EP 2624663 A1 20130807 - A LED circuit
Title (en)
A LED circuit
Title (de)
LED-Schaltung
Title (fr)
Circuit DEL
Publication
Application
Priority
NL 2008231 A 20120203
Abstract (en)
The invention relates to a LED circuit, comprising a LED module and a driver circuit for feeding the LED module. The driver circuit has a pair of input terminals forming a line input terminal and a neutral input terminal, respectively, and a pair of output terminals forming input terminals of the LED module. The LED module is provided with a substrate, a heat sink and a multiple number of LED elements connected in series. Further, the LED elements are provided with a corresponding heat pad that is capacitively coupled to the heat sink and to the anode and cathode of the LED elements. The LED circuit according to the invention comprises a shunt circuit bypassing the capacitive coupling between the anode and cathode of the LED elements on the one hand, and the corresponding heat pad on the other hand. The shunt circuit has a low impedance for transient signals.
IPC 8 full level
H05B 44/00 (2022.01); H05K 9/00 (2006.01)
CPC (source: EP US)
H05B 45/54 (2020.01 - EP US); H05B 45/56 (2020.01 - EP US)
Citation (search report)
- [A] US 2010127625 A1 20100527 - MINARCZYK MICHAEL M [US], et al
- [A] EP 2290777 A1 20110302 - NXP BV [NL]
- [A] US 6140585 A 20001031 - COULAND CHARLES [FR]
- [A] US 4621199 A 19861104 - BAILEY CARL J [US]
- [A] CN 201636674 U 20101117 - AIGUO HUANG
- [A] US 2011062871 A1 20110317 - CHEN YUE-ZHI [TW], et al
- [A] US 2011057569 A1 20110310 - WEI YAJUN [US], et al
Designated contracting state (EPC)
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 state (EPC)
BA ME
DOCDB simple family (publication)
EP 2624663 A1 20130807; EP 2624663 B1 20150527; NL 2008231 C2 20130806
DOCDB simple family (application)
EP 13153604 A 20130201; NL 2008231 A 20120203