Patent ID: 6949889

Claim:
A driver circuit for at least one light emitting diode device comprising: first and second input nodes, which are adapted to be coupled to a source of AC or DC voltage and to which a load, powered by said source of AC or DC voltage is coupled; an input rectifying diode coupled to said first input node; a controlled current flow element coupled in a first current flow path between said input rectifying diode and said at least one light emitting diode device, and being controllably operative to supply current for illuminating said at least one light emitting diode device; and a controlled current regulation circuit coupled with said controlled current flow element between said first and second nodes and being operative to regulate the amount of current supplied over said first current flow path by said controlled current flow element to said at least one light emitting diode device, and thereby accommodate variations in the value of said source of AC or DC voltage.