Patent ID: 8143806

Claim:
A load control device for controlling the amount of power delivered from an AC power source to an electrical load, the load control device comprising: a first controllably conductive device coupled in series electrical connection between the AC power source and the electrical load for controlling the amount of power delivered to the load, the first controllably conductive device having a control input; a sensing circuit operable to provide a control signal representative of a first electrical characteristic of the load control device; and a first controller coupled to the control input of the first controllably conductive device and operable to receive the control signal from the sensing circuit; wherein the load control device is operable to be coupled to a second load control device having a second controllably conductive device, the second controllably conductive device coupled in parallel electrical connection with the first controllably conductive device, the first controller operable to determine when the second controllably conductive device changes between a non-conductive state and a conductive state in response to the control signal from the sensing circuit.