Broadband over power lines (BPL) coupling system
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United States of America Patent
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-
Feb 17, 2009
Grant Date -
Aug 2, 2007
app pub date -
Jan 31, 2006
filing date -
Jan 31, 2006
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An inductive coupler provides an interface between a power line and a communication device which communicates via the power line. The power line operates at a potential between four and 140 kilovolts while accommodating a current having a frequency between 45 and 65 hertz, and the communication device operates substantially at ground potential. The inductive coupler includes a split ferrite core having material selected to provide a substantially flat frequency response between one and 50 megahertz. The coupler also includes a clamping mechanism allowing the inductive coupler to clamp around the power line or around a utility line connected to the power line. Further, the coupler includes at least one lead for communicatively connecting the inductive coupler to the communication device. The inductive coupler forms an air gap when the inductive coupler is clamped. If the coupler is insulated, the insulation is also used for the air gap.
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