Show that the active filter in Figure P144 has a transfer function of the form Ts

Show that the active filter in Figure P14–4 has a transfer function of the form TðsÞ ¼ V2ðsÞ

V1ðsÞ

¼ 1 R1R2C1C2s2 þ R2C2s þ 1 Using C1¼C2¼C, develop a method of selecting values for C, R1, and R2. Then select values so that the filter has a cutoff frequency of 100 krad/s and a z of 0.6. Use MATLAB to plot the filter’s Bode diagram. Determine the type of filter it is and its roll-off.

Transcribed Image Text:

R1 www + v1(t) + R2 www C C /+ FIGURE P14-4 v2(t)