Patent ID: 8810154
Filing Date: 2014-08-19
Classification: H05B,Y02B

Abstract:
1. A load control system for controlling the power delivered to an electrical load from an AC power source, the system comprising: a main load control device for controlling the electrical load, the main load control device operable to conduct a load current from the AC power source to the electrical load, the main load control device comprising a receiver for receiving digital messages, such that the main load control device is operable to control the electrical load in response to the received digital messages; and a remote load control device adapted to be coupled in series electrical connection with the main load control device between the AC power source and the electrical load, such that the remote load control device is operable to conduct the load current from the AC power source to the electrical load, the remote load control device comprising a power supply operable to charge from the AC power source through the main load control device during a first time period of a half-cycle of the AC power source, the remote load control device further comprising a transmitter for transmitting digital messages; wherein the transmitter of the remote load control device and the receiver of the main load control device are coupled together such that the transmitter of the remote load control device is operable to transmit at least a portion of a digital message to the receiver of the main load control device during a second time period of the half-cycle.