power supply variable with lm338


Posted on Feb 5, 2014

This lm338-v. 1power supply will be able to give something like two times 12- 36 volt and 2x5 amps (10 amps in the v. 2 of this PSU witch includes transistors to get more current from the circuit). I use 2 x lm338 in V. 1 but also lm317 can be used. I will use extra transistors to get the current up i V. 2. Schematic will beequippedwith currentlimitad


power supply variable with lm338
Click here to download the full size of the above Circuit.

justablein steps, a current limiter with LED indicator, and i will try to find some way to make areset ablerelay, thanautomaticallydisableoutputwhen short circuit or to high current drawn, Also i have some temperature sensible switches so power supply will shutdown at to high temperature on the cooling plates.




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