Patent ID: 7940152

Claim:
A transformer, comprising a plurality of primary windings, including a first primary winding, a second primary winding, a third primary winding, and a fourth primary winding, wherein each of the plurality of primary windings is not directly connected to any other of the plurality of primary windings, wherein each primary winding includes a respective positive port and a negative port for receiving respective differential signals, wherein each primary winding includes a respective first number of turns; and a single secondary winding having a plurality of segments, including a first segment and a second segment, wherein each segment includes a second number of turns, the second number of turns greater than or equal to the respective first number of turns, wherein the single secondary winding includes at least one output port, wherein both the first primary winding and the second primary winding are positioned adjacent to the first segment of the single secondary winding in order to inductively couple the first and second primary windings to the first segment of the single secondary winding, and wherein both the third primary winding and the fourth primary winding are positioned adjacent to the second segment of the single secondary winding in order to inductively couple the third and fourth primary windings to the second segment of the single secondary winding.