Yo-DUH_87,
I am definitely interested in your results, and the details of your setup. I have good knowledge of electronics, I can also help you, as needed, to complete it (college wasn't a complete waste!).
Specifically, I still have a question about what happens when two PSUs are directly hooked up in parallel: OnDaEdg observed a voltage increase by 0.7v, and I believe that it is due to the coils being effectively put in parallel (but he didn't specify). It may not be an issue once I outfit the PSUs with the SENSE + and -, but I'd like to know.
As for building one's own PSU, it really isn't terribly complicated, until one reaches high power applications, like you do. Typically, PSUs use a voltage regulator to set the voltage to the appropriate level, then let the power transistors handle the current. These transistors can be paralled, for more amperage. The problem of course is that DIY PSUs typically don't provide any kind of failsafes, like output shorts, or over-current.
Let me know, or PM me!
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