COMMUNICATION OVER A DC POWER LINE
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United States of America Patent
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Issued Date -
May 13, 2010
app pub date -
Apr 2, 2008
filing date -
Apr 2, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A combined power and communication system, a transmitter, a receiver, and a method of communicating data over a power line are provided. A power supply is arranged to supply an output current to a power line and comprises a current source. The current source is arranged to supply a DC component to the output current and the power supply is further arranged to mod the output current according to a data signal. A load interface is arranged to receive a load at load terminals, to provide DC power from the power line to the load terminals, and to demodulate the current received from the power line to receive the data signal.
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