I would like to design a GaN converter with an output current of 150A. The output is regulated in current (not in voltage). If I am able to increase the frequency, I am able to reduce the size of the transformer without saturating it. Nevertheless I will probably be limited not by the saturation but by the losses into the transformer depending on the material. In any case my problem is not this one. If I want to have 150A at the output, it means that I need a huge cable or PCB trace for passing this current, and I will have the same problem at the primary depending on the number of turns... And it seems that I will not be able to actually reduce significatively the size of the transformer. Did I do a mistake ?
The solution that I can see is probably paralleling 2 converter to have 75A. But the cost will not be the same ...
Do you think that there is a better solution than what I think ?
Have a nice day ?