EP 3033922 A1 20160622 - ELECTRONIC BALLAST FOR OPERATING AT LEAST A FIRST AND A SECOND KASKADE OF LEDS
Title (en)
ELECTRONIC BALLAST FOR OPERATING AT LEAST A FIRST AND A SECOND KASKADE OF LEDS
Title (de)
ELEKTRONISCHES VORSCHALTGERÄT ZUM BETREIBEN MINDESTENS EINER ERSTEN UND EINER ZWEITEN KASKADE VON LEDS
Title (fr)
BALLAST ÉLECTRONIQUE PERMETTANT DE FAIRE FONCTIONNER AU MOINS UNE PREMIÈRE ET UNE SECONDE CASCADE DE LED
Publication
Application
Priority
- DE 102013216153 A 20130814
- EP 2014064827 W 20140710
Abstract (en)
[origin: WO2015022121A1] The invention relates to an electronic ballast (10) for operating at least a first (D101) and a second cascade of LEDs (D117), wherein the first cascade of LEDs (D101) is designed in such a way that the first cascade of LEDs cannot be bridged. In order to provide a target value for a series regulator (Q100) arranged in series with the LED cascades (D101, D117), a resistance voltage divider (R011, R012) is used, which is coupled between the coupling point (N1) of the LED cascade (D101) that cannot be bridged and of the LED cascade (D117) that can be bridged at one end and the second output connection of the rectifier (D002) at the other end.
IPC 8 full level
H05B 44/00 (2022.01)
CPC (source: EP US)
H05B 45/395 (2020.01 - EP US); H05B 45/44 (2020.01 - EP US); H05B 45/50 (2020.01 - EP US); Y02B 20/30 (2013.01 - EP US)
Citation (search report)
See references of WO 2015022121A1
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)
WO 2015022121 A1 20150219; CN 105453700 A 20160330; CN 105453700 B 20171215; DE 102013216153 A1 20150219; EP 3033922 A1 20160622; US 2016183345 A1 20160623; US 9538606 B2 20170103
DOCDB simple family (application)
EP 2014064827 W 20140710; CN 201480044820 A 20140710; DE 102013216153 A 20130814; EP 14736863 A 20140710; US 201414911794 A 20140710