CN2807653Y - TV set with supper bass high power sound equipment - Google Patents
TV set with supper bass high power sound equipment Download PDFInfo
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- CN2807653Y CN2807653Y CN 200520108942 CN200520108942U CN2807653Y CN 2807653 Y CN2807653 Y CN 2807653Y CN 200520108942 CN200520108942 CN 200520108942 CN 200520108942 U CN200520108942 U CN 200520108942U CN 2807653 Y CN2807653 Y CN 2807653Y
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Abstract
The utility model discloses a TV set with extra bass sound equipment with high power. The audio signals of the TV set are input to an accompanying sound processing circuit after the audio signals are demodulated by an accompanying sound demodulating circuit. Right sound channel signals, left sound channel signals, alt signals and extra bass signals are output after the sound signals are processed, and the right sound channel signals and the left sound channel signals are input to a main sound channel amplifying circuit to carry out power amplification. The alt signals are input to an alt amplifying circuit to carry out power amplification, and the extra bass signals are input to an extra bass amplifying circuit to carry out power amplification. The alt amplifying circuit, the extra bass amplifying circuit and the main sound channel amplifying circuit are respectively connected with a hierarchy regulating loudspeaker. The utility model solves the problems of bad sound effect and no sound hierarchy of the existing TV set with small size.
Description
Technical field
The utility model relates to a kind of television set, relates in particular to a kind of small size television set that has extra bass high power acoustics.
Background technology
Along with the development of TV tech, people are more and more higher to the acoustic requirement of TV, and for satisfying the requirement of people to television field frame, the power of the sound equipment on the large scale TV increases, high-fidelity, and the introduction of functions such as surround sound is become better and better effect.But existing small size television set refers generally to the television set below 21 cun, and its sound system all adopts 1 or 2 loud speakers mostly, has only the output of monophony or stereophony.Its power is less, is blank on supper bass, high pitch, causes sound effect relatively poor, can not satisfy people's needs.
Utility model patent CN2501273Y a kind of high-power, high-fidelity surround sound television set of openly knowing clearly, this television set comprises surround sound process chip, sound accompaniment process chip, main sound channel audio power amplifier, mega bass power amplifier and control bus.Its operation principle is: the two paths of signals of left and right sound channels is introduced into the surround sound process chip and carries out the surround sound processing, left and right sound channels signal after treatment enters the sound accompaniment process chip again and carries out processing such as high bass, balance, volume control, and then send into the main sound channel audio power amplifier, the signal after amplifying drives left and right two loud speakers respectively; Be input to the sound accompaniment process chip after the signal of left and right sound channels is compound, carry out outputing to the mega bass power amplifier after low pass amplification, strength control, the switch switching in inside, through amplifying rear drive mega bass loud speaker; Total line traffic control sound accompaniment process chip, high bass, balance, the volume finished left and right acoustic channels are regulated switch switching and the strength control that reaches supper bass, and control ring is finished the switching of three kinds of surround sound states around the sonication chip.But, though this patented technology has been used left and right two loud speakers and mega bass loud speaker totally three loud speakers, still exist sound effect to lack stereovision, and its power is less, distance spectators far away can't enjoy the defective of optimum efficiency under same environment.
The utility model content
At above-mentioned deficiency, the purpose of this utility model is to provide a kind of sound effect good, and stereovision is strong, far also can experience the television set of the band extra bass high power acoustics of optimum efficiency under equivalent environment apart from television set.
For achieving the above object, the utility model is by the following technical solutions: a kind of television set with extra bass high power acoustics of the present invention, comprise sound equipment part and power amplifying part, described sound portion branch comprises sound demodulation circuit, sound accompaniment treatment circuit, it is characterized in that also comprising two high pitch loudspeakers, two supper bass adjusting loud speakers, two main sound channel loud speakers, described power amplifying part comprises high pitch amplifying circuit, supper bass amplifying circuit, main sound channel amplifying circuit; The audio signal of described television set is after the demodulation of described sound demodulation circuit, be input to described sound accompaniment treatment circuit, described audio signal after treatment, left and right sound track signals is input to after described main sound channel amplifying circuit carries out power amplification, be input to described two main sound channel loud speakers, regulate the main sound channel stereovision; High pitched signal is input to after described high pitch amplifying circuit carries out power amplification, is input to described two high pitch loudspeakers, regulates the high pitch stereovision; The supper bass signal is input to after described supper bass amplifying circuit carries out power amplification, is input to described two subwoofers, regulates the supper bass stereovision.Described main sound channel amplifying circuit peak power output is 30 watts, and described supper bass amplifying circuit peak power output is 60 watts, and described high pitch amplifying circuit peak power output is 30 watts.
The utility model sound accompaniment effect has telepresenc more, and bass is more powerful, has more the shock effect.Described main sound channel amplifying circuit peak power output is 30 watts, described supper bass amplifying circuit peak power output is 60 watts, described high pitch amplifying circuit peak power output is 30 watts, and totally 120 watts sound power has reached the effect of small size high power acoustics TV.
Description of drawings
Fig. 1 is the circuit theory diagrams of the television set of the utility model band extra bass high power acoustics.
Fig. 2 is the sound accompaniment treatment circuit figure of the television set of the utility model band extra bass high power acoustics.
Fig. 3 is the block diagram of audio power amplifier of the television set of the utility model band extra bass high power acoustics.
Fig. 4 is the physical circuit figure of audio power amplifier of the television set of the utility model band extra bass high power acoustics.
Fig. 5 is the supper bass amplification circuit diagram of the television set of the utility model band extra bass high power acoustics.
Embodiment
With reference to accompanying drawing 1, be the circuit theory diagrams of the television set of the utility model band extra bass high power acoustics.It comprises sound demodulation circuit, sound accompaniment treatment circuit, high pitch amplifying circuit, supper bass amplifying circuit, main sound channel amplifying circuit, the audio signal of described television set at first enters the sound demodulation circuit, after the demodulation of described sound demodulation circuit, be input to described sound accompaniment treatment circuit, the audio power amplifier circuit that left and right acoustic channels after treatment, high pitch and supper bass signal are sent into separately amplifies, and left and right sound track signals is input to the main sound channel amplifying circuit and carries out power amplification; High pitched signal is input to the high pitch amplifying circuit and carries out power amplification; The supper bass signal is input to the supper bass amplifying circuit and carries out power amplification; High pitch amplifying circuit, supper bass amplifying circuit, main sound channel amplifying circuit are connected with corresponding loud speaker respectively, and wherein, the high pitch amplifying circuit is connected with two high pitch loudspeakers, regulate the high pitch stereovision.The supper bass amplifying circuit is connected with two subwoofers, regulates the supper bass stereovision, and the main sound channel amplifying circuit is connected with two main sound channel loud speakers, regulates the main sound channel stereovision.Described main sound channel amplifying circuit peak power output is 30 watts, and described supper bass amplifying circuit peak power output is 60 watts, and described high pitch amplifying circuit peak power output is 30 watts.
With reference to accompanying drawing 2 is the sound accompaniment treatment circuit figure of the television set of the utility model band extra bass high power acoustics.Its sound accompaniment treatment circuit uses the TA1343N of Toshiba treatment circuit; After the audio signal of left and right acoustic channels is input to 6 and 8 pin of TA1343N sound accompaniment processing integrated circuit, carry out SRS, the processing of 3D surround sound in inside, the control of high bass, balance, the far and near level of volume, afterwards, 16 of TA1343N sound accompaniment processing integrated circuit, 13 pin are exported the sound of L, two main sound channels of R respectively; The 12 pin output supper bass signal of TA1343N sound accompaniment processing integrated circuit.I
2The data wire SDA of C control bus and clock line SCL are connected 24,23 pin of TA1343N sound accompaniment processing integrated circuit respectively, at I
2Finish the adjusting of high bass to left and right acoustic channels, balance, volume level under the total line traffic control of C and the switch of supper bass is switched and the control of intensity.
Accompanying drawing 3 and 4 is respectively the sound accompaniment left and right acoustic channels amplifying circuit and the loudspeaker method of attachment schematic diagram of the television set of the utility model band extra bass high power acoustics.TDA7297 audio power amplifier circuit comprises L, R sound signal amplifying circuit.Described L sound signal amplifying circuit comprises two amplifiers, and the positive pole of this amplifier links by a resistance, and negative pole links by another resistance, and described amplifier in is connected with electric capacity, and output is connected with described main sound channel loud speaker.Described R sound signal amplifying circuit comprises two amplifiers, and the positive pole of this amplifier links by a resistance, and negative pole links by another resistance, and described amplifier in is connected with electric capacity, and output is connected with described main sound channel loud speaker.
After the TDA7297 amplifying circuit that the left and right acoustic channels amplifying circuit uses ST is input to TDA7297 audio power amplifier integrated circuit from the voice signal of the left and right sound channels of TA1343N sound accompaniment treatment circuit output, TDA7297 audio power amplifier integrated circuit amplifies the back in 1-2 and 14-15 output left and right sound track signals with input audio signal under the 16V voltage of 3 and 13 pin, drive described two main sound channel loud speakers, these two main sound channel loud speakers are in parallel with described two high pitchs adjusting loud speaker.
With reference to accompanying drawing 5 is the supper bass amplification circuit diagram of the small size television set of the utility model band extra bass high power acoustics.The supper bass amplifying circuit adopts the TDA7265 amplifying circuit of ST, and this TDA7265 amplifying circuit comprises L, R amplifying circuit, and the L amplifying circuit comprises an amplifier, and this amplifier input terminal is connected with an electric capacity, and the other end connects described supper bass and regulates loud speaker; The R amplifying circuit comprises an amplifier, and this amplifier input terminal is connected with an electric capacity, and the other end connects described supper bass and regulates loud speaker.Supper bass signal through amplifying from pin two-10 and 4-8 output, directly drives left and right sides loud speaker RL (L) and RL (R) respectively.
On the carriage of TV, lay a block length bar printed board, this has supper bass power circuit and supper bass power amplification circuit above printed board.The fixed form of supper bass platelet rationally, correctly is fixed on the carriage, and mechanical experiment is qualified.Draw the 220V alternating voltage to this sound accompaniment printed board on TV SKD, the supper bass power supply adopts fairchild STR-G9656, exports the direct-current power supply sound accompaniment power amplification circuit TDA7265 work of 38V from the inferior utmost point of switch transformer and uses.Voice signal and mute signal all draw on TV SKD in the past.Sound amplifies the back and is received on the Super Bass Loudspeaker Enclosure by a quad.Audio amplifier is stuck on the structure above the bonnet on television rear cover, can take away.Big bottom audio amplifier not when not needing supper bass.
Four loud speakers are arranged in TV: two main loudspeakers are respectively left and right acoustic channels, then respectively through occur frequently high pitched signal and receiving on the high pitch loudspeaker of the nonpolarity electrochemical capacitor branch of two 50V-2.2UF.The supper bass signal is directly inputted on the supper bass plate for the small-signal of sound accompaniment treatment circuit output.
Claims (9)
1, a kind of television set with extra bass high power acoustics, comprise sound equipment part and power amplifying part, described sound portion branch comprises sound demodulation circuit, sound accompaniment treatment circuit, it is characterized in that also comprising that two supper bass are regulated loud speaker, two high pitchs are regulated loud speaker and two main sound channel loud speakers, link with described power amplifying part, described power amplifying part comprises the supper bass amplifying circuit, high pitch amplifying circuit and main sound channel amplifying circuit; The audio signal of described television set is after the demodulation of described sound demodulation circuit, be input to described sound accompaniment treatment circuit, described audio signal after treatment, left and right sound track signals is input to after described main sound channel amplifying circuit carries out power amplification, is input to described two main sound channel loud speakers; High pitched signal is input to after described high pitch amplifying circuit carries out power amplification, is input to described two high pitch loudspeakers; The supper bass signal is input to after described supper bass amplifying circuit carries out power amplification, is input to described two subwoofers.
2, the television set of band extra bass high power acoustics according to claim 1 is characterized in that, its sound accompaniment treatment circuit uses the TA1343N of Toshiba sound accompaniment treatment circuit; The audio signal of left and right acoustic channels is input to 6 and 8 pin of TA1343N sound accompaniment processing integrated circuit, and 16,13 pin of TA1343N sound accompaniment processing integrated circuit are exported the sound of L, two main sound channels of R respectively; The 12 pin output supper bass signal of TA1343N sound accompaniment processing integrated circuit, I
2The data wire SDA of C control bus and clock line SCL are connected 24,23 pin of TA1343N sound accompaniment processing integrated circuit respectively.
3, the television set of band extra bass high power acoustics according to claim 1, it is characterized in that, described power amplifying part adopts TDA7297 audio power amplifier circuit, TDA7297 audio power amplifier circuit is after under the 16V voltage of 3 and 13 pin amplifying input audio signal, drive described two main sound channel loud speakers at 1-2 and 14-15 output left and right sound track signals, these two main sound channel loud speakers are in parallel with described two high pitchs adjusting loud speaker.
4, the television set of band extra bass high power acoustics according to claim 3 is characterized in that, described TDA7297 audio power amplifier circuit comprises L, R sound signal amplifying circuit.
5, the television set of band extra bass high power acoustics according to claim 4, it is characterized in that, described L sound signal amplifying circuit comprises two amplifiers, the positive pole of this amplifier links by a resistance, negative pole links by another resistance, described amplifier in is connected with electric capacity, and output is connected with described main sound channel loud speaker.
6, the television set of band extra bass high power acoustics according to claim 3, it is characterized in that, described R sound signal amplifying circuit comprises two amplifiers, the positive pole of this amplifier links by a resistance, negative pole links by another resistance, described amplifier in is connected with electric capacity, and output is connected with described main sound channel loud speaker.
7, the television set of band extra bass high power acoustics according to claim 1, it is characterized in that, the supper bass amplifying circuit of described power amplifying part adopts the TDA7265 amplifying circuit of ST, this TDA7265 amplifying circuit comprises L, R amplifying circuit, the L amplifying circuit comprises an amplifier, this amplifier input terminal is connected with an electric capacity, and the other end connects described supper bass and regulates loud speaker; The R amplifying circuit comprises an amplifier, and this amplifier input terminal is connected with an electric capacity, and the other end connects described supper bass and regulates loud speaker.
8, the television set of band extra bass high power acoustics according to claim 1, it is characterized in that, also comprise a rectangular galley and a motherboard, be equipped with supper bass power supply and supper bass power amplification circuit on this galley, described motherboard is equipped with switching mode power supply transformer, and the direct-current power supply sound accompaniment power amplification circuit TDA7265 work of the inferior utmost point output 38V of switch transformer is used.
9, the television set of band extra bass high power acoustics according to claim 1 is characterized in that, described subwoofer is connected in above the television rear cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520108942 CN2807653Y (en) | 2005-06-09 | 2005-06-09 | TV set with supper bass high power sound equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520108942 CN2807653Y (en) | 2005-06-09 | 2005-06-09 | TV set with supper bass high power sound equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2807653Y true CN2807653Y (en) | 2006-08-16 |
Family
ID=36921947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520108942 Expired - Fee Related CN2807653Y (en) | 2005-06-09 | 2005-06-09 | TV set with supper bass high power sound equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2807653Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1867050B (en) * | 2005-05-16 | 2010-09-22 | 海尔集团公司 | TV set with extra bass high power acoustics |
| CN103702047A (en) * | 2013-12-13 | 2014-04-02 | 乐视致新电子科技（天津）有限公司 | Audio conversion device and television system |
| CN109788401A (en) * | 2018-02-10 | 2019-05-21 | 中山市悦辰电子实业有限公司 | A kind of stereo set and its audio signal transmission circuit |
-
2005
- 2005-06-09 CN CN 200520108942 patent/CN2807653Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1867050B (en) * | 2005-05-16 | 2010-09-22 | 海尔集团公司 | TV set with extra bass high power acoustics |
| CN103702047A (en) * | 2013-12-13 | 2014-04-02 | 乐视致新电子科技（天津）有限公司 | Audio conversion device and television system |
| CN109788401A (en) * | 2018-02-10 | 2019-05-21 | 中山市悦辰电子实业有限公司 | A kind of stereo set and its audio signal transmission circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060816 Termination date: 20100609 |