Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference (한국조명전기설비학회:학술대회논문집)
- 2007.05a
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- Pages.85-88
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- 2007
Color Temperature Control of LED Floodlight Using RGB Light Color Mixing Theory
-
Kim, Gi-Hoon
(Korea Photonics Technology Institute)
;
-
Song, Sang-Bin
(Korea Photonics Technology Institute)
;
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Cheon, Woo-Young
(Korea Photonics Technology Institute)
;
- Kim, Jin-Hong (Korea Photonics Technology Institute)
- Published : 2007.05.10
Abstract
A number of R, G and B LEDs for reference color temperature mixing ratio of RGB was determined by the theory of RGB mixing as a baseline. Once the number of LEDs was determined the objective color temperature from baseline has been achieved by the control the RGB duty ratio. And a practical prototype of 50W floodlighting adjusted by the above algorithm. The micro controller was developed with control algorithm for RGB duty ratio to obtain the objective color temperature. Detailed experiments to optimize algorithm of duty ratio and color temperature will be discussed in this paper as well.
Keywords