Color Control in RGB Driver System Applicable to LED of All Ageing Conditions

S. K. Ng; K. H. Loo; Y. M. Lai; Chi K. Tse

doi:10.1109/IECON.2012.6388684

Color Control in RGB Driver System Applicable to LED of All Ageing Conditions

S. K. Ng^*
, K. H. Loo
, Y. M. Lai
, Chi K. Tse

^*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

2 Citations (Scopus)

Abstract

This paper presents a method of controlling the white color point in red/green/blue (RGB) LED driver system. In contrast to conventional systems where the average driving currents of the primary-color LEDs can become saturated when the LEDs have sufficiently aged, and causes the resulting white color point to go out of regulation, the proposed method avoids this problem by adjusting the color set points when a predefined threshold current is reached by one or more of the primary-color LEDs. It is shown that the method can effectively maintain the white color point of the RGB LED at the desired value when the LEDs are subjected to an accelerated ageing through repetitive current stress cycles. © 2012 IEEE.

Original language	English
Title of host publication	Proceedings, IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society
Pages	2186-2191
ISBN (Electronic)	9781467324205
DOIs	https://doi.org/10.1109/IECON.2012.6388684
Publication status	Published - Oct 2012
Externally published	Yes
Event	38th Annual Conference on IEEE Industrial Electronics Society (IECON 2012) - Montreal, Canada Duration: 25 Oct 2012 → 28 Oct 2012 https://ieeexplore.ieee.org/xpl/conhome/6373889/proceeding

Publication series

Name	IECON Proceedings (Industrial Electronics Conference)
ISSN (Print)	1553-572X

Conference

Conference	38th Annual Conference on IEEE Industrial Electronics Society (IECON 2012)
Abbreviated title	IEEE-IECON2012
Place	Canada
City	Montreal
Period	25/10/12 → 28/10/12
Internet address	https://ieeexplore.ieee.org/xpl/conhome/6373889/proceeding

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@inproceedings{6998c2cc20ea45388fe88a8e0794d35a,

title = "Color Control in RGB Driver System Applicable to LED of All Ageing Conditions",

abstract = "This paper presents a method of controlling the white color point in red/green/blue (RGB) LED driver system. In contrast to conventional systems where the average driving currents of the primary-color LEDs can become saturated when the LEDs have sufficiently aged, and causes the resulting white color point to go out of regulation, the proposed method avoids this problem by adjusting the color set points when a predefined threshold current is reached by one or more of the primary-color LEDs. It is shown that the method can effectively maintain the white color point of the RGB LED at the desired value when the LEDs are subjected to an accelerated ageing through repetitive current stress cycles. {\textcopyright} 2012 IEEE.",

author = "Ng, \{S. K.\} and Loo, \{K. H.\} and Lai, \{Y. M.\} and Tse, \{Chi K.\}",

year = "2012",

month = oct,

doi = "10.1109/IECON.2012.6388684",

language = "English",

isbn = "9781467324212",

series = "IECON Proceedings (Industrial Electronics Conference)",

pages = "2186--2191",

booktitle = "Proceedings, IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society",

note = "38th Annual Conference on IEEE Industrial Electronics Society (IECON 2012), IEEE-IECON2012 ; Conference date: 25-10-2012 Through 28-10-2012",

url = "https://ieeexplore.ieee.org/xpl/conhome/6373889/proceeding",

}

Ng, SK, Loo, KH, Lai, YM & Tse, CK 2012, Color Control in RGB Driver System Applicable to LED of All Ageing Conditions. in Proceedings, IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society., 6388684, IECON Proceedings (Industrial Electronics Conference), pp. 2186-2191, 38th Annual Conference on IEEE Industrial Electronics Society (IECON 2012), Montreal, Quebec, Canada, 25/10/12. https://doi.org/10.1109/IECON.2012.6388684

Color Control in RGB Driver System Applicable to LED of All Ageing Conditions. / Ng, S. K.; Loo, K. H.; Lai, Y. M. et al.
Proceedings, IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society. 2012. p. 2186-2191 6388684 (IECON Proceedings (Industrial Electronics Conference)).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - Color Control in RGB Driver System Applicable to LED of All Ageing Conditions

AU - Ng, S. K.

AU - Loo, K. H.

AU - Lai, Y. M.

AU - Tse, Chi K.

PY - 2012/10

Y1 - 2012/10

N2 - This paper presents a method of controlling the white color point in red/green/blue (RGB) LED driver system. In contrast to conventional systems where the average driving currents of the primary-color LEDs can become saturated when the LEDs have sufficiently aged, and causes the resulting white color point to go out of regulation, the proposed method avoids this problem by adjusting the color set points when a predefined threshold current is reached by one or more of the primary-color LEDs. It is shown that the method can effectively maintain the white color point of the RGB LED at the desired value when the LEDs are subjected to an accelerated ageing through repetitive current stress cycles. © 2012 IEEE.

AB - This paper presents a method of controlling the white color point in red/green/blue (RGB) LED driver system. In contrast to conventional systems where the average driving currents of the primary-color LEDs can become saturated when the LEDs have sufficiently aged, and causes the resulting white color point to go out of regulation, the proposed method avoids this problem by adjusting the color set points when a predefined threshold current is reached by one or more of the primary-color LEDs. It is shown that the method can effectively maintain the white color point of the RGB LED at the desired value when the LEDs are subjected to an accelerated ageing through repetitive current stress cycles. © 2012 IEEE.

UR - https://www.scopus.com/pages/publications/84872898282

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84872898282&origin=recordpage

U2 - 10.1109/IECON.2012.6388684

DO - 10.1109/IECON.2012.6388684

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 9781467324212

SN - 9781467324199

T3 - IECON Proceedings (Industrial Electronics Conference)

SP - 2186

EP - 2191

BT - Proceedings, IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society

T2 - 38th Annual Conference on IEEE Industrial Electronics Society (IECON 2012)

Y2 - 25 October 2012 through 28 October 2012

ER -

Color Control in RGB Driver System Applicable to LED of All Ageing Conditions

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