DEVICE AND METHOD FOR CONTROLLABLY DIMMING OUTPUT OF LOAD

摘要

A device configured for electrical connection with a load to control an output of the load. The device includes circuitry for varying a conduction angle of an input AC supply voltage applied to the load, a current scanner for scanning at least one current form flowing through the toad in response to the varying conduction angle of the input AC supply voltage applied to the load, and, a digital signal processing unit electrically coupled to the current scanner and the circuitry. The digital signal processing unit is configured for identifying an operational load type of the load by reference to a pattern indicative of a relationship between the scanned at least one current form and the varying conduction angle of the input AC supply voltage. The digital signal processing unit is further configured for applying at least one of a plurality of predetermined operational modes to control the output of the load based upon the identified operational load type of the load.