CN204069234U - A kind of tuning device - Google Patents
A kind of tuning device Download PDFInfo
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- CN204069234U CN204069234U CN201420205871.2U CN201420205871U CN204069234U CN 204069234 U CN204069234 U CN 204069234U CN 201420205871 U CN201420205871 U CN 201420205871U CN 204069234 U CN204069234 U CN 204069234U
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Abstract
The utility model relates to technology for loudspeaker box field, specifically, relates to a kind of tuning device.It comprises the input module of electrical connection, output module, decoder module, amplification module, tuning module, power amplifier module, power module, temperature sensor and radiator fan.Of the present utility model the multiple audio signal processing unit circuit and audio-frequency power amplifier element circuit with " sound console " function to be combined into one, circuit structure is very succinct, " modularization " function is strong, and with low cost, technique is simply convenient to produce, quality is light, compatible by force, reliability is high, easy to operate and audio mixing is effective.
Description
Technical field
The utility model relates to technology for loudspeaker box field, specifically, relates to a kind of tuning device.
Background technology
Audio amplifier is the terminal of whole sound system, and its effect is that audio frequency electric energy is converted to corresponding acoustic energy, and it is radiated space.It is the extremely important part of sound system, the signal of telecommunication is transformed into acoustical signal directly listens to so mission critical because which is responsible for the ear of people, it is wanted directly and the sense of hearing of people is come into contacts with, and the sense of hearing of people is very sensitive, and to the tone color of complex sound, there is very strong resolving ability.Because people's ear to evaluate the most important standard of a sound system tonequality quality just to the subjective feeling of sound, therefore the performance height of audio amplifier is play key effect to the playing quality of a sound system.Affect audio amplifier performance height and have many factors, the tuning device in such as audio amplifier, cabinet design of audio amplifier etc., for active audio amplifier, we also must consider the performance of built in sound box power supply.
Simple and fast, functional diversity, the trend that compatibility is strong, Cheap and practical is the epoch of audio amplifier design, the most of bulky function singleness of audio amplifier of the prior art, telecommunication cable is needed to be connected with source of sound, without disc-jockey functionality, its built-in power used also is fossil energy, fossil energy also can bring multiple environmental pollution, and the built-in power flying power used in prior art is poor, can not normally work when built-in power energy is used up.In addition, at today that information technology is extremely flourishing, a kind of audio amplifier that can have wireless connecting function of increasing user's request, and prior art can not meet these demands of user.
Summary of the invention
The purpose of this utility model is to provide a kind of tuning device, and it can overcome certain or some defect of prior art.According to a kind of tuning device of the present utility model, it comprise the input module that inputs initial sound source signal and export tuning after the output module of sound source signal, also comprise
Decoder module, receives the initial sound source signal that input module transmits, and sends to amplification module by after initial sound source signal decoding;
Amplification module, the signal that receipt decoding module transmits sends to tuning module;
Tuning module, receives and the sound source signal regulating amplification module to transmit;
Power amplifier module, receives the sound source signal after also power amplification tuning module tuning;
Power module, powers to tuning module and power amplifier module;
Temperature sensor, is converted to the signal of telecommunication by power amplifier module surface temperature and sends to radiator fan; And
Radiator fan, receives the signal of telecommunication that temperature sensor transmits.Radiator fan of the present utility model can accept the signal that temperature sensor transmits, and can only rotate heat radiation, avoids its inside and causes fault because of overheated.
Preferably, decoder module comprises MP3 digital tone source decoder module, can decode to the digitally coded audio signal of MP3 and control;
Preferably, amplification module comprises 84 operation amplifier chips.
Preferably, tuning module comprises high, medium and low sound tone network, Audio mixing unit, reverberation unit and seven sections of EQ Graphic equalizer unit.
Preferably, tuning module is connected with display module, for showing tuning state.
Preferably, power module comprises rectification circuit and short-circuit protection circuit.
Preferably, power amplifier module is the high efficiency class AB audio power amplifying circuit adopting discrete component.
A kind of tuning device of the present utility model comprises two pieces of pcb boards connected by 7 hole winding displacements, is respectively pre-amplification circuit plate and power amplification circuit board.Wherein, by the circuit unit that possesses sound console function as multichannel microphone/line amplifier, high, medium and low sound tone network, Audio mixing unit, reverberation unit, display module, the basic circuits such as seven sections of EQ Graphic equalizer unit and MP3 line amplifier are all combined in same PCB, constitute pre-amplification circuit plate.The design of power amplification circuit board is except basic circuit; further comprises overload temperature-control circuit; variable automatic wind speed regulating circuit, 7 groups of rectification power circuits required on short-circuit protection circuit and pre-amplification circuit plate, are only connected by one group of 7 hole winding displacement with pre-amplification circuit plate.Pre-amplification circuit plate and power amplification circuit board, by good isolation and ground connection, effectively shield electromagnetic interference.On the one hand, the highly versatile of power amplification circuit board, can adaptive various types of pre-amplification circuit plate, in certain voltage range, can need to increase and decrease power output arbitrarily according to market and design, improve the flexibility of design, reduce the technological requirement of production; On the other hand, amplification module employs 4 operation amplifier chips of 8 ST companies, and make circuit structure very succinct like this, " modularization " function is strong, multiplexer channel amplifying unit can be arbitrarily made with very easily, can realize any reduction design according to the market demand to partial circuit unit, reasonably wiring makes high-quality source of sound be guaranteed, components and parts highly versatile, buying is convenient, integrated level is high, and technique is simple, and production cost is very cheap.
The multiple audio signal processing unit circuit and audio-frequency power amplifier element circuit with " sound console " function are combined into one by a kind of tuning device of the present utility model, embody this series products and have multi-functional one side.With low cost, technique is simply convenient to produce, the professional power sound console circuit of the Novel belt MP3 player that quality is light, compatible by force, reliability is high, easy to operate, audio mixing is effective.
In order to overcome certain or some defect of prior art, the utility model additionally provides a kind of charging device, it comprises battery, commercial power interface unit, solar energy electroplax, wind wheel motor, charging circuit and output circuit, commercial power interface unit, solar energy electroplax and wind wheel motor are all charged to battery by charging circuit, and the electric energy saved in battery can be supplied to external equipment by output circuit.
A kind of charging device of the present utility model, its commercial power interface unit by charging circuit directly to storing electrical energy in battery, solar energy to be converted to after electric energy by charging circuit to storing electrical energy in battery by solar energy electroplax, and mechanical energy to be converted to after electric energy by charging circuit to storing electrical energy in battery by wind wheel motor.Such design makes battery to be charged in several ways, and Wind resource change can be electric energy by wind wheel motor, and when calm, it is motor charging that user manually can pull wind wheel.
Preferably, above-mentioned battery can also be connected with display unit, the electricity of display battery that can be real-time and running status.
Preferably, can also be provided with charge protection unit and pressure monitoring means in charging circuit, charge protection unit can also comprise over-current protecting unit and overload protection unit, and voltage detection unit can also comprise direct voltage detecting unit.
Preferably, the interface of output circuit can be USB interface.
Preferably, wind wheel motor comprises wind wheel, and wind wheel adopts turbine.Turbine can make full use of wind energy.
A kind of charging device of the present utility model, its assembly be small-sized, be convenient to movement, quality is light, cost is low, stable, easy to operate, and can give the external 4A of being less than digital product charging and public situation under acoustic product extra 4 ~ 6 hours normal operating power source are provided.The all circuit units of a kind of charging device of the present utility model are all integrated on a fast pcb board, and it can be contained in active audio amplifier, can complete outdoor small-sized performance when not having electric.And a kind of charging device of the present utility model can also charge to external digital equipment, to continue the service time of all kinds of digital product.Prior art only can be charged to the digital equipment of this 1.2A of being less than of mobile phone, cannot support for the high-power digital equipment such as Pad, panel computer.A kind of charging device of the present utility model, perfectly can solve the problem of the open air charging of outdoor small-sized performance and all kinds of high-power digital equipment.
In order to overcome certain or some defect of prior art, the utility model additionally provides a kind of multimedia loudspeaker box of photovoltaic switch technology, it comprises housing, enclosure interior is provided with power supply, tuning device, power amplifier unit and loud speaker, power supply comprises charging device and solar energy electroplax, housing upper surface is also provided with articulated stand, and solar energy electroplax is connected with shell hinge by articulated stand.By such design, solar energy electroplax can be rotated arbitrarily on housing, thus make the utilance of solar energy reach maximization.
Preferably, power supply also comprises wind wheel generator, and wind wheel generator comprises wind wheel, and wind wheel is positioned on the left of housing.
More preferably, wind wheel is turbine.
Preferably, solar energy electroplax adopts mono-crystalline silicon solar electroplax.
Preferably, housing adopts the density board of 12mm.
Preferably, surface of shell is provided with one deck imitation leather bag covering layer.
Housing adopts the density board of 12mm to make and surface of shell is provided with one deck imitation leather bag covering layer, such design makes the speaker in audio amplifier in a more airtight environment, the diffuse reflection that can reduce audio amplifier inside reduces standing wave, thus the tonequality of audio amplifier is greatly improved.
Preferably, housing outer surface edge is chamfering, and chamfer radius is 12.5cm.
Preferably, tuning device adopts above-mentioned a kind of tuning device.
In a preferred embodiment of the multimedia loudspeaker box of a kind of photovoltaic switch technology of the present utility model, described power supply comprises above-mentioned a kind of charging device.In another preferred embodiment of the multimedia loudspeaker box of a kind of photovoltaic switch technology of the present utility model, power unit comprises and controls two links to the absorption of solar energy and electric energy conversion, tuning cell mesh comprises the amplification of preposition microphone signal, preposition sound source signal amplifies, audio mixing three links, power amplifier unit part is the amplifying element of final power, its preposition microphone signal amplifying circuit adopts microminiature resistance and potentiometer, and its power amplifier unit part circuit adopts green, energy-conservation, efficient D class power amplifier.
The quality of the multimedia loudspeaker box of a kind of photovoltaic switch technology of the present utility model is light, cost is low, stable, easy to operate, audio mixing is effective.Because adopting photovoltaic switch technology, continuous power supply forever can be obtained like a cork; And D class power amplifier and tuning device are entirety to be seated in casing, by good isolation and ground connection, effective shield electromagnetic interference, can be good at amplifying in conjunction with enlarge leadingly and final power, makes the reduction degree of source of sound high.
In order to overcome certain or some defect of prior art, the utility model additionally provides a kind of NFC bluetooth and grabs active audio amplifier, it comprises cover plate, NFC grabs device and tuning device, and deck side edge is provided with cavity, and inside cover plate, direction is equipped with vibrationproof muscle in length and breadth; The tuning knob of tuning device is arranged on the side of cover plate, and NFC grabs the opposite side of astronomical cycle at cover plate of device.
A kind of NFC bluetooth of the present utility model is grabbed in a preferred embodiment of active audio amplifier, crisscross vibrationproof muscle is provided with inside it, be filled with acoustical cotton in the grid that vibrationproof muscle in direction is formed in length and breadth, can prevent audio amplifier from forming sound wave loop, make audio amplifier tonequality excellent.Its deck side edge is provided with cavity in addition, by good isolation, and effective shield electromagnetic interference and audio amplifier vibration.
Preferably, NFC is grabbed device and is comprised Bluetooth audio frequency decoder module, and Bluetooth audio frequency decoder module adopts CSR8811 chip.
Preferably, cover plate materials adopts the density board of 12mm.
Preferably, lid surface is provided with one deck imitation leather bag covering layer.
A kind of NFC bluetooth of the present utility model is grabbed in a preferred embodiment of active audio amplifier, and tuning device is above-mentioned a kind of tuning device.And comprise NFC and grab module, Bluetooth audio frequency decoder module, source of sound input module and power amplifier module.Wherein, NFC grabs module, Bluetooth audio frequency decoder module comprises NFC device identification, the compulsory withdrawal of current Bluetooth audio signal, NFC device bluetooth to be dynamically connected and music plays four processes automatically, source of sound input module comprises the amplification of preposition microphone signal, the amplification of preposition sound source signal, audio mixing and balanced four links, and power amplifier module mainly refers to the amplifying element of final power.Wherein, pre-line adopts microminiature resistance and potentiometer, and power amplification circuit adopts green, energy-conservation, efficient D class power amplifier.
A kind of NFC bluetooth of the present utility model grabs active audio amplifier to identify NFC Bluetooth signal and the assembly of Bluetooth signal automatic control process is contained in portable active audio amplifier, the harmless source of sound obtaining high-quality to be connected like a cork with portable intelligent device, eliminate special CD, DVD source of sound, thus use by the Internet acquisition source of sound program.And tuning device is entirety to be seated in casing, effectively to amplify in conjunction with enlarge leadingly and final power, and can movement be facilitated.
A kind of NFC bluetooth of the present utility model grabs active audio amplifier compact conformation, conveniently moving, and can be downloaded by smart machine and source of sound program needed for playing, and complete machine runs more stable, the reduction degree of source of sound is high.
In order to overcome certain or some defect of prior art, the utility model additionally provides a kind of radio multimedium audio amplifier of photovoltaic switch technology, and it comprises photovoltaic modular converter, wireless blue tooth module, tuning module and power amplifier module; Power to wireless blue tooth module, tuning module and power amplifier module after solar energy is converted to electric energy by photovoltaic modular converter; Wireless blue tooth module sends to tuning module by after the radio sound source signal decoding of reception; Power amplifier module is sent to after the signal tuning that tuning module reception wireless blue tooth module transmits; The signal power that power amplifier module reception wireless blue tooth module transmits sends to source of sound output equipment after amplifying.
Preferably, photovoltaic modular converter comprises solar energy electroplax, and solar energy electroplax adopts mono-crystalline silicon solar electroplax.
Preferably, power amplifier module comprises D class power amplifier.
Preferably, wireless blue tooth module comprises CSR8811 chip.
The utility model is contained in the assembly of Novel photovoltaic switch technology in multimedia loudspeaker box, can obtain continuous power supply forever like a cork.Wireless blue tooth module, tuning module and power amplifier module are all integrally provided in casing, and by good isolation and ground connection, effective shield electromagnetic interference, can amplify in conjunction with enlarge leadingly and final power, convenient mobile.Wireless blue tooth module comprises bluetooth digital audio and receives the decode assembly.Photovoltaic modular converter comprises and controls two links to the absorption of solar energy and electric energy conversion, and tuning module comprises that preposition microphone signal amplifies, preposition sound source signal amplifies and audio mixing three links, and power amplifier module comprises the amplifying element of final power.The housing of the radio multimedium audio amplifier of a kind of photovoltaic switch technology of the present utility model be small-sized, be convenient to movement, its pre-line adopts microminiature resistance and potentiometer, and the D class power amplifier of employing is green, energy-conservation, efficient.
The utility model utilizes novel photovoltaic switch technology, receive the decode technology in conjunction with ripe bluetooth digital audio, provide the radio multimedium audio amplifier of the Novel photovoltaic switch technology that a kind of quality is light, cost is low, stable, easy to operate, audio mixing is effective.Its compact conformation, conveniently moving, can use continuous green power supply forever, and complete machine is stable, the reduction degree of source of sound is high, can also be controlled by bluetooth remote.
In a preferred embodiment of the radio multimedium audio amplifier of a kind of photovoltaic switch technology of the present utility model, photovoltaic modular converter comprises above-mentioned a kind of charging device, and tuning module comprises above-mentioned a kind of tuning device.
Accompanying drawing explanation
Fig. 1 is the circuit structure block diagram of a kind of tuning device of the present utility model;
Fig. 2 is the circuit structure block diagram of a kind of charging device of the present utility model;
Fig. 3 is that the circuit of the multimedia loudspeaker box of a kind of photovoltaic switch technology of the present utility model connects block diagram;
Fig. 4 is the front view of the multimedia loudspeaker box of a kind of photovoltaic switch technology of the present utility model;
Fig. 5 is the vertical view of the multimedia loudspeaker box of a kind of photovoltaic switch technology of the present utility model;
Fig. 6 is the left view of the multimedia loudspeaker box of a kind of photovoltaic switch technology of the present utility model;
Fig. 7 is the cover plate inside structure schematic diagram that a kind of NFC bluetooth of the present utility model grabs active audio amplifier;
Fig. 8 is the cover plate outboard structure schematic diagram that a kind of NFC bluetooth of the present utility model grabs active audio amplifier;
The part circuit structure block diagram of the radio multimedium audio amplifier of Fig. 9 a kind of photovoltaic switch technology of the present utility model.
Embodiment
For understanding content of the present utility model further, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
Embodiment 1
As shown in Figure 1, for a kind of tuning device of the present embodiment, it comprise the input module that inputs initial sound source signal and export tuning after the output module of sound source signal, also comprise decoder module, amplification module, tuning module, power amplifier module, power module, temperature sensor and radiator fan.Decoder module receives the initial sound source signal that input module transmits, and sends to amplification module by after initial sound source signal decoding; The signal that amplification module receipt decoding module transmits sends to tuning module after amplifying; The signal that tuning module reception amplification module transmits also carries out tuning to it; Power amplifier module receives the signal after also power amplification tuning module tuning.Power module is that tuning module and power amplifier module are powered, and power amplifier module surface temperature is converted to the signal of telecommunication and sends to radiator fan, radiator fan by temperature sensor, receives the signal of telecommunication that temperature sensor transmits.Radiator fan of the present utility model can accept the signal that temperature sensor transmits, and can only rotate heat radiation, avoids its inside and causes fault because of overheated.
Wherein, decoder module comprises MP3 digital tone source decoder module, can decode to the digitally coded audio signal of MP3 and control.Amplification module comprises 84 operation amplifier chips; Tuning module comprises high, medium and low sound tone network, Audio mixing unit, reverberation unit and seven sections of EQ Graphic equalizer unit; Tuning module is connected with display module, for showing tuning state; Power module comprises rectification circuit and short-circuit protection circuit; Power amplifier module is the high efficiency class AB audio power amplifying circuit adopting discrete component.
A kind of tuning device of the present embodiment comprises two pieces of pcb boards connected by 7 hole winding displacements, is respectively pre-amplification circuit plate and power amplification circuit board.Wherein, by the circuit unit that possesses sound console function as multichannel microphone/line amplifier, high, medium and low sound tone network, Audio mixing unit, reverberation unit, display module, the basic circuits such as seven sections of EQ Graphic equalizer unit and MP3 line amplifier are all combined in same PCB, constitute pre-amplification circuit plate.The design of power amplification circuit board is except basic circuit; further comprises overload temperature-control circuit; variable automatic wind speed regulating circuit, 7 groups of rectification power circuits required on short-circuit protection circuit and pre-amplification circuit plate, are only connected by one group of 7 hole winding displacement with pre-amplification circuit plate.Pre-amplification circuit plate and power amplification circuit board, by good isolation and ground connection, effectively shield electromagnetic interference.On the one hand, the highly versatile of power amplification circuit board, can adaptive various types of pre-amplification circuit plate, in certain voltage range, can need to increase and decrease power output arbitrarily according to market and design, improve the flexibility of design, reduce the technological requirement of production; On the other hand, amplification module employs 4 operation amplifier chips of 8 ST companies, and make circuit structure very succinct like this, " modularization " function is strong, multiplexer channel amplifying unit can be arbitrarily made with very easily, can realize any reduction design according to the market demand to partial circuit unit, reasonably wiring makes high-quality source of sound be guaranteed, components and parts highly versatile, buying is convenient, integrated level is high, and technique is simple, and production cost is very cheap.
Embodiment 2
As shown in Figure 2, for a kind of charging device of the present embodiment, it comprises battery, commercial power interface unit, solar energy electroplax, wind wheel motor, charging circuit and output circuit, commercial power interface unit, solar energy electroplax and wind wheel motor are all charged to battery by charging circuit, and the electric energy saved in battery can be supplied to external equipment by output circuit.
Wherein, battery is also connected with display unit, the electricity of display battery that can be real-time and running status.Also be provided with charge protection unit and pressure monitoring means in charging circuit, charge protection unit also comprises over-current protecting unit and overload protection unit, and voltage detection unit also comprises direct voltage detecting unit, and the interface of output circuit can be USB interface.Wind wheel motor comprises wind wheel, and wind wheel adopts turbine, and turbine can make full use of wind energy.
A kind of charging device of the present embodiment, its commercial power interface unit by charging circuit directly to storing electrical energy in battery, solar energy to be converted to after electric energy by charging circuit to storing electrical energy in battery by solar energy electroplax, and mechanical energy to be converted to after electric energy by charging circuit to storing electrical energy in battery by wind wheel motor.Such design makes battery to be charged in several ways, and Wind resource change can be electric energy by wind wheel motor, and when calm, it is motor charging that user manually can pull wind wheel.
A kind of charging device of the present embodiment, its assembly be small-sized, be convenient to movement, quality is light, cost is low, stable, easy to operate, and can give the external 4A of being less than digital product charging and public situation under acoustic product extra 4 ~ 6 hours normal operating power source are provided.A kind of charging device of the present embodiment, its all circuit unit is all integrated on a fast pcb board, and it can be contained in active audio amplifier, can complete outdoor small-sized performance when not having electric.And a kind of charging device of the present embodiment can also charge to external digital equipment, to continue the service time of all kinds of digital product.Prior art only can be charged to the digital equipment of this 1.2A of being less than of mobile phone, cannot support for the high-power digital equipment such as Pad, panel computer.A kind of charging device of the present embodiment, perfectly can solve the problem of the open air charging of outdoor small-sized performance and all kinds of high-power digital equipment.
Embodiment 3
As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, for the multimedia loudspeaker box of a kind of photovoltaic switch technology of the present embodiment, it comprises housing 1, housing 1 inside is provided with power supply, tuning device, power amplifier unit and loud speaker, power supply comprises charging device and solar energy electroplax 3, housing 1 upper surface is also provided with articulated stand 31, and solar energy electroplax 3 is by articulated stand 31 and housing 1 chain connection.By such design, solar energy electroplax 3 can be rotated arbitrarily on housing 1, thus make the utilance of solar energy reach maximization.
Wherein, power supply also comprises wind wheel generator, and wind wheel generator comprises wind wheel 4, and wind wheel 4 is positioned on the left of housing, and wind wheel 4 is turbine.Solar energy electroplax 3 adopts mono-crystalline silicon solar electroplax, and housing 1 adopts the density board of 12mm, and housing 1 surface is provided with one deck imitation leather bag covering layer 2.Housing 1 outer surface edge is chamfering, and chamfer radius is 12.5cm, and tuning device adopts a kind of tuning device in embodiment 1.
Housing 1 adopts the density board of 12mm to make and housing 1 surface is provided with one deck imitation leather bag covering layer 2, such design makes the speaker in audio amplifier in a more airtight environment, the diffuse reflection that can reduce audio amplifier inside reduces standing wave, thus the tonequality of audio amplifier is greatly improved.The power supply of the multimedia loudspeaker box of a kind of photovoltaic switch technology of the present embodiment comprises a kind of charging device in embodiment 2.The multimedia loudspeaker box of a kind of photovoltaic switch technology of the present embodiment, power unit comprises and controls two links to the absorption of solar energy and electric energy conversion, tuning cell mesh comprises the amplification of preposition microphone signal, preposition sound source signal amplifies, audio mixing three links, power amplifier unit part is the amplifying element of final power, its preposition microphone signal amplifying circuit adopts microminiature resistance and potentiometer, and its power amplifier unit part circuit adopts green, energy-conservation, efficient D class power amplifier.
The quality of the multimedia loudspeaker box of a kind of photovoltaic switch technology of the present utility model is light, cost is low, stable, easy to operate, audio mixing is effective.Because adopting photovoltaic switch technology, continuous power supply forever can be obtained like a cork; And D class power amplifier and tuning device are entirety to be seated in casing, by good isolation and ground connection, effective shield electromagnetic interference, can be good at amplifying in conjunction with enlarge leadingly and final power, makes the reduction degree of source of sound high.
Embodiment 4
As shown in Figure 7, Figure 8, for a kind of NFC bluetooth of the present embodiment grabs active audio amplifier, it comprises cover plate 5, NFC grabs device and tuning device, and deck side edge is provided with cavity 54, and inside cover plate, direction is equipped with vibrationproof muscle 53 in length and breadth; The tuning knob of tuning device is arranged on the side of cover plate, 51 places namely in Figure 10, and NFC grabs the opposite side of astronomical cycle at cover plate 5 of device, 55 places namely in Figure 10.
A kind of NFC bluetooth of the present embodiment grabs active audio amplifier, is provided with crisscross vibrationproof muscle 53 inside it, is filled with acoustical cotton in the grid 52 that vibrationproof muscle in direction is formed in length and breadth, can prevent audio amplifier from forming sound wave loop, make audio amplifier tonequality excellent.Its deck side edge is provided with cavity in addition, by good isolation, and effective shield electromagnetic interference and audio amplifier vibration.
Wherein, NFC is grabbed device and is comprised Bluetooth audio frequency decoder module, and Bluetooth audio frequency decoder module adopts CSR8811 chip.The material of cover plate 5 adopts the density board of 12mm, and cover plate 5 surface is provided with one deck imitation leather bag covering layer.
A kind of NFC bluetooth of the present embodiment grabs active audio amplifier, and tuning device is a kind of tuning device in embodiment 1, and comprises NFC and grab module, Bluetooth audio frequency decoder module, source of sound input module and power amplifier module.Wherein, NFC grabs module, Bluetooth audio frequency decoder module comprises NFC device identification, the compulsory withdrawal of current Bluetooth audio signal, NFC device bluetooth to be dynamically connected and music plays four processes automatically, source of sound input module comprises the amplification of preposition microphone signal, the amplification of preposition sound source signal, audio mixing and balanced four links, and power amplifier module mainly refers to the amplifying element of final power.Wherein, pre-line adopts microminiature resistance and potentiometer, and power amplification circuit adopts green, energy-conservation, efficient D class power amplifier.
A kind of NFC bluetooth of the present embodiment grabs active audio amplifier, to identify NFC Bluetooth signal and the assembly of Bluetooth signal automatic control process is contained in portable active audio amplifier, the harmless source of sound obtaining high-quality to be connected like a cork with portable intelligent device, eliminate special CD, DVD source of sound, thus use by the Internet acquisition source of sound program.And tuning device is entirety to be seated in casing, effectively to amplify in conjunction with enlarge leadingly and final power, and can movement be facilitated.
Embodiment 5
As shown in Figure 9, be the radio multimedium audio amplifier of a kind of photovoltaic switch technology of the present embodiment, it comprises photovoltaic modular converter, wireless blue tooth module, tuning module and power amplifier module; Power to wireless blue tooth module, tuning module and power amplifier module after solar energy is converted to electric energy by photovoltaic modular converter; Wireless blue tooth module sends to tuning module by after the radio sound source signal decoding of reception; Power amplifier module is sent to after the signal tuning that tuning module reception wireless blue tooth module transmits; The signal power that power amplifier module reception wireless blue tooth module transmits sends to source of sound output equipment after amplifying.
Wherein, photovoltaic modular converter comprises solar energy electroplax, and solar energy electroplax adopts mono-crystalline silicon solar electroplax.Power amplifier module comprises D class power amplifier, and wireless blue tooth module comprises CSR8811 chip.
The radio multimedium audio amplifier of a kind of photovoltaic switch technology of the present embodiment is contained in the assembly of Novel photovoltaic switch technology in multimedia loudspeaker box, can obtain continuous power supply forever like a cork.Wireless blue tooth module, tuning module and power amplifier module are all integrally provided in casing, and by good isolation and ground connection, effective shield electromagnetic interference, can amplify in conjunction with enlarge leadingly and final power, convenient mobile.Wireless blue tooth module comprises bluetooth digital audio and receives the decode assembly.Photovoltaic modular converter comprises and controls two links to the absorption of solar energy and electric energy conversion, and tuning module comprises that preposition microphone signal amplifies, preposition sound source signal amplifies and audio mixing three links, and power amplifier module comprises the amplifying element of final power.The housing of the radio multimedium audio amplifier of a kind of photovoltaic switch technology of the present embodiment be small-sized, be convenient to movement, its pre-line adopts microminiature resistance and potentiometer, and the D class power amplifier of employing is green, energy-conservation, efficient.
The radio multimedium audio amplifier of a kind of photovoltaic switch technology of the present embodiment, photovoltaic modular converter comprises a kind of charging device in embodiment 2, and tuning module comprises a kind of tuning device in embodiment 1.
Schematically above be described the utility model and execution mode thereof, this description does not have restricted, and also just one of the execution mode of the present utility model shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, designing the frame mode similar to this technical scheme and embodiment without creationary, protection range of the present utility model all should be belonged to.
Claims (7)
1. a tuning device, after comprising the input module that inputs initial sound source signal and exporting tuning, the output module of sound source signal, is characterized in that, also comprise
Decoder module, sends to amplification module after the initial sound source signal decoding transmitted by the input module received;
Amplification module, the signal transmitted by the decoder module received sends to tuning module after amplifying;
Tuning module, is sent to power amplifier module after the Signal Regulation that the amplification module received is transmitted;
Power amplifier module, the signal power tuning module received transmitted sends to output module after amplifying;
Power module, powers to tuning module and power amplifier module;
Temperature sensor, is converted to the signal of telecommunication by power amplifier module surface temperature information and sends to radiator fan; And
Radiator fan, receives the signal of telecommunication that temperature sensor transmits.
2. a kind of tuning device according to claim 1, is characterized in that, decoder module comprises MP3 digital tone source decoder module.
3. a kind of tuning device according to claim 1, is characterized in that, amplification module comprises 84 operation amplifier chips.
4. a kind of tuning device according to claim 1, is characterized in that, tuning module comprises high, medium and low sound tone network, Audio mixing unit, reverberation unit and seven sections of EQ Graphic equalizer unit.
5. a kind of tuning device according to claim 1, is characterized in that, also comprise display module, display module and tuning model calling.
6. a kind of tuning device according to claim 1, is characterized in that, power module comprises rectification circuit and short-circuit protection circuit.
7. a kind of tuning device according to claim 1, is characterized in that, power amplifier module is for adopting class AB audio power amplifying circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420205871.2U CN204069234U (en) | 2014-04-25 | 2014-04-25 | A kind of tuning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420205871.2U CN204069234U (en) | 2014-04-25 | 2014-04-25 | A kind of tuning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204069234U true CN204069234U (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420205871.2U Expired - Fee Related CN204069234U (en) | 2014-04-25 | 2014-04-25 | A kind of tuning device |
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| Country | Link |
|---|---|
| CN (1) | CN204069234U (en) |
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2014
- 2014-04-25 CN CN201420205871.2U patent/CN204069234U/en not_active Expired - Fee Related
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