bzblues
Full Member level 1
Hello!
I've build a DC Motor speed control with a NPN transistor. It works fine, but the problem is that when I turn the potentiometer up, the motor doesn't start until half way and, to slow down the speed I turn the knob back very slowly, but at certain low speed the motor stops. So, the question is, how can I make the speed control more accurate ? should I solder a resistor to the motor lugs? Or maybe use another kind op potentiometer? I don't need the motor going super fast, actually all the contrary, I would like to it to mantain a certain low speed.
Thank you!
I've build a DC Motor speed control with a NPN transistor. It works fine, but the problem is that when I turn the potentiometer up, the motor doesn't start until half way and, to slow down the speed I turn the knob back very slowly, but at certain low speed the motor stops. So, the question is, how can I make the speed control more accurate ? should I solder a resistor to the motor lugs? Or maybe use another kind op potentiometer? I don't need the motor going super fast, actually all the contrary, I would like to it to mantain a certain low speed.
Thank you!