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Something like this for pre regulation:
My thought was it would help spread the heat, and MOSFET might run cooler.
Anyway, the LM338 will not give rated amps if the input is too far outside the
final target voltage. I can bypass the pre regulator with a switch for the higher voltages,
say...
I've been working for weeks/months on a simple bench supply. I've learned quite a few things that don't work, and better ideas, constantly starting over, bread-boarding, etc. What I want to accomplish is a simple linear bench supply with current and voltage regulaton, <30v, <7A. Once I have...
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