Hi everyone.
I am useless with electrics and I am trying to design a UAV as a final year project. I have so far found that Kokam 1200mah batteries have excellent energy density levels, and have a list of motors to choose from, however I am having difficulty in matching each item, could any body tell me a little about speed controllers!!! I understand some of the workings i.e the pulse voltage regulates the motor speed, but what happens to the current, does this stay at a constant level or does the speed controller adjust this factor with the voltage. I am looking to match a Hacker B20 12L with a combination of kokam 1200 batteries.any suggestions. thankyou for your time[:-]