(19)
(11) EP 3 935 919 A1

(12)

(43) Date of publication:
12.01.2022 Bulletin 2022/02

(21) Application number: 20715280.2

(22) Date of filing: 11.03.2020
(51) International Patent Classification (IPC): 
H05B 33/08(2020.01)
H05B 45/58(2020.01)
 H05B 45/50(2022.01)
(52) Cooperative Patent Classification (CPC):
H05B 45/58; H05B 45/39; H05B 45/50; H05B 45/382
(86) International application number:
PCT/EP2020/056545
(87) International publication number:
WO 2020/187669 (24.09.2020 Gazette 2020/39)
(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

(30) Priority: 19.03.2019 EP 19163603

(71) Applicant: Tridonic GmbH & Co. KG
6851 Dornbirn (AT)

(72) Inventors:
  • SHUKLA, Jagjitpati
    Durham DL16 6DR (GB)
  • MAKWANA, Deepak
    Newcastle Upon Tyne NE5 2DJ (GB)
  • NETZER, Harald
    6710 Nenzing (AT)
  • STARK, Stefan
    6835 Muntlix (AT)

(74) Representative: Rupp, Christian 
Mitscherlich PartmbB Patent- und Rechtsanwälte Sonnenstraße 33
80331 München
80331 München (DE)

   


(54) IMPROVED LED SHORT CIRCUIT AND OPEN LOAD DETECTION WITH A SINGLE CONTROLLER PIN