This is incredible. There are so many concepts that are coming together in a 10 minute video.

I like it

Hi, Dr. Thanks for such a great video. I have an analog PI controller circuit through which I want to drive past the actuator but my output of the controller becomes saturated. How I could solve this problem? I am new to electronics. Also, I am not sure which output will be better for me in the end. My cut-off frequency is 2KHz. How I should analyze the output? and choose better one.

This kind of circuit is used in feedback class d amps, like icepower. Id a PID not better? faster and more stable in such amps. In a PI the setup of a feedback is such that the fall off from 1 Khz to 20 or 30 Khz is such that at 30 Khz the gain is zero, sometimes in class d I see even more safisticated system with some more complicated plot where the transform as more poles and zero.s.

@ProfessorV.

2 жыл бұрын

For many applications, adding the derivative to attain a full PID control also risks adding instability (oscillations). In your application, derivative action may be beneficial and speed response. PI controllers tend to be better behaved however for things like motor speed control but I have seen the derivative used on tachometer feedback to reduce overshoot. For an OP-AMP circuit, adding a capacitor in series with the input resistor effectively introduces derivative action.

Heyy