Many motion applications require high accuracy during and at the completions of moves. Even with perfectly optimized PID (proportional, integral, derivative) values to control position, the ...

Find a downloadable version of this story in pdf format at the end of the story. Type II compensators are widely used in the control loops for power converters. However, there are cases where the ...

Can we improve performance by adding control elements external to the PID loop? Yes. Here we consider torque control and the related subject of torque feedforward — which can make systems run more ...