There is network savvy and the multi-functional audio circuit of external source of sound broadcasting can be carried out, setting based on Radio Transmission Technology
Meter, it is possible to use the mode being wirelessly transferred to carry out the drive of sound system, thus avoid the too much mode using line to connect to enter
Connection between row sound system and sound system and the VC situation that causes;And 3.3v regulated power supply and 5v can be utilized
Regulated power supply respectively control circuit system and audio frequency processing circuit are powered, and use three terminal regulator to carry out between voltage simultaneously
Conversion arrange, it is possible to effectively avoid affecting the work of whole acoustics circuit, whole circuit due to the reason of voltage instability
There is design simple, the features such as acoustical quality is good, as shown in Figure 1 and Figure 2, it is specifically arranged to following structure: be provided with control circuit
System, audio frequency processing circuit, radio transmitter, sound system and power circuit, described power circuit respectively with control circuit
System is connected with audio frequency processing circuit, and described control circuit system connects audio frequency processing circuit, and described audio frequency processing circuit is even
Connecing radio transmitter, audio frequency processing circuit is all connected with sound system with radio transmitter;Set in described power circuit
It is equipped with inductance L1, electric capacity C1, electric capacity C2, diode D1, three terminal regulator U1, electric capacity C3, electric capacity C4, three terminal regulator U2, electricity
Holding C6, electric capacity C7, electric capacity C8, three terminal regulator U3, electric capacity C9, electric capacity C10, electric capacity C11, inductance L1 passes through diode D1 and three
The input of end manostat U1 is connected, and second end of inductance L1 passes through electric capacity C1 ground connection, and first end of electric capacity C2 is respectively with two
The positive terminal of pole pipe D1 and second end of inductance L1 connect, the second end ground connection of electric capacity C2;The input of three terminal regulator U1 leads to
Cross electric capacity C3 ground connection and be connected with the earth terminal of three terminal regulator, the outfan of three terminal regulator U1 respectively with three terminal regulator
The IN end of U2 is connected with the IN end of three-terminal voltage-stabilizing U3, and the outfan of three terminal regulator U1 is by electric capacity C4 ground connection;Electric capacity C6
It is connected between the IN end of three terminal regulator U2 and GND end, and the GND end ground connection of three terminal regulator U2, electric capacity C7, electric capacity C8 are also
Join and be connected between the OUT terminal of three terminal regulator U2 and GND end, the OUT terminal output+5V regulated power supply of three terminal regulator U2;
Electric capacity C9 is connected between the IN end of three terminal regulator U3 and GND end, and the GND end ground connection of three terminal regulator U3, electric capacity C10 and
Electric capacity C11 is in parallel and is connected between the OUT terminal of three terminal regulator U3 and GND end, and the OUT terminal output of three terminal regulator U3+
3.3V regulated power supply.
When design uses, inductance L1 and electric capacity C1 forms LC filter circuit, and external power supply is after LC filter circuit filters
By being input to the input (IN) of three terminal regulator U1 after electric capacity C2 filtering by diode D1, and utilize three-terminal voltage-stabilizing
Device U1 carries out voltage stabilizing output 12V regulated power supply, and wherein, electric capacity C3 constitutes 12V input filter circuit, and electric capacity C4 constitutes 12V output
Filter circuit;Three terminal regulator U2, electric capacity C6, electric capacity C7, electric capacity C8 constitute 5V voltage-stabilized power supply circuit, wherein, electric capacity C6, electric capacity
C7, electric capacity C8 are filter capacitor;Three terminal regulator U3, electric capacity C9, electric capacity C10, electric capacity C11 constitute 3.3V voltage-stabilized power supply circuit,
Wherein, electric capacity C9, electric capacity C10, electric capacity C11 are filter capacitor.
Embodiment 2:
The present embodiment is to optimize further on the basis of above-described embodiment, further for the present invention is better achieved,
Can show that the input of the 12V change-over circuit of power circuit the most normally works in real time, as shown in Figure 1 and Figure 2, use especially
The following structure that arranges: be additionally provided with indicator light circuit in power circuit, is provided with resistance R1 and luminous two in indicator light circuit
Pole pipe LED, the positive pole of diode D1 passes through resistance R1 and LED ground connection, and the negative pole of LED connects
Ground;Switch SK it is additionally provided with between second end and the positive terminal of diode D1 of inductance L1.
Embodiment 3:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, further for this is better achieved
Bright, it is possible to preferably to play the purpose of filtering, and need to be configured according to difference, as shown in Figure 1 and Figure 2, use following especially
Structure is set: described electric capacity C2 uses electrochemical capacitor, and the positive pole of electric capacity C2 connects the positive pole of diode D1;Described electric capacity C3 uses
Electrochemical capacitor, and the positive pole of electric capacity C3 connects the input of three terminal regulator U1;Described electric capacity C6 and electric capacity C7 all uses electrolysis electricity
Hold, and the positive terminal of electric capacity C6 is connected with the IN end of three terminal regulator U2, the positive pole of electric capacity C7 and the OUT of three terminal regulator U2
End is connected;Electric capacity C9 and electric capacity C10 all uses electrochemical capacitor, the positive pole of electric capacity C9 to be connected with the IN end of three terminal regulator U3
Connecing, the positive pole of electric capacity C10 is connected with the OUT terminal of three terminal regulator U3.
Embodiment 4:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, further for this is better achieved
Bright, it is possible to external for USB device source of sound, the external source of sound of SD card are carried out in the present invention audio frequency broadcasting, can utilize simultaneously wifi,
Being introduced by the source of sound on smart machine or computer of blue-tooth intelligence carries out real-time play, does not uses tone frequency channel wire such that it is able to play
The purpose of audio frequency broadcasting can be carried out so that seem the most pleasant in using region, as shown in Figure 1 and Figure 2, use especially
The following structure that arranges: be provided with in described audio frequency processing circuit audio frequency processing system, USB decoding circuit, SD card decoding circuit,
Wifi receives circuit and Bluetooth audio frequency receives circuit, and the OUT terminal of described three terminal regulator U2 connects audio frequency processing system, at audio frequency
Reason system receives circuit, radio transmitter, Bluetooth audio frequency reception electricity respectively with USB decoding circuit, SD card decoding circuit, wifi
Road and control circuit system are connected;The broadcasting of external source of sound can be carried out so that whole multi-functional audio circuit can multitone
Source carry out audio frequency broadcasting, thus promote the Experience Degree of user.
Embodiment 5:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, further for this is better achieved
Bright, it is possible to utilize RCA tone frequency channel wire to play out in the voice data on computer or other audio frequency apparatus is linked into the present invention, with
Time 3.5mm tone frequency channel wire can be utilized to carry out the access of voice data, as shown in Figure 1 and Figure 2, use especially and following structure be set: institute
Be additionally provided with RCA audio frequency in stating audio frequency processing circuit to receive circuit and 3.5mm audio frequency and receive circuit, audio frequency processing system respectively with
RCA audio frequency receives circuit and 3.5mm audio frequency receives circuit and is connected.
Embodiment 6:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, further for this is better achieved
Bright, it is possible to makeup ring is around audio, stereo audio, as shown in Figure 1 and Figure 2, the following structure that arranges of employing especially: described sound equipment system
One-level sound system, two grades of sound systems, three grades of sound systems, level Four sound system and Pyatyi sound system it is provided with in system,
Described radio transmitter by wireless signal respectively with two grades of sound systems, three grades of sound systems, level Four sound systems and five
Level sound system is connected, and described one-level sound system is connected on audio frequency processing system, one-level sound system, two grades of sound equipment systems
System, three grades of sound systems, level Four sound system and Pyatyi sound system collectively form 5 sound channel surround sound audio fields, wherein,
One-level sound system is the sound equipment with supper bass effect.
Embodiment 7:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, further for this is better achieved
It is bright, it is possible to utilize control circuit to be managed audio frequency processing system controlling so that the work that whole acoustics circuit can be good,
Reach stereo surrounding effect, and effectively promote the service behaviour of control circuit system, as shown in Figure 1 and Figure 2, use especially
The following structure that arranges: be provided with control circuit, infrared receiving circuit, touch induction circuit, storage in described control circuit system
Circuit and functional indicator light system, described control circuit is red with functional indicator light system, storage circuit, touch induction circuit respectively
Outer reception circuit and audio frequency processing circuit are connected, and the OUT terminal of described three terminal regulator U3 connects control circuit, functional indicator light
System is for carrying out the instruction of whole circuit working state.
Embodiment 8:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, further for this is better achieved
Bright, it is possible to after being decoded the voice data after audio frequency processing system processes processing, to utilize radio transmitter to pass respectively
It is passed in two grades of sound systems, three grades of sound systems, level Four sound system and Pyatyi sound system, as shown in Figure 1 and Figure 2, especially
Use the following structure that arranges: between radio transmitter and audio frequency processing system, be additionally provided with decoding circuit.
Embodiment 9:
The present embodiment is to optimize further on the basis of any of the above-described embodiment, further for this is better achieved
Bright, use the following structure that arranges especially: described three terminal regulator U1 uses LM7812 three terminal regulator, described three terminal regulator U2
Using LM2576-5V three terminal regulator, described three terminal regulator U3 uses LM2674-3.3V three terminal regulator.
The above, be only presently preferred embodiments of the present invention, and the present invention not does any pro forma restriction, every depends on
Any simple modification of being made above example according to the technical spirit of the present invention, equivalent variations, each fall within the protection of the present invention
Within the scope of.
Claims (9)
1. there is network savvy and the multi-functional audio circuit of external source of sound broadcasting can be carried out, it is characterised in that: it is provided with control
Circuits System, audio frequency processing circuit, radio transmitter, sound system and power circuit, described power circuit respectively with control
Circuits System is connected with audio frequency processing circuit, and described control circuit system connects audio frequency processing circuit, described Audio Processing electricity
Road connects radio transmitter, and audio frequency processing circuit is all connected with sound system with radio transmitter;Described power circuit
Inside it is provided with inductance L1, electric capacity C1, electric capacity C2, diode D1, three terminal regulator U1, electric capacity C3, electric capacity C4, three terminal regulator
U2, electric capacity C6, electric capacity C7, electric capacity C8, three terminal regulator U3, electric capacity C9, electric capacity C10, electric capacity C11, inductance L1 passes through diode
D1 is connected with the input of three terminal regulator U1, and second end of inductance L1 passes through electric capacity C1 ground connection, and first end of electric capacity C2 divides
It is not connected with the positive terminal of diode D1 and second end of inductance L1, the second end ground connection of electric capacity C2;Three terminal regulator U1's is defeated
Enter end by electric capacity C3 ground connection and be connected with the earth terminal of three terminal regulator, the outfan of three terminal regulator U1 respectively with three ends
The IN end of manostat U2 is connected with the IN end of three-terminal voltage-stabilizing U3, and the outfan of three terminal regulator U1 is by electric capacity C4 ground connection;
Electric capacity C6 is connected between the IN end of three terminal regulator U2 and GND end, and the GND end ground connection of three terminal regulator U2, electric capacity C7, electricity
Hold C8 parallel connection and be connected between the OUT terminal of three terminal regulator U2 and GND end, the OUT terminal output+5V voltage stabilizing of three terminal regulator U2
Power supply;Electric capacity C9 is connected between the IN end of three terminal regulator U3 and GND end, and the GND end ground connection of three terminal regulator U3, electric capacity
C10 and electric capacity C11 is in parallel and is connected between the OUT terminal of three terminal regulator U3 and GND end, and the OUT terminal of three terminal regulator U3 is defeated
Go out+3.3V regulated power supply.
The multi-functional audio circuit that there is network savvy and external source of sound broadcasting can be carried out the most according to claim 1, its
It is characterised by: in power circuit, be additionally provided with indicator light circuit, in indicator light circuit, is provided with resistance R1 and light emitting diode
LED, the positive pole of diode D1 passes through resistance R1 and LED ground connection, and the minus earth of LED;?
Switch SK it is additionally provided with between second end and the positive terminal of diode D1 of inductance L1.
The multi-functional audio circuit that there is network savvy and external source of sound broadcasting can be carried out the most according to claim 1 and 2,
It is characterized in that: described electric capacity C2 uses electrochemical capacitor, and the positive pole of electric capacity C2 connects the positive pole of diode D1;Described electric capacity C3 adopts
With electrochemical capacitor, and the positive pole of electric capacity C3 connects the input of three terminal regulator U1;Described electric capacity C6 and electric capacity C7 all uses electrolysis
Electric capacity, and the positive terminal of electric capacity C6 is connected with the IN end of three terminal regulator U2, the positive pole of electric capacity C7 is with three terminal regulator U2's
OUT terminal is connected;Electric capacity C9 and electric capacity C10 all uses electrochemical capacitor, the IN end phase of the positive pole of electric capacity C9 and three terminal regulator U3
Connecting, the positive pole of electric capacity C10 is connected with the OUT terminal of three terminal regulator U3.
The multi-functional audio circuit that there is network savvy and external source of sound broadcasting can be carried out the most according to claim 1 and 2,
It is characterized in that: in described audio frequency processing circuit, be provided with audio frequency processing system, USB decoding circuit, SD card decoding circuit, wifi
Receiving circuit and Bluetooth audio frequency receives circuit, the OUT terminal of described three terminal regulator U2 connects audio frequency processing system, Audio Processing system
System respectively with USB decoding circuit, SD card decoding circuit, wifi receive circuit, radio transmitter, Bluetooth audio frequency receive circuit and
Control circuit system is connected.
The multi-functional audio circuit that there is network savvy and external source of sound broadcasting can be carried out the most according to claim 4, its
It is characterised by: be additionally provided with RCA audio frequency in described audio frequency processing circuit and receive circuit and 3.5mm audio frequency reception circuit, at audio frequency
Reason system receives circuit respectively with RCA audio frequency and 3.5mm audio frequency receives circuit and is connected.
The multi-functional audio circuit that there is network savvy and external source of sound broadcasting can be carried out the most according to claim 4, its
It is characterised by: in described sound system, be provided with one-level sound system, two grades of sound systems, three grades of sound systems, level Four sound equipments
System and Pyatyi sound system, described radio transmitter by wireless signal respectively with two grades of sound systems, three grades of sound equipment systems
System, level Four sound system are connected with Pyatyi sound system, and described one-level sound system is connected on audio frequency processing system.
7. according to there is network savvy and the multi-functional sound of external source of sound broadcasting can be carried out described in claim 1 or 2 or 5 or 6
Ring circuit, it is characterised in that: be provided with in described control circuit system control circuit, infrared receiving circuit, touch induction circuit,
Storage circuit and functional indicator light system, described control circuit respectively with functional indicator light system, storage circuit, touch sensible electricity
Road infrared receiving circuit and audio frequency processing circuit are connected, and the OUT terminal of described three terminal regulator U3 connects control circuit.
8. according to there is network savvy and the multi-functional audio of external source of sound broadcasting can be carried out described in any one of claim 4-6
Circuit, it is characterised in that: between radio transmitter and audio frequency processing system, it is additionally provided with decoding circuit.
9. according to claim 1-2, there is network savvy and the multi-functional of external source of sound broadcasting can be carried out described in any one of 5-6
Acoustics circuit, it is characterised in that: described three terminal regulator U1 uses LM7812 three terminal regulator, and described three terminal regulator U2 uses
LM2576-5V three terminal regulator, described three terminal regulator U3 uses LM2674-3.3V three terminal regulator.
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CN102497609A (en) * | 2011-11-29 | 2012-06-13 | 宁波东源音响器材有限公司 | Wireless network sound system |
CN102522893A (en) * | 2011-12-15 | 2012-06-27 | 杨长存 | Novel power supply circuit |
CN204014033U (en) * | 2014-08-12 | 2014-12-10 | 李凌 | A kind of computer wireless microphone circuit |
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