5.4.2. FPGA-Based PID Controller Example

Try these first

1. 1.

   What does PID stand for?

   Hint

   Think about the three components that help in control.

2. 2.

   What is the purpose of the SETPOINT in a PID controller?

   Hint

   Consider what we want our output to be.

3. 3.

   What does the P in PID represent?

   • Perceptual
   • Proportional
   • Prescriptive

   Hint

   Remember the first term in the acronym.

4. 4.

   Is the Derivative term used to react to past errors?

   • True
   • False

   Hint

   What role does prediction play in control?

5. 5.

   You need to implement a PID controller for a feedback system controlling the speed of a motor. Based on the previous discussions, describe how you would set values for Kp, Ki, and Kd.

   Hint

   Think about how each of these terms impacts speed and stability.

6. 6.

   How does the introduction of delay in the measured signal affect the performance of a PID controller in an FPGA environment?

   Hint

   How do you think timing impacts feedback control?