Iawia
Member
Hi All,
I am trying to build a motor controller and would like some advice. I have a knob (rheostat), that I would like to use as my speed control point.
I am using a PI controller made of op amps, and a power amp to feed the motor. I coupled a feedback motor to the plant motor. Measuring the back emf from the feedback motor will provide me with enough info about the motor's live speed and will feedback into the controller.
my question is: how do I supply a positive and negative voltage using a knob (rheostat) to change directions of the motor?
I am trying to build a motor controller and would like some advice. I have a knob (rheostat), that I would like to use as my speed control point.
I am using a PI controller made of op amps, and a power amp to feed the motor. I coupled a feedback motor to the plant motor. Measuring the back emf from the feedback motor will provide me with enough info about the motor's live speed and will feedback into the controller.
my question is: how do I supply a positive and negative voltage using a knob (rheostat) to change directions of the motor?