I am wanting to use an LM317 variable voltage regulator in current limiter setup.
I understand fully how to wire it up, that part is quite simple.
However, even after much searching with Google, I have failed to find a page that would describe is "dummy terms" how to calculate the resistor value.
Can someone provide a simple explanation how to determine the resistor value?
Id like an example for 12v input, and 5v input, I *think* the R value changes depending on the input voltage(?).
I am wanting to drop current to 30ma (.03a) and 1a, two different applications.
Id rather have an explanation so I can learn, rather than just the R value given to solve the problem.
Many thanks,
Andrew