Lab 2 - Motor Speed Control

24-451 Feedback Controls

Fall 2000


In this lab, you will be using feedback control (both proportional and integral) to control the speed of the motor-tach system from Lab 1. A block diagram showing the closed-loop setup is shown below. Note that this diagram does not give the signs of the summer, or any of the content of the blocks.


This setup is identical to that used in Lab 1 except for the controller closing the feedback loop. This controller is an op-amp circuit set up as an inverting summer/gain. In this lab, you will design a controller gain to meet particular design specifications, such as settling time and steady-state error.

Next - Open Loop Response


Open Loop Response ] Proportional Control ] Positive Feedback ] Writeup ]