I have an application where I have to drive 40 high-power LED's in short pulses using a LED light controller. I got the part after the light controller dimensioned, so now I just need to choose a suitable PSU to supply the light controller. The PSU output voltage has to be in the range of 35-48Vdc and be able to supply around 550W of power within 20us.
I found a couple of 48Vdc 600W PSU's that will meet the first two requirements, but what parameter should I look after to be sure that the PSU can deliver the needed power within just 20us?
Clarification: A single pulse starts with a 20us delay (low), then there is a 300us period where the pulse is high followed by a 19700us delay (low). My main concern is to make sure that the PSU can deliver the power needed immediately after the initial 20us delay.