AC or DC input (ultra-wide input)to DC output SMPS circuit design ?

Dear ST team,

I want to design an SMPS circuit with the following specifications:

* Input can be either 33-265 VAC or 48-375 VDC (ultra-wide input)

* Multiple DC outputs

1.output : 24V with 0.7 A

2.output : +10V with 0.8 A

1.output : -10V with 0.8 A

1.output : 5V with 0.5 A

1.output : 3.3V with 1 A

* Output power (40-100W)

.

How to design an isolated power supply circuit with the specifications above ?

How can I make the transformer calculations according to this circuit? Is there any softwares to do that ? Please guide us

sincerely,

Zaim.

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