EP 1945006 A3 20131204 - LED switching device
Title (en)
LED switching device
Title (de)
Leuchtdioden-Schaltungsanordnung
Title (fr)
Agencement de commutation à diodes luminescentes
Publication
Application
Priority
DE 102007001716 A 20070111
Abstract (en)
[origin: EP1945006A2] The light emitting diode switching device has groups of parallel branches (1 to 6), which are arranged in series. The group has a branch (1) with a light emitting diode (D1) and another branch (2) without light emitting diode. The branches (3 to 6) in the further groups have a light emitting diode (D3 to D6). A controlled power source (Iq1) is arranged in series to the light emitting diode (D1) in the branch (1) of the former group. An independent claim is also included for the method for operating a light emitting diode switching device.
IPC 8 full level
H05B 44/00 (2022.01)
CPC (source: EP)
H05B 45/44 (2020.01)
Citation (search report)
- [A] DE 69709206 T2 20020822 - VALEO ELECTRONIQUE CRETEIL [FR]
- [A] US 2006001381 A1 20060105 - ROBINSON SHANE P [CA], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 1945006 A2 20080716; EP 1945006 A3 20131204; EP 1945006 B1 20150225; DE 102007001716 A1 20080717; DE 102007001716 B4 20151105
DOCDB simple family (application)
EP 08100163 A 20080107; DE 102007001716 A 20070111