METHOD FOR DRIVING A PLURALITY OF LIGHT EMITTING DIODES AND DRIVE CIRCUIT

A method and a drive circuit are disclosed. The method includes: based on a plurality of duty cycles (DC(1)-DC(n)) each associated with a respective one of a plurality of LEDs, determining a first set of drive schemes such that each drive scheme is associated with a respective one of the plurality of LEDs (11-1n) and is dependent on the duty cycle (DC(1)-DC(n)) associated with the respective one of the plurality of LEDs (11-1n); and in at least one drive cycle (TPWM), driving each of the plurality of LEDs (11-1n) in accordance with the associated drive scheme of the first set. Each of the plurality of drive schemes includes one or more on-times each having a phase (PH(1)1-PH(n)2) and a duration (T(1)1-T(n)2), driving each of the plurality of LEDs (11-1n) in accordance with the associated drive scheme includes driving each of the plurality of LEDs (11-1n) in an on-state or an off-state dependent on the respective drive scheme, and determining the drive scheme of at least one of the plurality of LEDs (11-1n) includes determining the drive scheme dependent on the drive scheme of another one of the plurality of LEDs