CN201813349U - Family cinema audio power amplifier - Google Patents
Family cinema audio power amplifier Download PDFInfo
- Publication number
- CN201813349U CN201813349U CN2009202375656U CN200920237565U CN201813349U CN 201813349 U CN201813349 U CN 201813349U CN 2009202375656 U CN2009202375656 U CN 2009202375656U CN 200920237565 U CN200920237565 U CN 200920237565U CN 201813349 U CN201813349 U CN 201813349U
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- CN
- China
- Prior art keywords
- power amplifier
- audio
- circuit
- computer
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Amplifiers (AREA)
- Stereophonic System (AREA)
Abstract
The utility model discloses a family cinema audio power amplifier which comprises a universal serial bus (USB) connecting port connected with a computer, a sound box connecting end connected with a sound box, a decoding module and a power amplification module. For the structure, as the family cinema audio power amplifier is provided with a Sony/Philips digital interface format (SPDIF) signal output circuit, a digital signal processor (DSP) decoding circuit and a power amplification circuit, digital signals of the computer picked up by a USB can be converted into multichannel signals, the power is amplified by the power amplification module and then the sound box is driven to play, so that the standard 5.1-9.1 sound effect can be realized; and simultaneously, the circuits are integrated on a circuit board, so that the cost is greatly reduced.
Description
Technical field
The utility model belongs to a kind of power amplifier, particularly relates to the home theater audio-frequency power amplifier.
Technical background
In the prior art, generally be by DVD player as source of sound, the sound system of standard 5.1-9.1 is realized in decoding back in conjunction with satellite audio amplifier and woofer.Other has a kind of reality is that computer is made source of sound with method, and the audio transmission line of telling more than 6 by the independent sound card of specialty connects audio-frequency power amplifier, in conjunction with the sound system of satellite audio amplifier and woofer realization 5.1-9.1.
It is to play by computer that considerable video file is arranged, but the use of independent sound card is only limited to a minority of fan's level, makes to have only the user of common computer to be difficult to experience standard 5.1-9.1 acoustics.
In sum, develop a kind of application common computer and just can experience the acoustic device of standard 5.1-9.1, become the urgent technical barrier that solves of each manufacturer in the industry.
The utility model content
At the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of home theater audio-frequency power amplifier, under simple and reasonable prerequisite, realizes standard 5.1-9.1 acoustics very easily on common computer.
To achieve these goals, the utility model adopts following technical scheme:
A kind of home theater audio-frequency power amplifier, it comprises a usb connecting port that is connected with computer, an audio amplifier link that is connected with audio amplifier also includes a decoder module, and a power amplifier module.
The utility model can also carry out decision design by the following technical programs:
Described decoder module comprises SPDIF signal output apparatus, DSP decoding circuit.
The incoming end of described SPDIF signal output apparatus is connected with the usb connecting port output, and its output is connected with the DSP decoding circuit.
Described power amplifier module comprises a power amplification circuit.
Described decoder module and described power amplifier module all are integrated on the circuit board.
The home theater audio-frequency power amplifier that the utility model is set forth, its beneficial effect is, this structure is by being provided with SPDIF signal output apparatus, DSP decoding circuit, power amplification circuit, the digital signal that USB can be picked up computer changes into multi-channel signal, carry out power amplification by power amplifier module, promote audio amplifier and play, realize standard 5.1-9.1 acoustics; Simultaneously, foregoing circuit all is integrated on the circuit board, thereby degree reduces cost greatly.
Below in conjunction with accompanying drawing the utility model is described further.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of home theater audio-frequency power amplifier, comprise a usb connecting port that is connected with computer, and audio amplifier link that is connected with audio amplifier, also include a surface-mounted integrated circuit, be integrated with decoder module and power amplifier module on the surface-mounted integrated circuit, wherein decoder module comprises SPDIF signal output apparatus and DSP decoding circuit, power amplifier module comprises a power amplification circuit, the incoming end of SPDIF signal output apparatus is connected with the usb connecting port output, and it goes out end and is connected with the DSP decoding circuit; Decoder module and described power amplifier module all are integrated on the machine and are integrated on the circuit board, just are integrated on the machine.
Again as shown in Figure 1, above-mentioned usb connecting port is connected with the computer USB port, in order to pick up the digital signal of computer, by SPDIF signal output apparatus output SPDIF signal, be transferred to the DSP decoding circuit again and decode, the multi-channel signal of outputting standard carries out power amplification by power amplification circuit then, promote audio amplifier and carry out voice playing, realize the at utmost reduction real scene audio of standard 5.1-9.1 surround sound.
[0018] for a person skilled in the art; can be according to technical scheme described above and design; make other various corresponding changes and distortion, and these all changes and distortion should belong within the protection range of the utility model claim all.
Claims (5)
1. home theater audio-frequency power amplifier, it comprises a usb connecting port that is connected with computer, an audio amplifier link that is connected with audio amplifier is characterized in that, also includes a decoder module, and a power amplifier module.
2. home theater audio-frequency power amplifier as claimed in claim 1 is characterized in that, described decoder module comprises SPDIF signal output apparatus, DSP decoding circuit.
3. home theater audio-frequency power amplifier as claimed in claim 2 is characterized in that, the incoming end of described SPDIF signal output apparatus is connected with the usb connecting port output, and its output is connected with the DSP decoding circuit.
4. home theater audio-frequency power amplifier as claimed in claim 3 is characterized in that, described power amplifier module comprises a power amplification circuit.
5. home theater audio-frequency power amplifier as claimed in claim 4 is characterized in that, described decoder module and described power amplifier module all are integrated on the machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202375656U CN201813349U (en) | 2009-10-20 | 2009-10-20 | Family cinema audio power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202375656U CN201813349U (en) | 2009-10-20 | 2009-10-20 | Family cinema audio power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201813349U true CN201813349U (en) | 2011-04-27 |
Family
ID=43896285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202375656U Expired - Fee Related CN201813349U (en) | 2009-10-20 | 2009-10-20 | Family cinema audio power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201813349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113290A (en) * | 2013-04-22 | 2014-10-22 | 恩平市奥新电子科技有限公司 | Professional power amplifier with DSP (digital signal processor) digital speaker processor |
-
2009
- 2009-10-20 CN CN2009202375656U patent/CN201813349U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113290A (en) * | 2013-04-22 | 2014-10-22 | 恩平市奥新电子科技有限公司 | Professional power amplifier with DSP (digital signal processor) digital speaker processor |
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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: 20110427 Termination date: 20131020 |