LED lighting system with battery for demand management and emergency lighting
摘要
說明書
Returning to the first set of states, where AC mains power is available, we first address the state where the master controller derives all LED driving power from the AC mains, and there is no draw from the energy storage device 3108, 3208 (State 1:1). Here the master controller instructs the first controller 3010 to control the voltage regulator 3006 to maintain a bus voltage, V3, that is greater than a voltage needed to keep the one or more LEDs lit (e.g., for 12V LEDs, V3>12V). The master controller also instructs the second controller 3012 to control the current regulator 3008 to convert the bus voltage, V3, into a maximum regulated LED current, ILED, as allowed by any dimming signals (not shown). These instructions can be sent via the bus 3060 to the controller 3012 and from there to the controller 3010 where data passage along data channels 3036, 3034, and passage through the non-contact transmission device 3014 can be considered to also be on the bus 3060.
