A semi-floating AC/DC active termination circuit with current sink. A voice frequency transmission line termination circuit has at least tip and ring terminals and provides an AC termination impedance and a DC termination resistance. The circuit has at least a first resistance element connected between...http://www.google.fr/patents/US5020102?utm_source=gb-gplus-shareBrevet US5020102 - Semi-floating AC/DC active termination circuit with current sink
Semi-floating AC/DC active termination circuit with current sink
