A minimum phase unity feedback system has a bode plot with a constant slope of -20dB/decade for all frequencies. What is the value of the maximum phase margins of the system?
A. 0°
B. 90°
C. -90°
D. 180°
Answer:B
A minimum phase unity feedback system has a bode plot with a constant slope of -20dB/decade for all frequencies. What is the value of the maximum phase margins of the system?
A. 0° B. 90° C. -90° D. 180°
Explanation: For given Bode plot, G(s) H(s) =K/jw