Device for driving the electrical power supply of light sources of an automotive vehicle

A lighting module for an automotive vehicle comprising at least one light source and a device for providing electrical power to the at least one light source, wherein the device comprises:

• a converter circuit configured to convert a constant direct current (DC) input voltage VIN into a load voltage, which is applied to said at least one circuit branch;
• control means configured to generate a periodic signal S having a frequency f and to provide the periodic signal S to the converter circuit;
• detecting means connected to the input voltage VIN in parallel with the converter circuit and configured to detect a disruption in the input voltage VIN, and to determine a frequency fp of the disruption;
• and
• adapting means configured to modify the frequency f of said periodic signal S according to the determined frequency fp of the disruption.

A lighting module for an automotive vehicle comprising at least one light source and a device for providing electrical power to the at least one light source, wherein the device comprises:

• a converter circuit configured to convert a constant direct current (DC) input voltage VIN into a load voltage, which is applied to said at least one circuit branch;
• control means configured to generate a periodic signal S having a frequency f and to provide the periodic signal S to the converter circuit;
• detecting means connected to the input voltage VIN in parallel with the converter circuit and configured to detect a disruption in the input voltage VIN, and to determine a frequency fp of the disruption;
• comparing means configured to compare the determined frequency fp of the disruption with the frequency f of said periodic signal S;
• and
• adapting means configured to modify the frequency f of said periodic signal S according to the comparison.