EP 3207767 A1 20170823 - CIRCUIT FOR OPERATING LIGHT-EMITTING DIODES WITH LOW FLICKER, AND LUMINOUS MEANS AND LUMINAIRE
Title (en)
CIRCUIT FOR OPERATING LIGHT-EMITTING DIODES WITH LOW FLICKER, AND LUMINOUS MEANS AND LUMINAIRE
Title (de)
SCHALTUNG ZUM FLACKERARMEN BETREIBEN VON LEUCHTDIODEN, SOWIE LEUCHTMITTEL UND LEUCHTE
Title (fr)
CIRCUIT SERVANT À FAIRE FONCTIONNER SANS SCINTILLEMENTS DES DIODES ÉLECTROLUMINESCENTES AINSI QUE MOYEN D'ÉCLAIRAGE ET APPAREIL D'ÉCLAIRAGE
Publication
Application
Priority
- DE 102014114853 A 20141014
- DE 2015100358 W 20150828
Abstract (en)
[origin: WO2016058585A1] The invention relates to a circuit for operating light-emitting diodes with low flicker, wherein the circuit has n LED chains with a particular ordinal number N, wherein n is an integer and is greater than 1 and N is an integer and is greater than 0, an overall supply voltage connection to which a time-dependent supply voltage, in particular a rectified AC voltage, can be applied, and an LED chain connection, and the LED chain connection is set up in such a manner that the individual LED chains are connected with increasing supply voltage and increasing ordinal number N and are disconnected with falling supply voltage and a falling ordinal number, wherein a current storage source is assigned to the overall supply voltage connection and is set up in such a manner that the current storage source is charged in the case of a supply starting voltage and the current storage source impresses a supply current on one of the LED chains in the case of a supply threshold voltage, with the result that this LED chain is connected.
IPC 8 full level
H05B 33/08 (2006.01); H05B 44/00 (2022.01)
CPC (source: EP US)
H05B 45/48 (2020.01 - EP US)
Citation (search report)
See references of WO 2016058585A1
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)
DE 102014114853 A1 20160414; EP 3207767 A1 20170823; EP 3207767 B1 20190306; WO 2016058585 A1 20160421
DOCDB simple family (application)
DE 102014114853 A 20141014; DE 2015100358 W 20150828; EP 15781860 A 20150828