TRANSMITTING ELECTRICAL POWER AND DATA

摘要

A communication system for transmitting electrical power and data between a first end of a transmission line and a second end of the transmission line comprises, at the first end: a DC supply means for supplying direct current to the transmission line; first switching means for switching the DC supply means; and a first modulator for operating the first switching means. At the second end, the system comprises an energy storage means for storing and supplying DC power; second switching means for switching power from the energy storage means; and a second modulator for operating the second switching means.