ELECTICAL DEVICE AND METHOD FOR COMPENSATING AN EFFECT OF AN ELECTRICAL CURRENT OF A LOAD, IN PARTICULAR AN LED UNIT, AND DRIVER DEVICE FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT

摘要

Electrical device (30) for compensating an effect of an electrical current (1_L) of a load (14; 34), in particular an LED unit having one or more LEDs, when the load is supplied via a phase cut dimmer, which is normally conceived for traditional filament lamps. The electrical device comprising a connection element (66) for electrically connecting the electrical device (30) to an external power source (12) providing a supply voltage (V 10) for powering the load (14;34), a monitoring device (46; 52) for monitoring the electrical current (1_L) of the load (14;34) during a first time interval (Toff), and a signal controller (62, 64) connected to the connection element (66) for providing an electrical compensation signal (13) to the connection element (66) during a second time interval (T_IR, T_DC) on the basis of the electrical current (1_L) monitored by the monitoring device (46; 52).