30 min
Intermediate
Article / Blog
Theory
Link to External Site
Understanding what the proportional, integral, and derivative terms do within the PID controller is essential to choose appropriate action, trouble shoot controllers, chose appropriate modifications, or set up advanced controllers. Unfortunately, the controller synthesis approaches, in which PID magically appears within Laplace Transform analysis, does not provide that functional understanding. Hopefully, this more intuitive, yet mathematically grounded, development of PID will be helpful.