CN204707097U - A kind of digital power amplifier based on customizable modular processor - Google Patents
A kind of digital power amplifier based on customizable modular processor Download PDFInfo
- Publication number
- CN204707097U CN204707097U CN201420062565.8U CN201420062565U CN204707097U CN 204707097 U CN204707097 U CN 204707097U CN 201420062565 U CN201420062565 U CN 201420062565U CN 204707097 U CN204707097 U CN 204707097U
- Authority
- CN
- China
- Prior art keywords
- audio
- output
- input
- interface circuit
- circuit
- 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 - Lifetime
Links
- 230000003321 amplification Effects 0.000 claims abstract description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 8
- 230000005236 sound signal Effects 0.000 claims abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000010752 BS 2869 Class D Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Amplifiers (AREA)
Abstract
The utility model discloses a kind of digital power amplifier based on customizable modular processor by audio input interface circuit, customizable modular processor, audio output interface circuit, numeral amplifying circuit and filter circuit composition, it is characterized in that: audio signal connects the input of audio input interface circuit, the output of audio input interface circuit is connected to the input of customizable modular processor, customizable modular processor output is connected with the input of audio output interface circuit, the output of audio output interface circuit is connected with digital input amplifier, numeral amplification circuit output end is connected with filter circuit input, filter circuit output is as the output of power amplifier complete machine, the beneficial effects of the utility model are that the disparate modules by changing customizable modular processor configures the direct amplification and the function treatment that reach digital audio and video signals, simultaneously again can compatible analog signal amplify and flexibly and low cost compared with the audio frequency processing capacity of change power amplifier.
Description
Art
The present invention relates to a kind of audio-frequency power amplifier, especially based on the digital power amplifier of customizable modular processor.
Background technology
Current known digital power amplifier (both class-D amplifier) is made up of analog input interface, PWM circuit, H bridge amplifying circuit and filter etc., there is following imperfection part:
(1) can only amplified analog signal, directly can not amplify digital audio and video signals.
(2) amplification of digital signal will carry out digital-to-analogue conversion repeatedly and analog-to-digital conversion, and cause distortion serious, circuit repeats too much.
(3) function singleness, is difficult to carry out audio frequency process flexibly.
Summary of the invention
For overcoming the deficiency of known technology, the invention provides a kind of digital power amplifier based on customizable modular processor by audio input interface circuit, customizable modular processor, audio output interface circuit, numeral amplifying circuit and filter circuit composition, it is characterized in that: audio signal connects the input of audio input interface circuit, the output of audio input interface circuit is connected to the input of customizable modular processor, customizable modular processor output is connected with audio output interface circuit input end, the output of audio output interface circuit is connected with digital input amplifier, numeral amplification circuit output end is connected with filter circuit input, filter circuit output is as the output of power amplifier complete machine.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of digital power amplifier based on customizable modular processor is made up of audio input interface circuit, customizable modular processor, audio output interface circuit, digital amplifying circuit and filter circuit, wherein by carrying out the customization of required module to customizable modular processor, do not need the direct amplification that digital-to-analogue conversion can realize digital audio and video signals, the same audio processing modules by increasing customizable modular processor can extended audio processing capacity.
The invention has the beneficial effects as follows that the disparate modules configuration by changing customizable modular processor reaches direct amplification and the function treatment of digital audio and video signals, simultaneously again can compatible analog signal amplify and flexibly and low cost compared with the audio frequency processing capacity of change power amplifier.
Below in conjunction with drawings and Examples, the present invention is further described.
Accompanying drawing illustrates:
Fig. 1 is the formation block diagram of the digital power amplifier based on customizable modular processor.
Fig. 2 is the schematic diagram of the digital power amplifier embodiment based on customizable modular processor.
Embodiment:
In Fig. 1, audio signal connects the input of audio input interface circuit (1.1), the output of audio input interface circuit (1.1) is connected to the input of customizable modular processor (1.2), customizable modular processor (1.2) output is connected with audio output interface circuit (1.3) input, the output of audio output interface circuit (1.3) is connected with digital amplifying circuit (1.4) input, numeral amplifying circuit (1.4) output is connected with filter circuit (1.5) input, filter circuit (1.5) output is as the output of power amplifier complete machine.
Fig. 2 is an illustrative examples schematic diagram of the present invention, wherein CMP (1.2) is customizable modular processor, can be realized by various intelligent chip, include but not limited to DSP, CPU, single-chip microcomputer and other embedded technology platforms, the interior circuit of dotted line frame (1.1) forms input interface circuit, in practical application, input interface circuit is not limited to listed kind of interface in embodiment, but minimum should have wherein a kind of interface circuit to be that design is wanted, the interior circuit of dotted line frame (1.3) forms output interface circuit, in practical application, output interface circuit is not limited to listed kind of interface in embodiment, but minimum should have wherein a kind of interface circuit to be that design is wanted, dotted line frame (1.4) interior circuit forms digital amplifying circuit, transistor Qa1, Qa2 ... Qan and transistor Qb1, Qb2 ... Qbn matches use, wherein, n >=1, the interior circuit of dotted line frame (1.5) forms first order LC filter, but be not limited to firstorder filter in actual use, the filter of other types reaches filtering effect of the present invention equally, same in limited range of the present invention.
Key effects of the present invention completes direct amplification to digital audio and video signals by the processing module customizability of customizable modular processor, simply and at low cost configures different audio frequency processing capacities by interface circuit to the compatibility of multiple format audio signal simultaneously.
Claims (1)
1. one kind based on the digital power amplifier of customizable modular processor by audio input interface circuit, customizable modular processor, audio output interface circuit, numeral amplifying circuit and filter circuit composition, it is characterized in that: audio signal connects the input of audio input interface circuit, the output of audio input interface circuit is connected to the input of customizable modular processor, customizable modular processor output is connected with the input of audio output interface circuit, the output of audio output interface circuit is connected with digital input amplifier, numeral amplification circuit output end is connected with filter circuit input, filter circuit output is as the output of power amplifier complete machine, described customizable modular processor comprises DSP or CPU or single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420062565.8U CN204707097U (en) | 2014-02-11 | 2014-02-11 | A kind of digital power amplifier based on customizable modular processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420062565.8U CN204707097U (en) | 2014-02-11 | 2014-02-11 | A kind of digital power amplifier based on customizable modular processor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204707097U true CN204707097U (en) | 2015-10-14 |
Family
ID=54286689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420062565.8U Expired - Lifetime CN204707097U (en) | 2014-02-11 | 2014-02-11 | A kind of digital power amplifier based on customizable modular processor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204707097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836538A (en) * | 2014-02-11 | 2015-08-12 | 闫天时 | Digital power amplifier based on customizable module processor |
-
2014
- 2014-02-11 CN CN201420062565.8U patent/CN204707097U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104836538A (en) * | 2014-02-11 | 2015-08-12 | 闫天时 | Digital power amplifier based on customizable module processor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102611964B (en) | Power amplification circuit and system | |
| JP2017506043A5 (en) | ||
| CN202374223U (en) | Fully digital audio amplification circuit for household active speakers | |
| CN204707097U (en) | A kind of digital power amplifier based on customizable modular processor | |
| CN101834930A (en) | Speaker circuit and terminal of mobile phone | |
| CN204206429U (en) | Audio signal processing | |
| CN104836538A (en) | Digital power amplifier based on customizable module processor | |
| CN204089737U (en) | Realize the high-precision amplifying structure of variable gain | |
| CN101964936B (en) | Processing chip for digital microphone, input circuit thereof and digital microphone | |
| CN205864519U (en) | VOX double MIC calibration optimizes circuit | |
| CN202721728U (en) | Mobile phone and audio amplification output circuit thereof | |
| CN204291348U (en) | The numerical digit analogy Transform Acoustic amplifier of tool Improvement type eqalizing cricuit | |
| CN203225871U (en) | Simplified audio frequency amplification circuit | |
| CN204104105U (en) | A kind of circuit of Earphone Amplifier | |
| CN201557082U (en) | Front circuit connected with digital amplifier | |
| CN201813516U (en) | Processing chip used for digital microphone, input circuit thereof and digital microphone | |
| CN205039785U (en) | Portable instrument's power amplification circuit | |
| CN202818578U (en) | Special active loudspeaker having noise reduction function for reception | |
| CN205039780U (en) | Take dual power supply's dual track audio power amplifier circuit | |
| CN202334448U (en) | Audio operation amplifying circuit structure and audio output circuit structure | |
| CN201854398U (en) | Wireless earphone for foreign language listening teaching | |
| CN202998441U (en) | Sound box power amplification circuit and sound box | |
| CN204616068U (en) | A kind of audio frequency processing circuit and mobile terminal | |
| CN204290906U (en) | Utilize operational amplifier as the filter of voltage follower | |
| CN204948331U (en) | Sound effect processing circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151210 Address after: 518000, Guangdong, Shenzhen, Baoan District sand town ten thousand sand road, Changxin science and technology park 20, 5 Building South Patentee after: SHENZHEN SUOWEI TECHNOLOGY CO.,LTD. Address before: 518000 mailbox 2A-2A, palm Road, manhole Central Road, Baoan, Guangdong, Shenzhen Patentee before: Yan Tianshi Patentee before: Yan Wenge |
|
| DD01 | Delivery of document by public notice |
Addressee: SHENZHEN SUOWEI TECHNOLOGY CO.,LTD. Document name: Notification of Passing Examination on Formalities |
|
| CP02 | Change in the address of a patent holder |
Address after: 518000 a401, Goldman Sachs building, No. 18, Shaqi Community Center Road, Xinqiao street, Bao'an District, Shenzhen, Guangdong Province Patentee after: SHENZHEN SUOWEI TECHNOLOGY CO.,LTD. Address before: 518000 south of floor 5, building 20, Changxing Science Park, shawan'an Road, Shajing Town, Bao'an District, Shenzhen, Guangdong Province Patentee before: SHENZHEN SUOWEI TECHNOLOGY CO.,LTD. |
|
| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20151014 |
|
| CX01 | Expiry of patent term |