LED device with voltage-limiting unit and shunt current-limiting resistance

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(11)

EP 2 487 994 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	20.11.2013 Bulletin 2013/47

(43)	Date of publication A2:
	15.08.2012 Bulletin 2012/33

(21)	Application number: 12154768.1

(22)	Date of filing: 09.02.2012

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International Patent Classification (IPC):

H05B 33/08^(2006.01)

(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

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Priority:

11.02.2011 US 201113025296
11.02.2011 US 201113025331

(71)	Applicant: Yang, Tai-Her
	Si-Hu Town Dzan-Hwa (TW)

(72)	Inventor:
	Yang, Tai-Her Si-Hu Town Dzan-Hwa (TW)

(74)	Representative: Wright, Howard Hugh Burnby et al
	Withers & Rogers LLP 4 More London Riverside London SE1 2AU London SE1 2AU (GB)

(54)	LED device with voltage-limiting unit and shunt current-limiting resistance

(57) The present invention provides a LED device with the voltage-limiting unit and the shunt current-limiting resistance wherein a voltage-limiting unit is connected in series with a current-limiting resistance then connected in parallel with two ends of a LED, so that to constitute the light-emitting unit, thereby when plural of the light-emitting units are connected in series (including connected in series and parallel), the current of LED loaded with higher end voltage passing through the voltage-limiting unit is prevented to be overly high when subject to abnormal high voltage.

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