P, PD Control 3P 0T1T2 Step Response and Bode Plot
Applet shows the frequency response(Bode plot) of a third order type 1 system with PD control.
The plot shows that the PD controller increases the frequency at which the gain = 0dB but this effect is more than compensated by the increase in the phase margin.
Gif image below show how the applet should appear.
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COPYRIGHT © 2006 Cuthbert Nyack.