We get +360Vdc from a pfc-output and this +360Vdc is used also for other
purposes besides generating +36V/10A. Max. power taken from +360Vdc pfc output
is about 1800W(dutucycle 1/8), constant power <500W.
Do you have some reference designs for these controllers in this power class.
The closest reference design for the PFC is our ADP1048 eval board. Please find
the documentation attached. For the 380 to 36, I also attached the closest we
have. Especially the UG320 is very close to your requirement. It is stepping
down 400V to 12V at 25A.