High current inductive coupler and current transformer for...

Details High current inductive coupler and current transformer for... High current inductive coupler and current transformer for...

2006-06-13

2006-06-13

Hofsass, Jeffery (Department: 2636)

Communications: electrical

Systems

Selsyn type

C340S315000, C340S315000, C340S315000, C323S222000, C363S021010

Reexamination Certificate

active

07061370

ABSTRACT:
There is provided an inductive power line data coupler. The coupler includes (a) a magnetic core having a high magnetic permeability at a data communication frequency and being configured to allow a power line of a power distribution system to be routed through the magnetic core to serve as a primary winding, (b) a data signaling circuit that provides a secondary winding through the magnetic core for coupling a data signal between the power line and a communication device, and (c) a choke coil coupled to the data signaling circuit for creating a flux-canceling power frequency current opposite in direction and comparable in magnitude to a power frequency current. The coupler may also include a circuit for sensing a level of current in the power line.

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European Search Report dated Mar. 30, 2005.

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