US Patent No. 9,565,024

CONTROLLER FOR POWER LINE CODING AND POWER LINE CODING METHOD


Patent No. 9,565,024
Issue Date February 07, 2017
Title Controller For Power Line Coding And Power Line Coding Method
Inventorship Willem Peter Van Der Brug, Best (NL)
Assignee PHILIPS LIGHTING HOLDING B.V., Eindhoven (NL)

Claim of US Patent No. 9,565,024

1. A controller for providing amplitude modulated power line coding of an output voltage at an output of the controller, which
output voltage is derived from a mains input voltage supply and comprises a periodic waveform, comprising:
a transformer having a first winding connected in series between the mains input voltage supply and the output;
a sampling and monitoring circuit for sampling and monitoring a voltage of the mains voltage supply before the transformer
and/or for sampling and monitoring the output voltage, the sampling and monitoring circuit having a sampling frequency higher
than the mains frequency;

a switching arrangement for setting the circuit configuration of a second winding of the transformer;
a switch controller for controlling the switching arrangement to provide a change in the output voltage in dependence on the
monitored voltage or voltages and a target output voltage which comprises a voltage which encodes a binary bit of digital
information, such that each half cycle or each full cycle of the output voltage encodes an information bit by means of altering
the output voltage.