Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Hi:
I know this is off the pcb topic but I was wondering if anyone on this list knew how to design transformers or where to look to find this information out. I am trying to build a 500 watt 100khz switching power supply that will bring 12volts to 60 volts. I understand the concept of turns ratio but my question is how do I treat the primary of the transformer? Do I treat it as merely an inductor whose value I would need to calculate? I was also wondering about the magnetic selection of a core. How much permeability can I have before I saturate the core using a given power level?
Thanks!
-=Randy Knutson




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