I am learning Control Theory and i have a confusion about whether the following PID controllers are interchangeable or similar.
- Are they equivalent? Why?
- Is there any difference in how i would implement both of them in code? I have to program this in Arduino.
Here is the first control loop which is the normal definition of a PID controller:
And here is the changed one with the negative feedback changed to positive and the setpoint changed from positive to negative.