The system has con = 10 rad/s and, since 2(o9n = 4, a damping factor
( of 0.2. The break point is when co = COn = 10 rad/s. For lower
frequencies the gain asymptote will be 0 and at the break point will
become -40 dB/decade. Figure 5.15 shows the plot. The phase will
be -90 ~ at the break point and effectively 0 ~ one decade down from
the break point and-180 ~ one decade up from the break point.
Figure 5.15 shows the plot.