Patent ID: 8869383

Claim:
A method for making a magnetics assembly, comprising the steps of: (1) providing first to eighth magnetic wires, each of the magnetic wires having a first end and a second end in a same order; (2) providing a toroidal magnetic core having a central opening, a top face, and a bottom face; (3) winding the first to eighth of the magnetic wires around the magnetic core in one direction with the first end extending out from the central opening through the top face of the magnetic core and the second end extending out from the central opening through the bottom face of the magnetic core; (4) picking out the second ends of the first wire and the second wire and the first ends of the third wire and the fourth wire to form a centre tap of a primary coil of a transformer, the first ends of the first wire and the second wire to form an input of the primary coil, and the second ends of the third wire and the fourth wire to form an output of the primary coil; (5) picking out the second ends of the fifth wire and the sixth wire and the first ends of the seventh wire and the eighth wire to form a centre tap of a secondary coil of the transformer, the first ends of the fifth wire and the sixth wire to form an input of the secondary coil, and the second ends of the seventh wire and the eighth wire to form an output of the secondary coil; (6) twisting the wire ends of the centre taps, the inputs, and the outputs of the primary coil and the secondary coil, respectively; and (7) intercrossing the centre taps of the primary coil and the secondary coil after the step of twisting.