- Published in issue 9/1999 on page 14
Digital PID controller:
closing the loop with a PIC
The term ‘PID controller’ normally brings to mind an analogue controller circuit with a couple of opamps. This article shows how such a controller can be implemented in digital form. In this universal controller circuit, based on a PIC and a D/A converter, all control parameters can be entered via a keyboard to adapt the controller to the task at hand.