Arjames090686
New Member
Hi All,
I need to build a circuit that would drive a motor based on the error value of an Op-Amp.
I would need to set a reference voltage of lets say 230v (using a potentiometer??). The actual voltage would be the output from a variac (lets say 220v. I would then need the output from the Op-amp circuit to drive a motor (assuming dc) that is connected to the adjustment dial on the variac either clockwise or anticlockwise in order to adjust the output voltage from that device.
Any suggestions on how to do this for an amateur!!
I need to build a circuit that would drive a motor based on the error value of an Op-Amp.
I would need to set a reference voltage of lets say 230v (using a potentiometer??). The actual voltage would be the output from a variac (lets say 220v. I would then need the output from the Op-amp circuit to drive a motor (assuming dc) that is connected to the adjustment dial on the variac either clockwise or anticlockwise in order to adjust the output voltage from that device.
Any suggestions on how to do this for an amateur!!