Patent 7200176 was granted and assigned to Vitesse Semiconductor on April, 2007 by the United States Patent and Trademark Office.
Transformerless ethernet controller. A method for isolating an ethernet controller, having a transceiver associated therewith, from a twisted wire transmission line is provided. The power supply of the transceiver is DC isolated from system power supply. The data side of the ethernet controller is DC isolated from the transceiver for both transmit and receive data. The transceiver is directly connected to the transmission line with no DC isolation.