Automatic emergency lighting load control

摘要

An emergency load control device includes a lighting relay that is coupled to a lighting load based on a relay control signal input. Further, the emergency load control device includes an emergency relay that is coupled to an emergency lighting load based on an emergency relay control signal input. Furthermore, the emergency load control device includes a power controller that is coupled to the lighting relay and the emergency relay. The power controller is configured to output the relay control signal input to the lighting relay and the emergency relay control signal input to the emergency relay to control the operation of the lighting load and the emergency lighting load respectively. In addition, the emergency load control device includes a dimmer control circuit coupled to the lighting load and the emergency lighting load. The dimmer control circuit controls dimming of the lighting load and the emergency lighting load.

主权项

1. An automatic emergency load control device, comprising:
a first switch adapted to be coupled to a first lighting load; a second switch adapted to be coupled to a second lighting load; and a power controller coupled to the first switch and the second switch and configured to control the operation of the first lighting load and the second lighting load via the first switch and the second switch, respectively,
wherein when a power from a first power source is uninterrupted, the power controller is configured to control the second lighting load and the first lighting load to operate synchronously, andwherein when the power from the first power source is interrupted, the power controller is configured to switch off the first lighting load and provide the second lighting load with a power from a second power source via the second switch such that the second lighting load switches from a light output level prior to the power interruption from the first power source to full brightness.