Two identical outputs connected in parallel

You dont need to split the windings into 2. Just let PI expert do the transformer for you. It will automatically use parallel windings to make sure that current density in the wire (expressed as CMA) is within limits.

You can manually allocate more than 1 start and termination pin for this transformer if you like through the transformer windings dialog.

as a matter of fact I need to split the windings in two because I have some custom made transformers that are constructed like that. I will try the thing that you suggest with the starts and terminations and see where it takes me. Thanks

Ok my question still remains:
"How can I force PI Expert to use exactly this topology (see image) in the output?"

image: http://i.imgur.com/iKTHsP2.png

how can I force PI Expert to use this topology? (see image)

Define two outputs on the 'multiple outputs screen' in the 'new design wizard' as you have described above.

fi you try to do it as you say then the result is two seperate outputs. I dont want them like that.

I want them like in the image that I give in the link:

http://i.imgur.com/iKTHsP2.png

http://i.imgur.com/iKTHsP2.png

The implementation described in your schematic is essentially 2 outputs that have been connected to a single load; unless you are talking about a single output with two parallel winding in which case you can change the winding number under 'Winding Construction' in PI Expert.

did you try to do it or you just say "it can be done"?

Because I searched the "winding construction"settings and I couldnt manage to achieve this topology.

The thing that I am trying to do is this:
I dont want touse a single winding with 12V/5A but I want to use two output windings of  12V/2,5A so that  I can construct them with thinner wire.

This is what I am trying to do and if possible I want to do it in PI Expert.

Please do not offer me another solution different that the one that I ask :)

thanks again.

You electrical diagram suggests that there are two outputs which are connected in parallel. Since you have not attached a mechanical diagram, it is assumed that you want to achieve a single output from two outputs. I understand that you want to split the number of wires and not the number of outputs; hence, start the design by defining one output and then under Winding Construction-->Secondaries select the winding type as Quadfilar which will allow you to use 4 thinner wires connected in parallel for a single output. Other than this, feel free to experiment with Multiple Outputs/Winding construction to achieve your design.