CN205961411U - High -decibel audio driver ware - Google Patents
High -decibel audio driver ware Download PDFInfo
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- CN205961411U CN205961411U CN201620973093.0U CN201620973093U CN205961411U CN 205961411 U CN205961411 U CN 205961411U CN 201620973093 U CN201620973093 U CN 201620973093U CN 205961411 U CN205961411 U CN 205961411U
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Abstract
The utility model discloses a high -decibel audio driver ware, including microcontroller, MOS driver that connects gradually and the audio frequency terminal that is used for connecting the speaker, microcontroller's input termination has power module and keyboard module, the MOS driver is chip L6201, chip L6201's ENABLE pin, IN1 pin and IN2 pin all meet with microcontroller. The utility model discloses need not bias circuit, simple structure, the inside MOS of MOS driver pipe adopt full -bridge structure, can make full use of mains voltage, and efficiency can reach more than 95%, and the sound source generates nimble conveniently, uses convenient operation, and the practicality is strong, excellent in use effect, convenient to popularize and use.
Description
Technical field
The utility model belongs to audio driven technical field and in particular to a kind of high-decibel audio driver.
Background technology
The broadcasting of audio frequency typically requires addition audio driver and is driven, and current audio driver adopts tradition mostly
Class-a amplifier, class-b amplifier or class ab ammplifier, class-a amplifier is widely used as audio-frequency amplifier, permissible at work
The signal of input is all linearized, but class-a amplifier is less efficient, generally no greater than 25%, a large amount of electric energy become heat
Energy.Class-b amplifier can be described as a kind of amplifier the most popular, and the amplifier being produced at present has 90% to belong to the amplification of B class
Device.Class-b amplifier power consumption is less, and efficiency can reach more than 75%, but in order to distortionless amplification is carried out to the signal half period,
Class-b amplifier must be added to suitable biasing circuit and provides bias current, causes circuit complicated.Class ab ammplifier is opened up using half-bridge
Flutter structure, power tube is operated in Linear Amplifer state, the voltage drop between hourglass source electrode is very big, instantaneous power consumption is big, voltage utilization
Low, even if the output of maximum magnitude, its maximal efficiency also only has 78% about.It is thus desirable to a kind of structure is simple, reasonable in design
High-decibel audio driver, the inside metal-oxide-semiconductor of MOS driver adopts full bridge structure, without biasing circuit, can make full use of
Supply voltage, is operated in nonlinear switching state, and efficiency, up to more than 95%, improves supply voltage utilization rate, increased defeated
Go out power, that is, audio output decibel is high.
Utility model content
Technical problem to be solved in the utility model is, for above-mentioned deficiency of the prior art, to provide a kind of high score
Shellfish audio driver,, without biasing circuit, structure is simple, and the inside metal-oxide-semiconductor of MOS driver adopts full bridge structure, Neng Gouchong for it
Divide and utilize supply voltage, increased power output, source of sound generates flexible, using easy to operate, practical, using effect
Good, it is easy to promote the use of.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of high-decibel audio driver, its
It is characterised by：Including the microcontroller being sequentially connected, MOS driver and the audio terminal for connecting loudspeaker, described micro-control
The input of device processed is terminated with power module and Keysheet module, and described MOS driver is chip L6201, described chip L6201's
ENABLE pin, IN1 pin and IN2 pin are all connected with microcontroller, the VS pin of described chip L6201 and 12V voltage source
Connect.
A kind of above-mentioned high-decibel audio driver it is characterised in that：Described audio terminal includes terminal J1, described terminal
1st pin of J1 divides two-way, and a road is connected with the OUT1 pin of chip L6201, and another road is through electric capacity C7 and chip L6201's
BOOT1 pin connects, and the 2nd pin of described terminal J1 divides two-way, and a road is connected with the OUT2 pin of chip L6201, Ling Yilu
Connect with the BOOT2 pin of chip L6201 through electric capacity C10.
A kind of above-mentioned high-decibel audio driver it is characterised in that：Described power module includes chip MC78L05, institute
The VIN pin stating chip MC78L05 divides three tunnels, and a road is connected with one end of electric capacity C1, and the second tunnel is connected with one end of electric capacity C2,
3rd tunnel is connected with 12V voltage source, and the other end of described electric capacity C1 and the other end of electric capacity C2 are all grounded, described chip
The VOUT pin of MC78L05 is connected with microcontroller.
A kind of above-mentioned high-decibel audio driver it is characterised in that：Described microcontroller includes chip
STC15W401AS_SOP16.
The utility model compared with prior art has advantages below：
1st, without biasing circuit, structure is simple, and reliability is high for the utility model.
2nd, the inside metal-oxide-semiconductor of the utility model MOS driver adopts full bridge structure, no biasing circuit, does not consume during work
Electric energy, can make full use of supply voltage, and in nonlinear switching state, efficiency, up to more than 95%, improves drive circuit works
Supply voltage utilization rate, increased power output.
3rd, the utility model generates PWM ripple by microcontroller, realizes audio output, and source of sound generates flexibly and easily,
Single-frequency, linear frequency modulation, the various source of sound pattern such as random frequency can be produced, power output can be adjusted on a large scale.
In sum, without biasing circuit, structure is simple, and the inside metal-oxide-semiconductor of MOS driver adopts full-bridge for the utility model
Structure, can make full use of supply voltage, and up to more than 95%, source of sound generates flexible, using easy to operate, practicality efficiency
Property strong, using effect is good, is easy to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Brief description
Fig. 1 is schematic block circuit diagram of the present utility model.
Fig. 2 is the circuit connection diagram of the utility model microcontroller and power module.
Fig. 3 is the circuit connection diagram of the utility model MOS driver and audio terminal.
Description of reference numerals:
1 microcontroller；2 MOS drivers；3 audio terminal；
4 power modules；5 power modules.
Specific embodiment
As shown in figure 1, the utility model include being sequentially connected microcontroller 1, MOS driver 2 and raising one's voice for connection
The audio terminal 3 of device, the input of described microcontroller 1 is terminated with power module 4 and Keysheet module 5.
As shown in Fig. 2 in the present embodiment, described microcontroller 1 includes chip STC15W401AS_SOP16.
As shown in figure 3, in the present embodiment, described MOS driver 2 is chip L6201, the ENABLE of described chip L6201
Pin is connected with the P12 pin of chip STC15W401AS_SOP16, and the IN1 pin of described chip L6201 and IN2 pin are respectively
Connect with the P11 pin of chip STC15W401AS_SOP16 and P10 pin, the VS pin of described chip L6201 and 12V voltage
Source connects.
As shown in figure 3, in the present embodiment, described audio terminal 3 includes terminal J1, the 1st pin of described terminal J1 divides two
Road, a road is connected with the OUT1 pin of chip L6201, and another road is connected with the BOOT1 pin of chip L6201 through electric capacity C7, institute
The 2nd pin stating terminal J1 divides two-way, and a road is connected with the OUT2 pin of chip L6201, and another road is through electric capacity C10 and chip
The BOOT2 pin of L6201 connects.
As shown in Fig. 2 in the present embodiment, described power module 4 includes chip MC78L05, described chip MC78L05's
VIN pin divides three tunnels, and a road is connected with one end of electric capacity C1, and the second tunnel is connected with one end of electric capacity C2, the 3rd tunnel and 12V voltage
Source connects, and the other end of described electric capacity C1 and the other end of electric capacity C2 are all grounded, the VOUT pin of described chip MC78L05 and core
The VCC pin of piece STC15W401AS_SOP16 connects.
When being embodied as, source of sound pattern is selected by Keysheet module 5, single-frequency, linear frequency modulation and random frequency can be selected
Etc. various source of sound patterns, microcontroller 1 is used for producing PWM ripple and control signal, and PWM modulation technology can realize power output
Adjust on a large scale, MOS driver 2 is used for generating the driving voltage driving needed for internal metal-oxide-semiconductor, and by output signal through audio frequency end
Son 3 is connected with loudspeaker.MOS driver 2 adopts the MOS full bridge driver of model L6201, and internal metal-oxide-semiconductor is operated in switch
State, the ratio metal-oxide-semiconductor small power consumption being operated in Linear Amplifer state in conventional MOS driver, improve the efficiency of MOS driver 2,
The inside metal-oxide-semiconductor of MOS driver 2 adopts full bridge structure, no biasing circuit simultaneously, does not consume electric energy during work, can be fully sharp
With supply voltage, drive circuit works in nonlinear switching state, up to more than 95%, realize high-decibel output, improve by efficiency
Supply voltage utilization rate, and increased power output.
The above, be only embodiment of the present utility model, not the utility model imposed any restrictions, every according to this
Any simple modification, change and equivalent structure change that utility model technical spirit is made to above example, all still fall within
In the protection domain of technical solutions of the utility model.
Claims (4)
1. a kind of high-decibel audio driver it is characterised in that：Including the microcontroller (1) being sequentially connected, MOS driver (2)
With the audio terminal (3) for connecting loudspeaker, the input of described microcontroller (1) is terminated with power module (4) and keyboard mould
Block (5), described MOS driver (2) is chip L6201, the ENABLE pin of described chip L6201, IN1 pin and IN2 pin
All connect with microcontroller (1), the VS pin of described chip L6201 is connected with 12V voltage source.
2. according to a kind of high-decibel audio driver described in claim 1 it is characterised in that：Described audio terminal (3) includes
1st pin of terminal J1, described terminal J1 divides two-way, and a road is connected with the OUT1 pin of chip L6201, and another road is through electric capacity C7
Connect with the BOOT1 pin of chip L6201, the 2nd pin of described terminal J1 divides two-way, the OUT2 of a road and chip L6201 draws
Pin connects, and another road is connected with the BOOT2 pin of chip L6201 through electric capacity C10.
3. according to a kind of high-decibel audio driver described in claim 1 it is characterised in that：Described power module (4) includes
The VIN pin of chip MC78L05, described chip MC78L05 divides three tunnels, and a road is connected with one end of electric capacity C1, the second tunnel with electricity
The one end holding C2 connects, and the 3rd tunnel is connected with 12V voltage source, and the other end of described electric capacity C1 and the other end of electric capacity C2 all connect
Ground, the VOUT pin of described chip MC78L05 is connected with microcontroller (1).
4. according to a kind of high-decibel audio driver described in claim 1 it is characterised in that：Described microcontroller (1) includes
Chip STC15W401AS_SOP16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620973093.0U CN205961411U (en) | 2016-08-26 | 2016-08-26 | High -decibel audio driver ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620973093.0U CN205961411U (en) | 2016-08-26 | 2016-08-26 | High -decibel audio driver ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205961411U true CN205961411U (en) | 2017-02-15 |
Family
ID=57980321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620973093.0U Expired - Fee Related CN205961411U (en) | 2016-08-26 | 2016-08-26 | High -decibel audio driver ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205961411U (en) |
-
2016
- 2016-08-26 CN CN201620973093.0U patent/CN205961411U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20180826 |