converter dc-dc from ferrit

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pol

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I want to make a dc-dc converter from 311v to +75/-75 10 A,from ferrit and what the topology that I use ???
thanks..
 

In case you need a negative voltage (+75,-75), i would prefer flyback topology.
 

Flyback only good for about 100W. Half bridge good for 1KW or more.
 

what about the calculation in ferrit to get it?
 

You can look at Transformer and Inductor Design Handbook - 3rd Edition. Also you can use this website
 

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