Download "EEVblog #221 - Lab Power Supply Design - Part 1"
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PART 2 is HERE: https://www.youtube.com/watch?v=6Otr1I0OR18 Dave shows you how to design a simple constant current and constant voltage lab power supply that can be either software (PIC/AVR et.al microcontroller) or traditional pot controlled. Starting with the venerable LM317, and ending up with an LT3080 solution, and the some thought processes that go into it all. Part 1 is the conceptual design of this Open Hardware design.
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