Hi I have added a transistor to the output of a servo controller board to allow me to power a bigger motor from the same board. But i only get control over the motor in one direction not in both,
I have read in the past about audio amplifiers, and that they use two or more transistors in order to produce the negative part of the sound wave as one cant do this,
so am i having the same problem ? is this why i can mak ethe motor go backwards like the original? is there a clever way to fix it with two transistorS?
cheers for any help