LIGHT EMITTING DIODE BACKUP SYSTEMS AND METHODS

摘要

Systems and methods for backing up LEDs are provided. In one embodiment, an LED backup system includes an LED backup controller operable to select from a plurality of power sources to supply electrical energy to a set of LEDs. The plurality of power sources includes a primary power source and a battery. The LED backup controller is adapted to be in selective electrical communication with the primary power source via a first electrical path. The LED backup controller is also adapted to be in electrical communication with the primary power source via a second electrical path. The LED backup controller is operable to select the battery to supply electrical energy to the set of LEDs in response to a failure of the LED backup controller to electrically communicate with the primary power source via the second electrical path.