METHOD FOR WIDE-RANGE CCT TUNING THAT FOLLOWS THE BLACK BODY LINE USING TWO INDEPENDENTLY CONTROLLED CURRENT CHANNELS AND THREE CCTS - Patent 3649833

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EP 3 649 833 A1

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(43)	Date of publication:
	13.05.2020 Bulletin 2020/20

(21)	Application number: 18738426.8

(22)	Date of filing: 29.06.2018

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International Patent Classification (IPC):

H05B 33/08^(2020.01)

(86)	International application number:
	PCT/US2018/040217

(87)	International publication number:
	WO 2019/010074 (10.01.2019 Gazette 2019/02)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME
	Designated Validation States:
	KH MA MD TN

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Priority:

02.07.2017 US 201715640549
28.07.2017 EP 17183711

(71)	Applicant: Lumileds LLC
	San Jose, CA 95131 (US)

(72)	Inventors:
	QIU, Yifeng San Jose, CA 95131 (US) DIANA, Frederic S. San Jose, CA 95131 (US)

(74)	Representative: ter Heegde, Paul Gerard Michel
	Lumileds Germany GmbH Philipsstraße 8 52068 Aachen 52068 Aachen (DE)

(54)	METHOD FOR WIDE-RANGE CCT TUNING THAT FOLLOWS THE BLACK BODY LINE USING TWO INDEPENDENTLY CONTROLLED CURRENT CHANNELS AND THREE CCTS