US 12,010,773 B2
Compact control for lamps in a motor vehicle
Bernd Burchard, Dortmund (DE); and Christian Schmitz, Dortmund (DE)
Assigned to Elmos Semiconductor SE, Dortmund (DE)
Appl. No. 18/044,739
Filed by ELMOS Semiconductor SE, Dortmund (DE)
PCT Filed Sep. 14, 2021, PCT No. PCT/EP2021/075229
§ 371(c)(1), (2) Date Mar. 9, 2023,
PCT Pub. No. WO2022/053714, PCT Pub. Date Mar. 17, 2022.
Claims priority of application No. 10 2020 123 818.5 (DE), filed on Sep. 14, 2020.
Prior Publication US 2023/0380030 A1, Nov. 23, 2023
Int. Cl. H05B 45/30 (2020.01); H05B 47/11 (2020.01); H05B 47/18 (2020.01)
CPC H05B 45/30 (2020.01) [H05B 47/11 (2020.01); H05B 47/18 (2020.01)] 15 Claims
 
1. A device for driving an LED lighting device, comprising:
an input designed as a data interface for connection to a communication data bus,
an output with at least one terminal for at least one LED lamp, the LED lamp comprising an LED or a series circuit of LEDs or a group of differently colored LEDs or a series circuit of groups of respectively differently colored LEDs,
a microcontroller,
one or more LED driver circuits, wherein an LED driver circuit is associated with each terminal of the output for the LED lamp,
wherein the data interface, the microcontroller, and the LED driver circuit or the LED driver circuits comprise electronic and/or electrical circuit elements,
a semiconductor substrate in which the circuit elements of the data interface, the microcontroller and the LED driver circuit or the LED driver circuits are integrated using a semiconductor technology for manufacturing integrated circuits with a smallest possible structure size predetermined by the semiconductor technology,
wherein the semiconductor technology used is determined by what minimum structure size is permissible for the circuit elements of the data interface and the LED driver circuit or the LED driver circuits in order to ensure their functionality,
wherein the data interface and/or the at least one LED driver circuit comprises circuit elements, the structure size of which is equal to the smallest possible structure size determined by the semiconductor technology, and
wherein the microcontroller comprises circuit elements of which those with the smallest structure size have a structure size equal to the structure size of the circuit elements of the data interface and/or the at least one LED driver circuit with the smallest possible structure size determined by the semiconductor technology.