I think a variable power supply using the LM317 would be awesome. I have a project that uses servos from the Vex robotics kit (I had some lying around), and they require 6v and my Arduino supplies 5v only. I can’t seem to find a small variable power supply that would fit on a breadboard anywhere. I would love to have a kit version of one to use.
ziplock:
I think a variable power supply using the LM317 would be awesome.
An LM317 is an adjustable linear regulator:
Vin >> Vout
ziplock:
I have a project that uses servos…
they require 6v and my Arduino supplies 5v only.
So you either need to lower the 6V to 5V for the
Arduino, or boost the 5V for the servos. Which?
ziplock:
I can’t seem to find a small variable power supply that would fit on a breadboard anywhere.
Really? You haven’t searched enough. Also, why
do you need a variable supply when both the
input and output are known? The LM317 will
not do either 5 to 6V or 6 to 5V due to it’s own
voltage requirements. An LDO (Low Drop Out)
regulator will do 6 to 5V, but 5 to 6V requires
a booster (there are several standard circuit
topologies and many many ICs to do this task).