Hi,
Im trying to build a DC power supply, but cannot find a circuit to suit.
I need variable current limiting, via a pot, voltage control isnt necessary.
Sounds simple, but i need it to handle up to 40V and as much current as reasonable, if i can draw 30 amps i be happy.
I have built a voltage controlled PS, with the above specs, using Lm317 and 4 mj2955, it works ok, but does produce alot of heat. But have been confused a few times on how to make this work with current limiting. PWM?
I can build, but not real flash on designing.