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A kind of LED light source dimming method and dimming system

A LED light source and dimming technology, applied in the direction of electrical components, etc., can solve the problem that it is difficult to adjust the color temperature and luminous flux of LED white light source according to the requirements

Active Publication Date: 2022-06-21
GUANGZHOU UNIONLUX ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to overcome at least one defect (deficiency) of the above-mentioned prior art, and provides a dimming method and a dimming system for an LED light source, which are used to solve the problem that it is difficult to adjust the color temperature and luminous flux of an LED white light source according to requirements.

Method used

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  • A kind of LED light source dimming method and dimming system
  • A kind of LED light source dimming method and dimming system
  • A kind of LED light source dimming method and dimming system

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Embodiment 1

[0056] This embodiment provides a method for dimming an LED light source, which is used for dimming an LED light source, where the LED light source includes a first color temperature LED light source and a second color temperature LED light source, and the color temperature of the first color temperature LED light source and the second color temperature LED light source The range is different. The first color temperature LED light source and the second color temperature LED light source can respectively use LED chips with different wavelengths and / or LED chips with different primary colors and / or different phosphor formulas and / or different phosphor layer thicknesses, etc., so as to achieve the first The color temperature ranges of the color temperature LED light source and the second LED light source are different.

[0057] The dimming target of this embodiment is the luminous flux Pm that fits the first color temperature LED light source and the second color temperature LED ...

Embodiment 2

[0181] This embodiment provides an LED light source dimming system. The LED light source includes a first color temperature LED light source and a second color temperature LED light source, and the first color temperature LED light source and the second color temperature LED light source have different color temperature ranges.

[0182] Image 6 is the composition diagram of the LED light source dimming system provided in this embodiment, such as Image 6 As shown, it includes a relationship establishment module 21 and a current adjustment module 22:

[0183] a relationship establishing module 21, configured to establish a dimming relationship according to the first relationship, the second relationship and the fitting relationship;

[0184] The first relationship includes the color temperature T of the first color temperature LED light source under the condition that the first color temperature LED light source is powered on alone 1 with current A 1 Relational expression, ...

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Abstract

The invention relates to a dimming method and a dimming system for an LED light source, comprising: establishing a dimming relational expression according to a first relational expression, a second relational expression and a fitting relational expression; the dimming relational expression includes a fitted color temperature T 3 , Fitted luminous flux Pm 3 The current A of the LED light source with the first color temperature under the condition that the LED light source with the first color temperature and the LED light source with the second color temperature are both energized respectively 31 , The current A of the LED light source with the second color temperature 32 According to the relational expression of dimming, adjust the current A of the LED light source with the first color temperature 31 and the current A of the second color temperature LED light source 32 , so that the fitted color temperature T 3 Meet the set color temperature value, and adjust the current A according to the dimming relationship and the required set luminous flux 31 and A 32 Adjust the fitted luminous flux Pm 3 . In the present invention, the luminous flux of the LED light source can be continuously adjusted within a certain range under the condition that the color temperature of the LED light source, the color rendering index Ra and R9 are basically unchanged.

Description

technical field [0001] The present invention relates to the technical field of lighting sources, and more particularly, to a dimming method and a dimming system for an LED light source. Background technique [0002] LED has the characteristics of energy saving, green environmental protection and long life, and is widely used in lighting, backlight display and other fields. However, with the improvement of people's quality of life, the requirements for lighting sources are getting higher and higher, and there are higher requirements for the color rendering index of different brightness in the lighting process. At present, the functions of LED products are becoming more and more diversified and intelligent, but it is difficult to meet this demand for a single light source, while the integrated LED can meet the requirements of different color temperatures, different color rendering indices and different brightness in a single light source. Different color temperature, differen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B45/20
CPCH05B45/20
Inventor 高权李虎杨枢要陈国平
Owner GUANGZHOU UNIONLUX ELECTRONICS TECH CO LTD