Method and apparatus for interfacing RF signals to medium voltage power lines
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United States of America Patent
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N/A
Issued Date -
Jan 3, 2002
app pub date -
Apr 19, 2001
filing date -
Apr 19, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
RF digital information signals are interfaced with a medium voltage power line data channel. An interface circuit connects between the medium voltage and low voltage sides of a step-down power transformer. The interface circuit includes a metal oxide arrestor (MOV) and an opto-coupler. The MOV provides the needed capacitance and voltage rating without the bulk of a capacitor having similar capacitance and voltage rating. The opto-coupler provides an added margin of safety for coupling communications data while isolating the medium voltage power from the low voltage side of the transformer.
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