Patent ID: 8836448

Claim:
A magnetic interface circuit used for an electrical connector, comprising: a plurality of signal channels, each signal channel having: a transformer having a first winding and a second winding, the first winding having two opposite outputs, the second winding having two outputs and a center tap, and a 3-wire common mode choke having a center winding and two outer windings, the center winding having a first output being connected to the center tap of the second winding and a second output opposite to the first output, the two outer windings being respectively connected to the two outputs of the second winding; a capacitor having a first pole directly connected to the second outputs of the center windings of the plurality of signal channels and an opposite second pole connected to a ground without involvement with a resistor; wherein the outputs of the first windings are connected to a physical side and the outer windings of the 3-wire common mode choke of each of the plurality of signal channels are connected to a cable side; and a second capacitor having a first pole and an opposite second pole, and wherein the first winding of each signal channel has a center tap, the first pole of the second capacitor being directly connected to the center tap of the first winding of each signal channel, the second pole of the second capacitor being directly connected to the ground.