Coupling interfaces for communication transceivers over power lines

摘要

A coupling interface couples a transceiver to one or more capacitive voltage dividers of a power transmission system. The coupling interface includes a first signal path including an adjustable inductance configured to form a resonance circuit with a capacitance associated with the one or more capacitive voltage dividers. The coupling interface may include a second signal path including an adjustable inductance configured to form a resonance circuit with the capacitance associated with the one or more capacitive voltage dividers.

主权项

1. A coupling interface, comprising:
a first terminal configured to couple to an intermediate node of a capacitive voltage divider, the capacitive voltage divider being coupled between a power line and a ground; a second terminal; a third terminal configured to couple to a communication device; a first set of one or more adjustable inductors configured to form a resonance circuit with a capacitance of the capacitive divider across the first and second terminals at one or more communication frequencies; and a first coupling circuitry configured to couple between the one or more adjustable inductors and the third terminal.