Circuit and method for driving light sources and lighting system

A lighting system comprising:

• a plurality of light sources grouped into a plurality of light source sets;
• a current generator configured for powering said light source sets with a current;
• and
• a driver circuit, wherein the driver circuit comprises:
• a plurality of inductive elements;
• a plurality of switches adapted to selectively connect each light source set in series with one of said inductive elements;
• and
• a control circuit configured for driving said plurality of switches, so that
• a) during a first operation time interval, each light source set is connected in series with a respective first inductive element, and
• b) during a second operation time interval, each light source set is connected in series with a respective second inductive element, wherein the respective second inductive element is separate from the respective first inductive element.

A method of driving a plurality of light sources via a current generator, wherein said light sources are grouped into a plurality of light source sets, the method comprising the steps of:

• providing a plurality of inductive elements;
• providing a plurality of switches adapted to selectively connect each light source set in series with one of said inductive elements;
• and
• driving said plurality of switches, so that
• a) during a first operation time interval, each light source set is connected in series with a respective first inductive element, and
• b) during a second operation time interval, each light source set is connected in series with a respective second inductive element, wherein the respective second inductive element is separate from the respective first inductive element.