US 2012/0068784 A1 · Coupling Circuits for Power Line Communication Devices

Abstract

Coupling circuits for power line communication (PLC) devices are described. In an embodiment, a PLC device may comprise a processor and a coupling circuit coupled to the processor. The coupling circuit may in turn comprise a transmitter path and a receiver path. In some implementations, the transmitter path may include a first amplifier, a first capacitor coupled to the first amplifier, a first transformer coupled to the first capacitor, and a plurality of line interface coupling circuits coupled to the first transformer, where each of the line interface coupling circuits is configured to be connected to a different phase of an electrical power circuit. Meanwhile, the receiver path may include a plurality of capacitors, where each of the plurality of capacitors coupled to a corresponding one of the line interface circuits, a filter network coupled to the plurality of capacitors, and a second amplifier coupled to the filter network.

Claims20

Dependent claims

A power line communication (PLC) device comprising:

a processor;
and
a coupling circuit coupled to the processor, the coupling circuit comprising:
a transmitter path including:
a first amplifier;
a first capacitor coupled to the first amplifier;
a first transformer coupled to the first capacitor;
and
a plurality of line interface coupling circuits coupled to the first transformer, each of the plurality of line interface coupling circuits configured to be connected to a different phase of an electrical power circuit;
and
a receiver path including:
a plurality of capacitors, each of the plurality of capacitors coupled to a corresponding one of the plurality of line interface circuits;
a filter network coupled to the plurality of capacitors, the filter network including a second transformer;
and
a second amplifier coupled to the filter network.

12 more elements

Dependencies are inferred from the claim text.

Coupling Circuits for Power Line Communication Devices

Life of this patent

Coupling Circuits for Power Line Communication Devices

Life of this patent

Abstract

Claims20