CN208227289U - A kind of power control device - Google Patents
A kind of power control device Download PDFInfo
- Publication number
- CN208227289U CN208227289U CN201820666486.6U CN201820666486U CN208227289U CN 208227289 U CN208227289 U CN 208227289U CN 201820666486 U CN201820666486 U CN 201820666486U CN 208227289 U CN208227289 U CN 208227289U
- Authority
- CN
- China
- Prior art keywords
- power supply
- output end
- input terminal
- power amplifier
- switching power
- 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.)
- Active
Links
Landscapes
- Amplifiers (AREA)
Abstract
The utility model relates to a kind of power control devices, including power amplifier and loudspeaker, the channel signal input terminal of the input terminal connection speaker of the power amplifier, the output end of power amplifier connects loudspeaker, it further include voltage detecting circuit, Switching Power Supply and DSP control module, the input terminal of the voltage detecting circuit and the output end of power amplifier and the output end of Switching Power Supply are separately connected, the output end of voltage detecting circuit and the input terminal of DSP control module connect, the output end of DSP control module and the input terminal of Switching Power Supply connect, the output end of Switching Power Supply and the driving end of power amplifier connect.The power control device of the utility model greatly improves the effective of Switching Power Supply and uses power, reduce the cost of electronic component, Switching Power Supply is increased to the moment ability to bear of heavy load, improves power supply transient state expressive force to reach, the stability and reliability of speaker get a promotion.
Description
Technical field
The utility model relates to the technical fields of power amplification sound box, are concretely a kind of power control devices.
Background technique
With the continuous improvement of living standards, people require the sound quality of speaker higher and higher, and sound quality is mainly by power amplifier electricity
Source influences, existing Switching Power Supply it is impossible to meet the high request instantly to sound quality expressive force, can not according to the variation of load and
When adjust power, and the utilization efficiency of Switching Power Supply is extremely low, causes certain wasting of resources.
Utility model content
For overcome the deficiencies in the prior art, the purpose of the utility model is to provide a kind of power control device, solutions
Certainly existing Switching Power Supply can not high efficiency utilize the technical issues of.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
The input terminal of a kind of power control device, including power amplifier and loudspeaker, the power amplifier connects
The channel signal input terminal of speaker is connect, the output end of power amplifier connects loudspeaker, further includes voltage detecting circuit, switch electricity
Source and DSP control module, the output of the input terminal of the voltage detecting circuit and the output end of power amplifier and Switching Power Supply
End is separately connected, and the output end of voltage detecting circuit and the input terminal of DSP control module connect, the output end of DSP control module
It is connect with the input terminal of Switching Power Supply, the output end of Switching Power Supply and the driving end of power amplifier connect.
It further, further include accessory power supply, the input terminal of the accessory power supply and the output end of DSP control module connect,
The output end of accessory power supply and the driving end of power amplifier connect.
It further, further include rectification circuit, the input terminal of the rectification circuit connects alternating current, and the output end of rectification circuit connects
Connect the driving end of Switching Power Supply.
The beneficial effects of the utility model are: the power control device of the utility model greatly improves switch electricity
The effective of source uses power, reduces the cost of electronic component, increases Switching Power Supply to the moment ability to bear of heavy load,
Power supply transient state expressive force is improved to reach, the stability and reliability of speaker get a promotion.
Detailed description of the invention
Specific embodiment of the present utility model is further described with reference to the accompanying drawing:
Fig. 1 is the principles of the present invention block diagram.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, practical to this below in conjunction with attached drawing
Technical solution in new embodiment is clearly and completely described, it is clear that described embodiment is only the utility model
The embodiment of a part, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The model of the utility model protection all should belong in the every other embodiment obtained without creative efforts
It encloses.
Referring to Fig.1, it a kind of power control device, a kind of power control device, including power amplifier and raises
Sound device, the channel signal input terminal of the input terminal connection speaker of the power amplifier, the channel signal input terminal and electricity of speaker
The output end of source module connection, power amplifier connects loudspeaker, further includes voltage detecting circuit, Switching Power Supply and DSP control
Module, the input terminal of the voltage detecting circuit and the output end of power amplifier and the output end of Switching Power Supply are separately connected,
The output end of voltage detecting circuit and the input terminal of DSP control module connect, the output end of DSP control module and Switching Power Supply
Input terminal connection, the output end of Switching Power Supply and the driving end of power amplifier connect.After signal input, through power amplifier reality
Output is to loudspeaker after now amplifying, and the voltage detecting circuit is separately connected with power amplifier and Switching Power Supply, voltage detecting
The supply voltage that circuit provides power amplifier the voltage and Switching Power Supply that load detects, and will test result and be delivered to
DSP control module, the DSP control module handles testing result, and controls Switching Power Supply, and then described opens
Powered-down source adjusts the power supply power to power amplifier in time.
The utility model further includes accessory power supply, and the input terminal of the accessory power supply and the output end of DSP control module connect
It connects, the output end of accessory power supply and the driving end of power amplifier connect.The accessory power supply breaks down when Switching Power Supply
When, continue Switching Power Supply to the powered operation of power amplifier.The power supply of the accessory power supply is equally by DSP control module control
System.The utility model also further includes auxiliary circuit, and the auxiliary circuit includes display circuit, protects circuit and biasing circuit, auxiliary
Help the overall operation of device.The power supply of the auxiliary circuit is accessory power supply.The accessory power supply is power panel.
The utility model further includes rectification circuit, and the input terminal of the rectification circuit connects alternating current, the output of rectification circuit
Hold the driving end of connection switch power supply.The rectified circuit of alternating current supplies electricity to Switching Power Supply after being rectified.
The implementation process of the utility model is as follows: after signal input, power amplifier amplifies it, and will be after amplification
Signal export to loudspeaker；The utility model is powered power amplifier by Switching Power Supply, voltage detecting circuit pair
Power amplifier provides the voltage of load and the supply voltage of Switching Power Supply is detected, and will test result and be delivered to DSP control
Molding block controls Switching Power Supply, and then the Switching Power Supply is adjusted in time to function after the DSP control module processing
The power supply power of rate amplifier；The utility model further includes accessory power supply, when Switching Power Supply breaks down, is put to power
Big device is powered；The utility model further includes auxiliary circuit, and auxiliary circuit plays the role of the whole more perfect operation of device.
DSP control module not only can control immediately Switching Power Supply voltage power implementation moment, can also be to needed for each auxiliary circuit
Accessory power supply carry out High-speed Control.The power control device of the utility model forms a benign power control
Loop processed comes the purpose of actual power voltage and power required for adjustment loads in time, greatly improves Switching Power Supply
Working efficiency.The utility model can be applied to single channel and multi-channel audio power amplifier and active audio amplifier power amplifier mould
Block.
In conclusion above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although ginseng
The utility model is described in detail according to previous embodiment, those skilled in the art should understand that；It is still
It can modify the technical solutions described in the foregoing embodiments, or equally be replaced to being wherein no lack of technical characteristic
It changes, and these are modified or replaceed, the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (3)
1. a kind of power control device, including power amplifier and loudspeaker, the input terminal connection of the power amplifier
The output end of the channel signal input terminal of speaker, power amplifier connects loudspeaker, it is characterised in that: further includes voltage detecting electricity
Road, Switching Power Supply and DSP control module, the input terminal of the voltage detecting circuit and the output end of power amplifier and switch electricity
The output end in source is separately connected, and the output end of voltage detecting circuit and the input terminal of DSP control module connect, DSP control module
Output end and the input terminal of Switching Power Supply connect, the driving end of the output end of Switching Power Supply and power amplifier connects.
2. a kind of power control device according to claim 1, it is characterised in that: it further include accessory power supply, it is described
The input terminal of accessory power supply and the output end of DSP control module connect, the driving of the output end and power amplifier of accessory power supply
End connection.
3. a kind of power control device according to claim 1, it is characterised in that: it further include rectification circuit, it is described
The input terminal of rectification circuit connects alternating current, the driving end of the output end connection switch power supply of rectification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820666486.6U CN208227289U (en) | 2018-05-04 | 2018-05-04 | A kind of power control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820666486.6U CN208227289U (en) | 2018-05-04 | 2018-05-04 | A kind of power control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208227289U true CN208227289U (en) | 2018-12-11 |
Family
ID=64510063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820666486.6U Active CN208227289U (en) | 2018-05-04 | 2018-05-04 | A kind of power control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208227289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117081514A (en) * | 2023-08-29 | 2023-11-17 | 宁波知音音响设备有限公司 | Power supply system of digital audio power amplifier |
-
2018
- 2018-05-04 CN CN201820666486.6U patent/CN208227289U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117081514A (en) * | 2023-08-29 | 2023-11-17 | 宁波知音音响设备有限公司 | Power supply system of digital audio power amplifier |
| CN117081514B (en) * | 2023-08-29 | 2024-03-22 | 宁波知音音响设备有限公司 | Power supply system of digital audio power amplifier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103888088B (en) | Power amplifier protection system based on ALC | |
| MX2011009476A (en) | Single board energy-saving device, method thereof, and single board. | |
| CN204929213U (en) | Audio signal detects control circuit | |
| CN208227289U (en) | A kind of power control device | |
| CN103477555A (en) | Doherty amplifier with optimised efficiency | |
| CN103458342A (en) | Circuit eliminating shutdown POP sound of audio power amplifier | |
| CN202014197U (en) | USB power source management device and USB loudspeaker system | |
| CN101247115B (en) | Squelch circuit | |
| CN206341205U (en) | Audio switches the pretreatment system of active and standby receiver when transmitting | |
| CN203027014U (en) | Dual-power supply circuit and audio-visual player | |
| CN204408277U (en) | Power amplifier | |
| CN204740524U (en) | Power line carrier communication line driver based on switching power supply constant power control | |
| CN102780401A (en) | Intelligent control circuit and intelligent control method of switch power supply efficiency | |
| CN202815491U (en) | Output circuit with high error-proofing and high driving capability | |
| CN101516050A (en) | Crackle eliminator and sound output system using same | |
| CN201754264U (en) | Computer power monitoring device and computer | |
| CN103095144A (en) | Power supply circuit provided with voltage acceleration compensation | |
| CN106556785A (en) | A kind of hardware circuit of insulation apparatus along face detection means | |
| CN201374679Y (en) | Audio power amplifying circuit electrified from computer port | |
| CN204334498U (en) | A kind of essential safety digital speech power board | |
| CN221127251U (en) | High-performance power amplifier | |
| CN203193615U (en) | TCAS transmitter capable of realizing whisper calling function with lower-power consumption | |
| CN106502296B (en) | D.C. regulated power supply output circuit and method | |
| CN205017088U (en) | Uninterrupted power supply | |
| CN204928129U (en) | A active power filter for post upper band voltage control function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |