EP 4395463 A1 20240703 - AUTOMOTIVE LUMINOUS DEVICE
Title (en)
AUTOMOTIVE LUMINOUS DEVICE
Title (de)
LEUCHTVORRICHTUNG FÜR KRAFTFAHRZEUGE
Title (fr)
DISPOSITIF LUMINEUX AUTOMOBILE
Publication
Application
Priority
EP 23150048 A 20230102
Abstract (en)
The invention provides an automotive luminous device (10) for an automotive vehicle (100). It comprises a buck converter (1) configured to produce a voltage value in the voltage output (5) which is lower than the voltage value received at the voltage input (4). The buck converter (1) is also configured so that the voltage value at the voltage output (5) depends on the voltage value received at the control input (6). It also comprises a temperature compensation circuit (2) comprising a thermistor, the temperature compensation circuit having a circuit input (7) receiving the voltage output from the buck converter (1) and having a circuit output (8) connected to the control input (6) of the buck converter (1). Finally, it also comprises at least one light branch (3) connected in parallel between the voltage output and the ground connection, each light branch comprising at least one solid-state light source (9) and at least one passive component, such as a resistor (12), mounted in series with the at least one solid-state light source (9).
IPC 8 full level
H05B 45/18 (2020.01); H05B 45/375 (2020.01); H05B 45/46 (2020.01)
CPC (source: EP)
H05B 45/18 (2020.01); H05B 45/375 (2020.01); H05B 45/46 (2020.01); H05B 47/28 (2020.01)
Citation (search report)
- [IY] US 6111739 A 20000829 - WU CHEN-HO [US], et al
- [Y] EP 3691414 A1 20200805 - VALEO ILUMINACION SA [ES]
- [Y] US 2006001381 A1 20060105 - ROBINSON SHANE P [CA], et al
- [Y] WO 2016179617 A1 20161117 - ZKW GROUP GMBH [AT]
- [Y] EP 1349434 A2 20031001 - HELLA KG HUECK & CO [DE]
- [A] EP 2432299 A1 20120321 - GROTE INDUSTRIES INC [US]
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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 23150048 A 20230102