So I was thinking about using an smps I have for a project but its not regulated. Is there any reason I couldn't put a voltage regulator like a lm317 after the smps?
Of course, you can put linear regulator after SMPS. Most 3C products have this design, e.g. every motherboard is powered by SMPS, and it still has linear regulators to power other chips.
DJ, I asked for some specifics because you should remember that the LM317 requires a voltage drop of its own, 2-3 volts at best. Maybe a LDO regulator is a better choice. But generally speaking there's nothing to prevent use of a linear, buck or boost regulator to modify your SMPS output.
sofaspud I am acutally thinking about doing something a little crazy and using this SMPS to make an amp from some parts I have laying around. AFAIK the SMPS isn't regulated. If i get around to building the amp, i want to see if adding a regulator improves performance.
That SMPS is about as unsuitable as a PSU could get for any non tube amp and is not suited at all for having an LM317 put after it, that SMPS gives off 280V DC on it's primary output rail!
