Patent ID: 7161458

Claim:
A multi-port electromagnetic device, comprising: a first magnetic core having a first closed flux path; a second magnetic core having a second closed flux path, said first closed flux path being independent from the second closed flux path; at least one first winding that electromagnetically couples the first magnetic core to the second magnetic core; at least one second winding that electromagnetically couples the first magnetic core to the second magnetic core independent of the electromagnetic coupling of the at least one first winding such that current application in one of the first or second windings does not induce a magnetic flux in the other one of the first or second windings at least one third winding that electromagnetically couples the first magnetic core to the second magnetic core, said at least one third winding being electromagnetically coupled to the at least one first winding; and at least one fourth winding that electromagnetically couples the first magnetic core to the second magnetic core, said at least one fourth winding being electromagnetically coupled to the at least one second winding.