US 12,484,122 B2
Control and/or regulating system, circuit arrangement and method for actuating light-emitting diodes (LEDs) in an LED field
Shaham Nemati, Dortmund (DE); Dieter Nietfeld, Paderborn (DE); and Bernd Schulte-Eversum, Geseke (DE)
Assigned to Hella GmbH & Co. KGaA, Lippstadt (DE)
Filed by Hella GmbH & Co. KGaA, Lippstadt (DE)
Filed on Jul. 12, 2023, as Appl. No. 18/351,224.
Application 18/351,224 is a continuation of application No. PCT/EP2022/050312, filed on Jan. 10, 2022.
Prior Publication US 2023/0354489 A1, Nov. 2, 2023
Int. Cl. H05B 45/30 (2020.01); H05B 45/14 (2020.01); H05B 45/46 (2020.01); H05B 45/50 (2022.01)
CPC H05B 45/14 (2020.01) [H05B 45/46 (2020.01); H05B 45/50 (2020.01)] 8 Claims
OG exemplary drawing
 
1. A method for operating a control and/or regulating system for a light emitting diode field, wherein the control and/or regulating system includes at least two first outputs at which control signals for controlling controllable switch elements (S1, S2) of the light emitting diode field are tapped, and includes a second output at which a control and/or regulating signal for controlling and/or regulating a controllable and/or regulatable power source is tapped, and includes at least one first measuring signal input at which sensor signals from at least one first voltage sensor are applied, the method comprising:
measuring a voltage drop across the light emitting diode field via the at least one first voltage sensor;
when the measured voltage drop across the light emitting diode field falls below a designated voltage value, switching off the controllable and/or regulatable power source via the control and/or regulating signal of the control and/or regulating system;
wherein a constant voltage signal via a second voltage sensor is present at a second measuring signal input of the control and/or regulating system, wherein a voltage value of the constant voltage signal is larger than the designated voltage value.