CPC H05B 45/46 (2020.01) [H05B 45/10 (2020.01); H05B 45/20 (2020.01)] | 12 Claims |
1. 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, 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, at least two LED strings within the bulb have different color temperatures, and the driver controls average bulb color temperature by selecting LED strings within the bulb cyclically on a time-percentage basis to produce a desired average bulb color temperature.
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