Patent ID: 7884687
Filing Date: 2011-02-08
Classification: H01F,H04L

Abstract:
1. A magnetic interface circuit, comprising: a transmit channel and a receive channel each comprising a 3-wire common mode choke having a pair of outer taps and a middle tap, and an isolation transformer connected with the 3-wire common mode choke, the isolation transformer having a primary winding and a secondary winding, and wherein said primary winding having a pair of first output taps connected with said outer taps and a first center tap connected with said middle tap, said secondary winding having a pair of second input taps and a second center tap; a first spare channel and a second spare channel; and an absorb network comprising a bridge rectifying circuit adapted for converting an electrical current, the bridge rectifying circuit having a pair of input taps each connected with corresponding second center tap of the isolation transformers, and a pair of output taps, said absorb network further comprising another bridge rectifying circuit having a pair of input taps respectively connected with the first and the second spare channels, and a pair of output taps connected with said pair of output taps of said bridge rectifying circuit in shunt-wound circuit.