Fundamentals Of Control Theory: An Intuitive Ap... Today

A thermostat. It measures the room temperature, compares it to your goal, and adjusts the heater accordingly. This is Feedback Control . 2. The Components of a Loop To understand any control system, visualize this circle:

Your desired state (e.g., "Set speed to 65 mph").

The "eyes" that measure the output and feed it back to the start. 3. PID Control: The "Big Three"