3phase AC to DC power supply

Dear All,
I want to design a power supply with 3 phase input to get 2.5A DC.
Please share your ideas or guide me with block diagrams.

Thanks in advance!

What voltage input and output are you working with?

2.5 A would normally be provided from a single phase supply. Why are you using 3 phase?

Like Driver300 said, however 3 phase gives higher dc than input AC while single phase gives less also 3 phase gives less ripple and in full wave you will not need large electrolytic capacitor, so it is better for high voltage but for low voltages, it will cost more on the transformer.
attaches is the general idea of 3phase half and full wave, hope that what you need

Big problem here: 2.5 Amps at 13 kV; 3 phase would be useful. Then if the input was 1V, 1 A, we would have a problem.

So, 3 phases of apples. So, we have 3 people (phases) throwing 2..5 Apples?

Not enough information. e.g. 3 phase 208 VAC 60 Hz (70 A socket) to 24 V, 2A DC. No neutral is available.