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DIGITAL LOAD CONTROL SYSTEM PROVIDING POWER AND COMMUNICATION VIA EXISTING POWER WIRING

  • US 20130181630A1
  • Filed: 01/27/2012
  • Published: 07/18/2013
  • Est. Priority Date: 01/17/2012
  • Status: Active Grant
First Claim
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1. A load control system for controlling an electrical load receiving power from an AC power source, the load control system comprising:

  • a load control device for controlling the electrical load; and

    a controller adapted to be coupled in series electrical connection between the AC power source and the load control device, the controller operable to produce a phase-control voltage is adapted to be received by the load control device;

    wherein the controller is operable to transmit a digital message to the load control device for controlling the load by encoding digital information in timing edges of the phase-control voltage, the phase-control voltage having at least one timing edge in each half-cycle of the AC power source when the controller is transmitting the digital message to the load control device.

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