| CPC H05B 47/165 (2020.01) [F21S 4/22 (2016.01); F21V 23/003 (2013.01); H05B 45/10 (2020.01); F21Y 2103/10 (2016.08); F21Y 2115/10 (2016.08)] | 10 Claims |
|
1. A light emitting diode (LED) string control system, comprising:
an LED string, comprising a plurality of LED modules, and
a control module, coupled to the LED modules, and configured to provide a control signal to control the LED modules to generate lighting behavior based on a light command,
wherein the light command is composed of a plurality of first digital logics and a plurality of second digital logics in a specific sequence; the control module respectively provides a plurality of first voltage levels and a plurality of second voltage levels to form the control signal based on the first digital logics and the second digital logics of the light command,
wherein when the light command comprises the first digital logics and the second digital logics interlaced to each other, the control module directly adjusts the voltage level of the control signal from the first voltage level to the second voltage level or from the second voltage level to the first voltage level based on the interlaced sequence,
wherein when the light command comprises consecutive first digital logics, the control module adjusts a voltage level of the control signal from the first voltage level to the second voltage level as a distinction voltage level for distinguishing two consecutive first voltage levels;
when the light command comprises consecutive second digital logics, the control module adjusts the voltage level of the control signal from the second voltage level to the first voltage level as the distinction voltage level for distinguishing two consecutive second voltage levels,
wherein the distinction voltage has a first time width, the first voltage level has a second time width, and the second voltage level has a third time width; the first time width is different from the second time width and the third time width.
|