Home » MCQs » Control Systems MCQs

What is/are the advantage(s) of phase lag?

152. What is/are the advantage(s) of phase lag?

1. Reducing steady-state error improves system performance at a steady state.
2. Noise at high frequencies is suppressed by it.
3. Providing high gain at lower frequencies, it acts as a low-pass filter.
4. All of the above

Answer: D) All of the above

Explanation:

The advantages of phase lag are -

1. Reducing steady-state error improves system performance at a steady state.
2. Noise at high frequencies is suppressed by it.
3. Providing high gain at lower frequencies, it acts as a low-pass filter.