US 7,502,950 B1
Dual power supply switching system operating in parallel for providing power to a plurality of LED display modules
Jason L. Brands, Brookings, S. Dak. (US)
Assigned to Daktronics, Inc., Brookings, S. Dak. (US)
Filed on Apr. 26, 2006, as Appl. No. 11/411,512.
Int. Cl. G06F 1/00 (2006.01); G06F 11/00 (2006.01); G06F 11/30 (2006.01); G05F 5/00 (2006.01)
U.S. Cl. 713—300  [714/100; 714/14; 714/22; 713/340; 345/211; 323/234; 323/299] 1 Claim
OG exemplary drawing
 
1. A dual power supply switching system, comprising:
a. dual functioning power supplies, each being utilized in parallel fashion as a power source for a plurality of LED display modules and each also providing power for operation of and in association with other included components;
b. a self-contained microcontroller within each LED display module of the plurality of LED display modules which monitors the input line voltage as supplied by the power supplies;
c. solid state switches with reverse current protection within each LED display module of the plurality of LED display modules connected to the input lines at the LED display modules and controlled by the microcontroller; and,
d. an adjustable switching regulator within each LED display module of the plurality of LED display modules connected to the solid state switches and controlled by the microcontroller for regulated connection of one solid state switch to supply operating voltage for operation of one or more LEDs of an LED display module.