Driver arrangement

Abstract

The invention describes a driver arrangement (1) for driving a semiconductor lighting load (2), which driver arrangement (1) comprises a first power converter (10) arranged to drive a portion (2_10, 2_10_11) of the lighting load (2); a second power converter (11) arranged to drive a portion (2_11, 2_10_11) of the lighting load (2); a monitoring arrangement (12) realized to monitor an operating characteristic (12A, 12B, 12C, IR30)° f the second power converter (11); and a control signal generator (13) for generating a control signal (130, Vshunt) for the first power converter (10) on the basis of the monitored operating characteristic (12A, 12B, 12C, IR30). The invention also describes a lighting arrangement (100), which lighting arrangement (100) comprises a semiconductor lighting load (2); and such a driver arrangement (1) for driving the semiconductor lighting load (2). The invention also describes a method of driving a semiconductor lighting load (2).

Dependencies are inferred from the claim text.