Schaltungsanordnung für eine Fahrzeugleuchte

Details

Veröffentlichungs-Nr.

EP4804728

Anmeldetag

3. März 2025

Veröffentlichung

9. September 2026

Rechtsraum

EP

IPC

H05B45/10, H05B45/46

Abstract

The invention relates to a circuit arrangement (1) for a vehicle lamp, comprising a number of N light units, a first electronic switch (5), a second electronic switch (6), a logic circuit (7) and a driver unit (8) that comprises N+1 current regulators, N+1 data registers and a communication interface (17), wherein each light unit (2, 3, 4) comprises a first LED type (21) in a first LED path (23) and a second LED type (22) in a second LED path (24), wherein each light unit (2, 3, 4) is connected to one current regulator (9, 10, 11) providing an individual current (I1, I2, I3) to each light unit (2, 3, 4), wherein a non-conducting conduction state of the first electronic switch (5) interrupts the first LED path (23) and wherein a non-conducting conduction state of the second electronic switch (6) interrupts the second LED path (24), wherein the logic circuit (7) is configured to alternately change on the basis of a control current (Ic) the conduction state of the electronic switches (5, 6), wherein each data register is configured to store data representative of one current (I1, I2, I3, Ic), wherein the data in each of the N+1 data registers (13, 14, 15, 16) is configurable through the communication interface (17). The invention relates further to a vehicle lamp (25) and a vehicle (42).

Anmelder

Firma

ZKW Group GmbH

Land

🇦🇹 Österreich

Fachgebiete