For a stable closed loop system, the gain at phase crossover frequency should always be:
A. < 20 dB
B. < 6 dB
C. > 6 dB
D. > 0 dB
Answer:D
For a stable closed loop system, the gain at phase crossover frequency should always be:
A. < 20 dB B. < 6 dB C. > 6 dB D. > 0 dB
Explanation: Phase crossover frequency is the frequency at which the gain of the system must be 1 and for a stable system the gain is decibels must be 0 db.