CN205378052U - Flat screen television and flat screen television system - Google Patents
Flat screen television and flat screen television system Download PDFInfo
- Publication number
- CN205378052U CN205378052U CN201521059324.9U CN201521059324U CN205378052U CN 205378052 U CN205378052 U CN 205378052U CN 201521059324 U CN201521059324 U CN 201521059324U CN 205378052 U CN205378052 U CN 205378052U
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- audio
- power supply
- flat panel
- supply output
- output module
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- 230000003321 amplification Effects 0.000 claims abstract description 35
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 35
- 230000005236 sound signal Effects 0.000 claims abstract description 20
- 239000004065 semiconductor Substances 0.000 claims description 29
- 238000009414 blockwork Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Abstract
The utility model discloses a flat screen television and flat screen television system. Wherein, flat screen television includes built -in audio amplification module, built -in loudspeaker, audio interface, host system, audio frequency power source and power supply output module. When not having external device to insert, make built -in audio amplification module driving machine inside trumpet sound production by the host system output audio signal, when external device inserts audio interface, to export quiet sound control system signal by host system and make built -in audio amplification module stop work and make power supply output module open, external device was directly supplied power by flat screen television this moment, and the host system output audio signal passes through power supply output module and transmits the sound production for external device. The utility model discloses a when the user does not need high tone quality, only need to purchase flat screen television, the cost does not basically increase, when needs high tone quality, can connect external device and to its power supply, control flat screen television's power, power supply that just can simultaneous control external device, convenience of customers operates.
Description
Technical field
This utility model relates to home appliance, particularly to a kind of flat panel TV and flat-panel television.
Background technology
Flat panel TV appearance looks elegant and the ultra-thin welcome being subject to users, flat panel TV is owing to being limited by space and modeling structure, it is impossible to use heavy caliber loudspeaker.And the speaker sound sensing of flat panel TV is typically all downwards or backward, sound effect is generally bad.There is the user that some are higher to sound requirement, generally can increase to flat panel TV again and join a sound system.
Generally having two kinds of design forms in current sound system and flat panel TV: the first is at the internally installed sound amplifying circuit of flat panel TV, the audio signal of flat panel TV output directly drives the loudspeaker of audio amplifier to work；The second is that flat panel TV does not have sound amplifying circuit, and flat panel TV only exports not past the audio signal amplified, it is impossible to directly driving loudspeaker work, by driving loudspeaker to work at the internally installed sound amplifying circuit of audio amplifier, now audio amplifier needs external power supply.
But, above two mode all existing defects: first kind of way arranges sound amplifying circuit external speaker inside flat panel TV, but is not that each user has this requirement, and the production cost of this flat panel TV is expensive, affects sales volume；Time the second way needs user to open TV every time, the power supply also wanting sound producing to ring, also to close the power supply of audio amplifier, troublesome poeration, and need user's one attaching plug interface of many outfits when switching off the TV.
Thus prior art need to improve.
Utility model content
In view of above-mentioned the deficiencies in the prior art part, the purpose of this utility model is in that to provide a kind of flat panel TV and flat-panel television, when user needs high tone quality, can using external equipment, flat panel TV cost does not increase substantially, and, when user needs to use external equipment, being powered directly to external equipment by flat panel TV, the operation of a Switching Power Supply, it is easy to operate.
In order to achieve the above object, this utility model takes techniques below scheme:
nullA kind of flat panel TV，Including audio amplification block in machine、Machine inside trumpet、Export audio signal for the audio interface and being used for of grafting external equipment and make audio amplification block work in machine、And output mute control signal makes the out-of-work main control module of audio amplification block in machine，The first input end of audio amplification block in the audio signal output end connection machine of described main control module，Second input of audio amplification block in the quiet control signal outfan connection machine of main control module，In machine, the outfan of audio amplification block connects machine inside trumpet，The middle fracture of described main control module and audio signal output end connect described audio interface，Described flat panel TV also includes audio-frequency electric source interface and power supply output module，The feeder ear of power supply output module connects VIN feeder ear，The end that controls of power supply output module connects the quiet control signal outfan of main control module，The outfan of power supply output module connects audio-frequency electric source interface.
In described flat panel TV, described power supply output module includes: audion, the first resistance, the second resistance, electric capacity and metal-oxide-semiconductor；One end of first resistance is the quiet control signal outfan controlling end, connection main control module of power supply output module, the other end of the first resistance connects the base stage of described audion, the colelctor electrode of audion connects one end of electric capacity and the grid of metal-oxide-semiconductor by the second resistance, the source electrode of metal-oxide-semiconductor is the feeder ear of power supply output module, the other end connecting electric capacity and described VIN feeder ear, the outfan that drain electrode is power supply output module of metal-oxide-semiconductor, connection audio-frequency electric source interface.
In described flat panel TV, described power supply output module also includes the 3rd resistance, and one end of described 3rd resistance connects the source electrode of VIN feeder ear and metal-oxide-semiconductor, the colelctor electrode of the other end connecting triode of the 3rd resistance.
In described flat panel TV, described audion is NPN audion.
In described flat panel TV, described metal-oxide-semiconductor is PMOS.
In described flat panel TV, the audio frequency cable joint of described external equipment is connected with audio interface, and the power cord connector of external equipment is connected with audio-frequency electric source interface.
A kind of flat-panel television, including external equipment and flat panel TV as above, the audio frequency cable joint of described external equipment is connected with the audio interface of flat panel TV, and the power cord connector of external equipment is connected with the audio-frequency electric source interface of flat panel TV.
In described flat-panel television, described external equipment is audio amplifier.
Compared to prior art, the flat panel TV of this utility model offer and flat-panel television, its flat panel TV includes audio amplification block in machine, machine inside trumpet, audio interface, main control module, audio-frequency electric source interface and power supply output module, the first input end of audio amplification block in the audio signal output end connection machine of described main control module, second input of audio amplification block in the quiet control signal outfan connection machine of main control module, in machine, the outfan of audio amplification block connects machine inside trumpet, the middle fracture of described main control module connects described audio interface, the feeder ear of power supply output module connects VIN feeder ear, the end that controls of power supply output module connects the quiet control signal outfan of main control module, the outfan of power supply output module connects audio-frequency electric source interface.When not having external equipment to access, main control module export audio signal and make audio amplification block in machine drive machine inside trumpet sounding；When external equipment inserts audio interface, made audio amplification block in machine quit work by main control module output mute control signal and make power supply output module open, now external equipment is directly powered by flat panel TV, and main control module output audio signal is transferred to external equipment sounding by power supply output module.This utility model achieves when user does not need high tone quality, only need to buy flat panel TV, cost does not increase substantially, when needs high tone quality, external equipment can be connected, and external equipment is directly powered by flat panel TV, control the power supply of flat panel TV, the power supply that just can simultaneously control external equipment only needs the process of a Switching Power Supply, user-friendly.
Accompanying drawing explanation
The flat panel TV circuit diagram that Fig. 1 provides for this utility model.
Detailed description of the invention
This utility model provides a kind of flat panel TV and flat-panel television, when user does not require to use external speaker to provide high-quality sound, just the same with existing mode, use the loudspeaker within flat panel TV machine, the internal external power supply output module of flat panel TV machine does not work.Now, the audio-frequency electric source interface of flat panel TV not with the connection of audio amplifier power supply, flat panel TV also without power supply export.When user requires to use external speaker to provide high-quality sound, the audio signal not past amplification of flat panel TV output to audio amplifier, flat panel TV audio-frequency electric source interface and audio amplifier power supply are linked together by connecting line simultaneously, and the audio signal by the sound amplifying circuit within audio amplifier, flat panel TV exported afterwards amplifies the work of rear drive speaker.
For making the purpose of this utility model, technical scheme and effect clearly, clearly, develop simultaneously embodiment to this utility model further description referring to accompanying drawing.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
Refer to Fig. 1, the flat panel TV that this utility model provides includes audio amplification block 10 in machine, machine inside trumpet 20, for the audio interface 30 of grafting external equipment be used for exporting audio signal and make audio amplification block 10 in machine work, and output mute control signal makes the out-of-work main control module 40 of audio amplification block 10 in machine, the first input end of audio amplification block 10 in the audio signal output end connection machine of described main control module 40, second input of audio amplification block 10 in the quiet control signal outfan connection machine of main control module 40, in machine, the outfan of audio amplification block 10 connects machine inside trumpet 20, the middle fracture of described main control module 40 and audio signal output end connect described audio interface 30.
Described flat panel TV also includes audio-frequency electric source interface 50 and power supply output module 60, the feeder ear of power supply output module 60 connects VIN feeder ear, the end that controls of power supply output module 60 connects the quiet control signal outfan of main control module 40, and the outfan of power supply output module 60 connects audio-frequency electric source interface 50.
In the present embodiment, described external equipment can adopt audio amplifier, and the audio frequency cable joint of external equipment is connected with audio interface 30, and the power cord connector of external equipment is connected with audio-frequency electric source interface 50.Power supply output module 60 can provide the voltages such as 12V, 18V, 24V to power to external equipment.
When not having external equipment to access, main control module 40 export audio signal and make audio amplification block 10 in machine drive machine inside trumpet 20 sounding；When external equipment inserts audio interface 30, audio amplification block 10 in machine is made to quit work by main control module 40 output mute control signal, and make power supply output module 60 open, now external equipment is directly powered by flat panel TV, main control module 40 exports audio signal and is transferred to external equipment sounding by power supply output module 60, it is achieved thereby that when user does not need high tone quality, only need to buy flat panel TV, cost does not increase substantially, when needs high tone quality, external equipment can be connected, and external equipment is directly powered by flat panel TV, control the power supply of flat panel TV, flat panel TV just can control powering of external equipment simultaneously only needs the process of a Switching Power Supply, user-friendly.
Please continue to refer to Fig. 1, described power supply output module 60 includes: audion Q1, the first resistance R1, the second resistance R2, electric capacity C1 and metal-oxide-semiconductor Q2；One end of first resistance R1 is the quiet control signal outfan controlling end, connection main control module 40 of power supply output module 60, the other end of the first resistance R1 connects the base stage of described audion Q1, the colelctor electrode of audion Q1 connects one end of electric capacity C1 and the grid of metal-oxide-semiconductor Q2 by the second resistance R2, the source electrode of metal-oxide-semiconductor Q2 is the feeder ear of power supply output module 60, the other end connecting electric capacity C1 and described VIN feeder ear, the outfan that drain electrode is power supply output module 60 of metal-oxide-semiconductor Q2, connection audio-frequency electric source interface 50.
When quiet control signal is high level, audion Q1 turns on, so that the grid of metal-oxide-semiconductor Q2 becomes low level, makes metal-oxide-semiconductor Q2 turn on, and the power supply of flat panel TV will be powered to external equipment.(not having quiet control signal) when quiet control signal is low level, metal-oxide-semiconductor Q2 ends, and flat panel TV would not supplying power for outside.
In the present embodiment, described audion Q1 is NPN audion, audion Q1 cut-off when audion Q1 conducting, base stage are low level when its base stage is high level.Described metal-oxide-semiconductor Q2 is PMOS, the metal-oxide-semiconductor Q2 conducting when its grid is low level, the metal-oxide-semiconductor Q2 cut-off when its grid is high level.Application note, audion Q1 and metal-oxide-semiconductor Q2 all can use other electronic device to replace, as: audion Q1 can use NMOS tube to replace, and metal-oxide-semiconductor Q2 can use PNP triode replacement etc., and this is not limited as by this utility model.
Further, described power supply output module 60 also includes one end connection VIN feeder ear of the 3rd resistance R3, described 3rd resistance R3 and the source electrode of metal-oxide-semiconductor Q2, the colelctor electrode of the other end connecting triode Q1 of the 3rd resistance R3.
In flat panel TV of the present utility model, audion Q1, the first resistance R1, the second resistance R2, electric capacity C1, metal-oxide-semiconductor Q2, the 3rd resistance R3 are conventional surface mount elements.Visible, power supply output module 60 only used the electronic device of several routine, and the cost of flat panel TV does not increase substantially.
This utility model correspondingly provides a kind of flat-panel television, including external equipment and described flat panel TV, the audio frequency cable joint of described external equipment is connected with the audio interface of flat panel TV, and the power cord connector of external equipment is connected with the audio-frequency electric source interface of flat panel TV.Wherein, described external equipment is audio amplifier.Due to above flat panel TV be described in detail, repeat no more herein.
Thinking and be better understood from this utility model, following external equipment is audio amplifier, and in conjunction with Fig. 1, the working method of flat-panel television is described in detail:
In flat panel TV, in machine, audio amplification block 10, machine inside trumpet 20, audio interface 30 and main control module 40 are existing device.
When only having (when such as plugging in the earphone) when audio interface 30 connects external equipment, audio interface 30 produces to interrupt to main control module 40, now flat panel TV needs output acoustical signal to external equipment, now, main control module 40 sends quiet control signal to audio amplification block in machine 10, audio amplification block 10 in machine is made to quit work, the function that the existing flat panel TV of this control mode all has.
When audio interface 30 and audio-frequency electric source interface 50 are all connected with external equipment, what expression was now inserted is audio amplifier, main control module 40 sends quiet control signal to audio amplification block in machine 10 equally, internal sound amplifying circuit is made to quit work, now quiet control signal is high level, makes audion Q1 turn on, so that the grid of metal-oxide-semiconductor Q2 becomes low level, making metal-oxide-semiconductor Q2 turn on, the power supply of flat panel TV will be powered to external equipment.
During flat panel TV shutdown, in machine, audio amplification block 10 and power supply output module 60 are not all powered, it is achieved external subwoofer also out-of-work function simultaneously during flat panel TV shutdown.When flat panel TV works and it needs to use external speaker, metal-oxide-semiconductor Q2 turns on, and external speaker is powered simultaneously and made its normal operation by flat panel TV.
In sum, this utility model achieves when user does not need high tone quality, only need to buy flat panel TV, cost does not increase substantially, when needs high tone quality, it is possible to connect external equipment, and external equipment is directly powered by flat panel TV, control the power supply of flat panel TV, it is possible to the power supply simultaneously controlling external equipment only needs the process of a Switching Power Supply, user-friendly.
It is understandable that; for those of ordinary skills; can conceive according to the technical solution of the utility model and utility model thereof and be equal to replacement or change, and all these change or replace the scope of the claims that all should belong to appended by this utility model.
Claims (8)
- null1. a flat panel TV，Including audio amplification block in machine、Machine inside trumpet、Export audio signal for the audio interface and being used for of grafting external equipment and make audio amplification block work in machine、And output mute control signal makes the out-of-work main control module of audio amplification block in machine，The first input end of audio amplification block in the audio signal output end connection machine of described main control module，Second input of audio amplification block in the quiet control signal outfan connection machine of main control module，In machine, the outfan of audio amplification block connects machine inside trumpet，The middle fracture of described main control module and audio signal output end connect described audio interface，It is characterized in that，Described flat panel TV also includes audio-frequency electric source interface and power supply output module，The feeder ear of power supply output module connects VIN feeder ear，The end that controls of power supply output module connects the quiet control signal outfan of main control module，The outfan of power supply output module connects audio-frequency electric source interface.
- 2. flat panel TV according to claim 1, it is characterised in that described power supply output module includes: audion, the first resistance, the second resistance, electric capacity and metal-oxide-semiconductor；One end of first resistance is the quiet control signal outfan controlling end, connection main control module of power supply output module, the other end of the first resistance connects the base stage of described audion, the colelctor electrode of audion connects one end of electric capacity and the grid of metal-oxide-semiconductor by the second resistance, the source electrode of metal-oxide-semiconductor is the feeder ear of power supply output module, the other end connecting electric capacity and described VIN feeder ear, the outfan that drain electrode is power supply output module of metal-oxide-semiconductor, connection audio-frequency electric source interface.
- 3. flat panel TV according to claim 2, it is characterised in that described power supply output module also includes the 3rd resistance, one end of described 3rd resistance connects the source electrode of VIN feeder ear and metal-oxide-semiconductor, the colelctor electrode of the other end connecting triode of the 3rd resistance.
- 4. flat panel TV according to claim 2, it is characterised in that described audion is NPN audion.
- 5. flat panel TV according to claim 2, it is characterised in that described metal-oxide-semiconductor is PMOS.
- 6. flat panel TV according to claim 1, it is characterised in that the audio frequency cable joint of described external equipment is connected with audio interface, the power cord connector of external equipment is connected with audio-frequency electric source interface.
- 7. a flat-panel television, including external equipment, it is characterized in that, also include the flat panel TV as described in claim 1-6 any one, the audio frequency cable joint of described external equipment is connected with the audio interface of flat panel TV, and the power cord connector of external equipment is connected with the audio-frequency electric source interface of flat panel TV.
- 8. flat-panel television according to claim 7, it is characterised in that described external equipment is audio amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521059324.9U CN205378052U (en) | 2015-12-18 | 2015-12-18 | Flat screen television and flat screen television system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521059324.9U CN205378052U (en) | 2015-12-18 | 2015-12-18 | Flat screen television and flat screen television system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205378052U true CN205378052U (en) | 2016-07-06 |
Family
ID=56259218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521059324.9U Expired - Fee Related CN205378052U (en) | 2015-12-18 | 2015-12-18 | Flat screen television and flat screen television system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205378052U (en) |
-
2015
- 2015-12-18 CN CN201521059324.9U patent/CN205378052U/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 |
Granted publication date: 20160706 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |