CN204244100U - A kind of power circuit for active audio amplifier power amplifier - Google Patents
A kind of power circuit for active audio amplifier power amplifier Download PDFInfo
- Publication number
- CN204244100U CN204244100U CN201420678001.7U CN201420678001U CN204244100U CN 204244100 U CN204244100 U CN 204244100U CN 201420678001 U CN201420678001 U CN 201420678001U CN 204244100 U CN204244100 U CN 204244100U
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- CN
- China
- Prior art keywords
- electric capacity
- power
- fuse
- amplifier
- rectifier
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of power circuit for active audio amplifier power amplifier, comprise AC power, transformer, push-button switch, rectifier, three-terminal regulator block, first fuse, second fuse, resistance, first electric capacity, second electric capacity, 3rd electric capacity, 4th electric capacity, 5th electric capacity, 6th electric capacity, 7th electric capacity, 8th electric capacity, 9th electric capacity, first voltage output end mouth and the second voltage output end mouth, the utility model utilizes the filtering characteristic of electric capacity, the various High-frequency Interference that filtering AC power seals in, jumbo electric capacity can reduce AC power internal resistance, suppress ripple, with the moment operating characteristic providing active audio amplifier power amplifier excellent, prevent large-signal and send ripple distortion, and circuit structure is simple, element is few, strong interference immunity, working stability, be conducive to universal and promote.
Description
Technical field
The utility model relates to a kind of active audio amplifier interior power supply circuit, particularly relates to a kind of power circuit for active audio amplifier power amplifier.
Background technology
Active audio amplifier is also called " active audio amplifier ", typically refer to the audio amplifier of band power amplifier, as multimedia computer audio amplifier, active super low voice box, and some novel home theater active audio amplifiers etc., active audio amplifier is due to built-in power amplifier, user need not consider the problem of mating with amplifier, also be convenient to more low level audio signal Direct driver simultaneously, but, circuit construction of electric power much for active audio amplifier power amplifier is complicated, element is many, cost is low, anti-interference is poor, job insecurity, is difficult to universal and promotes.
Utility model content
The purpose of this utility model is just to provide a kind of power circuit for active audio amplifier power amplifier to solve the problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The utility model comprises AC power, transformer, push-button switch, rectifier, three-terminal regulator block, first fuse, second fuse, resistance, first electric capacity, second electric capacity, 3rd electric capacity, 4th electric capacity, 5th electric capacity, 6th electric capacity, 7th electric capacity, 8th electric capacity, 9th electric capacity, first voltage output end mouth and the second voltage output end mouth, the first end of described AC power connects the first end of described second fuse, second end of described second fuse connects the first end of the primary coil of described transformer, second end of the primary coil of described transformer connects the first end of described first fuse, second end of described first fuse connects the first end of described push-button switch, second end of described push-button switch connects the second end of described AC power, the first end of the secondary coil of described transformer simultaneously with the first ac voltage input of described rectifier, the first end of described 3rd electric capacity is connected with the first end of described second electric capacity, the second end of the secondary coil of described transformer simultaneously with the second ac voltage input of described rectifier, the first end of described first electric capacity is connected with the first end of described 4th electric capacity, and the positive pole of described rectifier is connected with described second end of the 3rd electric capacity and the first end of described resistance simultaneously, with the second end of described 4th electric capacity while of the second end of described resistance, the first end of described 5th electric capacity, the first end of described 6th electric capacity, the first end of described 7th electric capacity, the input of described three-terminal regulator block is connected with described second voltage output end mouth, the output of described three-terminal regulator block simultaneously with the first end of described 8th electric capacity, the first end of described 9th electric capacity is connected with described first voltage output end mouth, the second end of described 9th electric capacity simultaneously with the second end of described 8th electric capacity, second end of described 7th electric capacity, second end of described 6th electric capacity, second end of described 5th electric capacity, second end of described second electric capacity, second end of described first electric capacity and the minus earth of described rectifier.
The beneficial effects of the utility model are:
The utility model utilizes the filtering characteristic of electric capacity, the various High-frequency Interference that filtering AC power seals in, jumbo electric capacity can reduce AC power internal resistance, suppress ripple, with the moment operating characteristic providing active audio amplifier power amplifier excellent, prevent large-signal and send ripple distortion, and circuit structure is simple, element is few, strong interference immunity, working stability, be conducive to universal and promote.
Accompanying drawing explanation
Fig. 1 is circuit structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1: the utility model comprises AC power AC, transformer T, push-button switch SB, rectifier BR, three-terminal regulator block U, first fuse FU1, second fuse FU2, resistance R, first electric capacity C1, second electric capacity C2, 3rd electric capacity C3, 4th electric capacity C4, 5th electric capacity C5, 6th electric capacity C6, 7th electric capacity C7, 8th electric capacity C8, 9th electric capacity C9, first voltage output end mouth Vo1 and the second voltage output end mouth Vo2, the first end of AC power AC connects the first end of the second fuse FU2, the first end of the primary coil of the second end connection transformer T of the second fuse FU2, second end of the primary coil of transformer T connects the first end of the first fuse FU1, second end of the first fuse FU1 connects the first end of push-button switch SB, second end of push-button switch SB connects second end of AC power AC, the first end of the secondary coil of transformer T simultaneously with first ac voltage input of rectifier BR, the first end of the 3rd electric capacity C3 is connected with the first end of the second electric capacity C2, the second end of the secondary coil of transformer T simultaneously with second ac voltage input of rectifier BR, the first end of the first electric capacity C1 is connected with the first end of the 4th electric capacity C4, and the positive pole of rectifier BR is connected with second end of the 3rd electric capacity C3 and the first end of resistance R simultaneously, with second end of the 4th electric capacity C4 while of second end of resistance R, the first end of the 5th electric capacity C5, the first end of the 6th electric capacity C6, the first end of the 7th electric capacity C7, the input of three-terminal regulator block U is connected with the second voltage output end mouth Vo2, the output of three-terminal regulator block U simultaneously with the first end of the 8th electric capacity C8, the first end of the 9th electric capacity C9 is connected with the first voltage output end mouth Vo1, second end of the 9th electric capacity C9 simultaneously with second end of the 8th electric capacity C8, second end of the 7th electric capacity C7, second end of the 6th electric capacity C6, second end of the 5th electric capacity C5, second end of the second electric capacity C2, second end of the first electric capacity C1 and the minus earth of rectifier BR.
Operation principle of the present utility model:
As shown in Figure 1: the first electric capacity C1 of the present utility model to the 4th electric capacity C4 can the various High-frequency Interference that seal in of filtering AC power AC, jumbo 5th electric capacity C5 and the 6th electric capacity C6 can reduce the internal resistance of AC power AC, 7th electric capacity C7 also can reduce the high frequency internal resistance of AC power AC, suppress ripple, prevent large-signal and send ripple distortion.
Claims (1)
1. for a power circuit for active audio amplifier power amplifier, it is characterized in that: comprise AC power, transformer, push-button switch, rectifier, three-terminal regulator block, first fuse, second fuse, resistance, first electric capacity, second electric capacity, 3rd electric capacity, 4th electric capacity, 5th electric capacity, 6th electric capacity, 7th electric capacity, 8th electric capacity, 9th electric capacity, first voltage output end mouth and the second voltage output end mouth, the first end of described AC power connects the first end of described second fuse, second end of described second fuse connects the first end of the primary coil of described transformer, second end of the primary coil of described transformer connects the first end of described first fuse, second end of described first fuse connects the first end of described push-button switch, second end of described push-button switch connects the second end of described AC power, the first end of the secondary coil of described transformer simultaneously with the first ac voltage input of described rectifier, the first end of described 3rd electric capacity is connected with the first end of described second electric capacity, the second end of the secondary coil of described transformer simultaneously with the second ac voltage input of described rectifier, the first end of described first electric capacity is connected with the first end of described 4th electric capacity, and the positive pole of described rectifier is connected with described second end of the 3rd electric capacity and the first end of described resistance simultaneously, with the second end of described 4th electric capacity while of the second end of described resistance, the first end of described 5th electric capacity, the first end of described 6th electric capacity, the first end of described 7th electric capacity, the input of described three-terminal regulator block is connected with described second voltage output end mouth, the output of described three-terminal regulator block simultaneously with the first end of described 8th electric capacity, the first end of described 9th electric capacity is connected with described first voltage output end mouth, the second end of described 9th electric capacity simultaneously with the second end of described 8th electric capacity, second end of described 7th electric capacity, second end of described 6th electric capacity, second end of described 5th electric capacity, second end of described second electric capacity, second end of described first electric capacity and the minus earth of described rectifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420678001.7U CN204244100U (en) | 2014-11-13 | 2014-11-13 | A kind of power circuit for active audio amplifier power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420678001.7U CN204244100U (en) | 2014-11-13 | 2014-11-13 | A kind of power circuit for active audio amplifier power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204244100U true CN204244100U (en) | 2015-04-01 |
Family
ID=52773541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420678001.7U Expired - Fee Related CN204244100U (en) | 2014-11-13 | 2014-11-13 | A kind of power circuit for active audio amplifier power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204244100U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286336A (en) * | 2019-07-04 | 2019-09-27 | 北京市速连科通信设备有限责任公司 | A kind of power detector |
-
2014
- 2014-11-13 CN CN201420678001.7U patent/CN204244100U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110286336A (en) * | 2019-07-04 | 2019-09-27 | 北京市速连科通信设备有限责任公司 | A kind of power detector |
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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: 20150401 Termination date: 20151113 |
|
| EXPY | Termination of patent right or utility model |