ifugaopapercraft:
I have used the typical LM317 circuithttp://www.ee.buffalo.edu/courses/elab/LM117.pdf with a salvaged, 30v printer power supply. It adjusts voltage but there is absolutely no measureable current. Can't turn a small motor that runs easily on a 9v battery at 53 mV. If I replace this circuit with the current limiting configuration, won't the amp burn components?
If you have built the circuit correctly from the design but end up with an adjustable output voltage but can supply no load current (?) then you have either made an error in building it or have a defective component(s).
Or perhaps you are failing to stay within the voltage/current/heat dissipation limits of the regulator, which will shutdown in some situations to protect it'self.
Can't turn a small motor that runs easily on a 9v battery at 53 mV.
Typically a 9V battery runs at 9 volt, no 53 mV, but that is either not what you meant to write or there is more to the story?
Lefty