(19)
(11) EP 2 150 093 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.04.2012 Bulletin 2012/16

(43) Date of publication A2:
03.02.2010 Bulletin 2010/05

(21) Application number: 09009400.4

(22) Date of filing: 20.07.2009
(51) International Patent Classification (IPC): 
H05B 33/08(2006.01)
(84) Designated Contracting States:
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 SE SI SK SM TR
Designated Extension States:
AL BA RS

(30) Priority: 30.07.2008 EP 08425529

(71) Applicant: Magnaghi, Piero
21030 Castello Cabiaglio (VA) (IT)

(72) Inventor:
  • Magnaghi, Piero
    21030 Castello Cabiaglio (VA) (IT)

(74) Representative: Valentini, Giuliano 
Marietti Gislon e Trupiano S.r.l. Via Larga 16
20122 Milano
20122 Milano (IT)

   


(54) LED lamp and method for operating the same


(57) There is described a light lamp which can be supplied at mains voltage and a method for its operation, wherein the lamp includes at least one LED and at least one PTC thermistor connected in series to the supply line of the LED. The dissipation of heat generated into the lamp is provided to keep the PTC thermistor at a predetermined substantially constant operating temperature.







Search report