Power line communication interference preventing circuit
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United States of America Patent
Stats
-
Aug 23, 1988
Grant Date -
N/A
app pub date -
Jun 17, 1986
filing date -
Jun 17, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tuned circuit is provided for connection to a transmitter of a power line communication system. The tuned circuit comprises components selected to provide a low impedance path to ground for a power line communication signal of a preselected frequency. When the transmitter is not in the process of transmitting a power line communication signal, it causes a shorting switch to be closed which shorts a secondary winding of a transformer of the tuned circuit. Therefore, during periods of time when the transmitter is not transmitting power line communication signals, spurious signals on the power line are diverted to ground and not permitted to travel to remote receivers connected to the power line distribution system.
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