US 12,422,115 B2
Lighting device with battery backup
Michael Hanley, Lawrenceville, GA (US); and Bradley Dobbs, Villa Rica, GA (US)
Assigned to ABL IP Holding, LLC, Atlanta, GA (US)
Filed by ABL IP Holding, LLC, Conyers, GA (US)
Filed on Nov. 14, 2023, as Appl. No. 18/389,514.
Prior Publication US 2025/0155096 A1, May 15, 2025
Int. Cl. F21S 9/02 (2006.01); G08B 5/36 (2006.01); G08B 7/06 (2006.01); G09F 13/04 (2006.01); H02J 7/00 (2006.01); H02J 9/06 (2006.01); H05B 47/17 (2020.01)
CPC F21S 9/022 (2013.01) [G08B 5/36 (2013.01); G08B 7/062 (2013.01); G09F 13/0418 (2021.05); H02J 7/0068 (2013.01); H02J 9/065 (2013.01); H05B 47/17 (2020.01); G09F 2013/05 (2021.05)] 18 Claims
OG exemplary drawing
 
1. A lighting device controller within a lighting device, the lighting device controller receiving a higher voltage, alternating current (AC) power signal and providing a low voltage, low power signal to illuminate a lighted sign coupled to the lighting device controller, the lighting device controller comprising:
a power supply for transforming the higher voltage, AC power signal into the low voltage, low power signal;
control circuitry coupled to the power supply, the control circuitry detecting whether AC power is received within the lighting device controller, the control circuitry transmitting the low voltage, low power signal to the lighted sign when AC power is detected;
a switch coupled to the control circuitry, the switch including a AC only position and a battery backup position; and
a battery coupled to the control circuitry, the battery receiving a charging power signal from the control circuitry when the switch is set to the battery backup position, wherein:
the control circuitry transmits a battery control signal to the battery when the control circuitry detects no AC power received in the lighting device controller and determines that the switch is set to the battery backup position, and the battery transmits the low voltage, low power signal to the lighted sign when receiving the battery control signal from the control circuitry; and
the battery is disconnected and cannot receive a charging control signal from the control circuitry when the switch is set to the AC only position.