Power Supply Design Help

[engr_24]

Hi guys, I'm new to power electronics and my professor gave me a project to design and build. It is a SMPS 9V input, 400V output 3A. Anyone who knows how to design this power supply??? I will appreciate your help. Thanks a LOT in advance!!!!:lol:

 

[ZASto]

1.2 kVA from 9V???
In ideal situation it would be 133.333333333 A on 9V side, more realistic 170A.

Ask your prof. does the PS has to run from 9V battery :-D

 

[engr_24]

We are advised to use any input voltage sources.