System and Method of Two-Wire Control of Multiple Luminaries

A system for controlling a plurality of luminaries with a single controller over two wires comprising:

• a driver module containing a controller that receives commands over a network;
• said driver module also containing a pulse generation circuit that generates and applies cyclic pulses to a two-wire output port, wherein, the controller can adjust the amplitude of said cyclic pulses dynamically on a pulse by pulse basis;
• at least one luminary with a two-wire input attached to the two-wire output of the driver module, the luminary containing a plurality of LED strings, each with a different color temperature, and a plurality of voltage filters, wherein each LED string has an associated voltage filter that accepts a particular pulse amplitude window to turn on that LED string;
• wherein, the driver selects a particular LED string by supplying a pulse to the voltage filter associated with the particular LED string whose amplitude falls within the particular pulse amplitude window of the voltage filter associated with the particular LED string;
• wherein, the driver controls average bulb color temperature by selecting different LED strings within the bulb cyclically on a time-percentage basis to produce a desired average bulb color temperature.