CN204681637U - LED matrix light source brightness adjustment control power supply - Google Patents
LED matrix light source brightness adjustment control power supply Download PDFInfo
- Publication number
- CN204681637U CN204681637U CN201520309409.1U CN201520309409U CN204681637U CN 204681637 U CN204681637 U CN 204681637U CN 201520309409 U CN201520309409 U CN 201520309409U CN 204681637 U CN204681637 U CN 204681637U
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- CN
- China
- Prior art keywords
- power supply
- constant current
- current controller
- pwm generator
- light source
- 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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A kind of LED matrix light source brightness adjustment control power supply, is made up of Switching Power Supply, multi-channel PWM generator, multiple constant current controller; Switching Power Supply is multi-channel PWM generator, multiple constant current controller provides direct current to input; Multi-channel PWM generator produces phase place, frequency, pwm waveform that duty ratio is all adjustable send into multiple constant current controller; Multiple constant current controller is output multi-channel electric current under the control of multi-channel PWM generator.This control power supply can be used for vertical lighting, street illumination lamp, effectively solves the problem that vertical lighting, street lighting light are uneven.
Description
Technical field
The utility model relates to light source regulation and control power supply, specifically belongs to a kind of LED matrix light source brightness adjustment control power supply.
Background technology
At present along with the development of LED technology, LED rapidly popularizes as lighting, existing LED illumination lamp is single channel power supply current constant control or single channel power supply brightness adjustment control, the electric current that lamp pearls all like this obtains is equal, the brightness of lamp pearl is also equal, the lighting demand of some special industries cannot be realized, such as facade Uniform Illumination, street lamp Uniform Illumination etc.
Utility model content
The purpose of this utility model is to provide a kind of LED matrix light source brightness adjustment control power supply, the effective demand solving special industry facade Uniform Illumination, street lamp Uniform Illumination.
A kind of LED matrix light source brightness adjustment control power supply that the utility model provides, is made up of Switching Power Supply, multi-channel PWM generator, multiple constant current controller; Switching Power Supply is multi-channel PWM generator, multiple constant current controller provides direct current to input; Multi-channel PWM generator produces phase place, frequency, pwm waveform that duty ratio is all adjustable send into multiple constant current controller; Multiple constant current controller under the control of multi-channel PWM generator output multi-channel electric current to LED matrix light source, for the control of every a line LED lamp bead of matrix light source 4.
LED matrix light source brightness adjustment control power supply can be used for the independent control of each line light source of LED matrix light source, to produce different lighting effects.This power supply effectively can solve special industry problem as uneven in vertical lighting, street lighting light.
Accompanying drawing explanation
Fig. 1 LED matrix light source brightness adjustment control power supply architecture and with light source connection diagram
Embodiment
A kind of LED matrix light source brightness adjustment control power supply as shown in Figure 1, comprises Switching Power Supply 1, multi-channel PWM generator 2, multiple constant current controller 3; Switching Power Supply 1, is converted to the DC power supply needed for light fixture by the electric main of 220V, for multi-channel PWM generator 2, multiple constant current controller 3 provide stable direct current input; Multi-channel PWM generator 2 produces all adjustable pwm waveform of phase place, frequency, duty ratio and sends into multiple constant current controller 3, as control signal; Multiple constant current controller 3, produces stable electric current and exports, and its waveform exported, by the control of multi-channel PWM generator 2, ensures that the colour temperature of matrix light source is stablized, current constant.LED matrix light source brightness adjustment control power supply can be used for the control of every a line LED lamp bead of matrix light source 4.
Claims (1)
1. a LED matrix light source brightness adjustment control power supply, is characterized in that, is made up of Switching Power Supply, multi-channel PWM generator, multiple constant current controller; Switching Power Supply is multi-channel PWM generator, multiple constant current controller provides direct current to input; Multi-channel PWM generator produces phase place, frequency, pwm waveform that duty ratio is all adjustable send into multiple constant current controller; Multiple constant current controller is output multi-channel electric current under the control of multi-channel PWM generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520309409.1U CN204681637U (en) | 2015-05-13 | 2015-05-13 | LED matrix light source brightness adjustment control power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520309409.1U CN204681637U (en) | 2015-05-13 | 2015-05-13 | LED matrix light source brightness adjustment control power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204681637U true CN204681637U (en) | 2015-09-30 |
Family
ID=54181301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520309409.1U Expired - Fee Related CN204681637U (en) | 2015-05-13 | 2015-05-13 | LED matrix light source brightness adjustment control power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204681637U (en) |
-
2015
- 2015-05-13 CN CN201520309409.1U patent/CN204681637U/en not_active Expired - Fee Related
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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: 20150930 Termination date: 20190513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |