US 11,758,632 B2
System and method of two-wire control of multiple luminaries
Hamid Pishdadian, Warick, RI (US); Thomas A. Spinelli, Staten Island, NY (US); and Akram A. Khalis, Staten Island, NY (US)
Assigned to MHT Lighting, Inc., Staten Island, NY (US)
Filed by Hamid Pishdadian, Warick, RI (US); Thomas A. Spinelli, Staten Island, NY (US); and Akram A. Khalis, Staten Island, NY (US)
Filed on May 17, 2021, as Appl. No. 17/322,516.
Application 17/322,516 is a continuation of application No. 16/799,992, filed on Feb. 25, 2020, granted, now 11,013,085.
Application 16/799,992 is a continuation of application No. 16/103,544, filed on Aug. 14, 2018, granted, now 10,575,379, issued on Feb. 25, 2020.
Prior Publication US 2021/0352788 A1, Nov. 11, 2021
Int. Cl. H05B 45/46 (2020.01); H05B 45/10 (2020.01); H05B 45/20 (2020.01)
CPC H05B 45/46 (2020.01) [H05B 45/10 (2020.01); H05B 45/20 (2020.01)] 12 Claims
OG exemplary drawing
 
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.