Broadband over power lines (BPL) coupling system

Details Broadband over power lines (BPL) coupling system Broadband over power lines (BPL) coupling system

2006-01-31

2009-02-17

Mai, Anh T (Department: 2832)

Inductor devices

With outer casing or housing

Internal inductor support

C336S175000, C336S176000

Reexamination Certificate

active

07492245

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.

REFERENCES:
patent: 4983932 (1991-01-01), Kitagawa
patent: 6160466 (2000-12-01), Kawai
patent: 6259346 (2001-07-01), Nakano
patent: 6512425 (2003-01-01), Morita et al.
patent: 6515230 (2003-02-01), Hirakawa et al.
patent: 6559748 (2003-05-01), Nakano
patent: 7012496 (2006-03-01), Sugiura et al.

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