Power line coupling device and method of using the same
First Claim
1. A power line communications apparatus for communicating data signals over a power line cable carrying a power signal having a voltage greater than one thousand volts, the cable comprising a center conductor, an insulator disposed external the center conductor, and a concentric conductor disposed over a first portion of the power line cable external to the insulator, the apparatus comprising:
- a coupling conductor disposed concentrically around a second portion of the cable external to said insulator and having a first end and a second end, wherein said concentric conductor is absent in a manner to form a gap between the concentric conductor and said first end of said coupling conductor;
a transceiver cable coupled to a first end of said coupling conductor; and
a common mode choke disposed substantially around the entire circumference of a portion of said coupling conductor;
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Accused Products
Abstract
The invention provides a method and a device for communicating a signal over a power line. One embodiment may comprise a length of power cable that comprises a center conductor substantially surrounded by an insulator. A concentric conductor is disposed external to the insulator over a first portion of the cable. A coupling conductor may be disposed concentrically around a second portion of the cable external to said insulator and having a first end and a second end. The concentric conductor is absent in a manner to form a gap between the concentric conductor and the first end of said coupling conductor. A transceiver cable is coupled to the first end of said coupling conductor and a common mode choke may be disposed substantially around the entire circumference of a portion of said coupling conductor. Finally, the second end of the coupling conductor may be coupled to ground through a convenient neutral conductor.
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Citations
31 Claims
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1. A power line communications apparatus for communicating data signals over a power line cable carrying a power signal having a voltage greater than one thousand volts, the cable comprising a center conductor, an insulator disposed external the center conductor, and a concentric conductor disposed over a first portion of the power line cable external to the insulator, the apparatus comprising:
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a coupling conductor disposed concentrically around a second portion of the cable external to said insulator and having a first end and a second end, wherein said concentric conductor is absent in a manner to form a gap between the concentric conductor and said first end of said coupling conductor;
a transceiver cable coupled to a first end of said coupling conductor; and
a common mode choke disposed substantially around the entire circumference of a portion of said coupling conductor;
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A power line communications apparatus for communicating data signals over a power line cable carrying a power signal having a voltage greater than one thousand volts, the cable comprising a center conductor, an insulator disposed external the center conductor, and a concentric conductor disposed over a first portion of the power line cable external to the insulator, the apparatus comprising:
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a coupling conductor disposed concentrically around a second portion of the cable external to said insulator and having a first end and a second end;
a transceiver cable coupled to said first end of said coupling conductor;
a magnetically permeable toroid disposed substantially around the entire circumference of a portion of said coupling conductor; and
wherein said second end of said coupling conductor is communicatively coupled to ground. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of communicating data signals over a power line cable, the cable comprising a center conductor, an insulator disposed external the center conductor, and a concentric conductor disposed over a first portion of the power line cable external to the insulator, the method comprising:
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along a second portion of the cable where the concentric conductor is absent, attaching a coupling conductor around the insulator in a manner to form a gap between a first end of the coupling conductor and the concentric conductor;
positioning a magnetically permeable toroid substantially around the entire circumference of a portion of said coupling conductor; and
communicatively coupling a transceiver to the coupling conductor. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A power line communications apparatus for communicating data signals over a power line cable, the cable comprising a center conductor, an insulator disposed external the center conductor, the apparatus comprising:
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a concentric conductor disposed over the power line cable external to the insulator and substantially around the entire circumference of the power line cable;
wherein said concentric conductor includes a first and second portion spaced apart from each other via a gap;
a magnetically permeable toroid disposed substantially around the entire circumference said first portion of said concentric conductor; and
a transceiver cable coupled to the first portion of the concentric conductor. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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Specification