HW 6 Assignment - example 3 Determine the phase margin and...

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EML 4312 Spring 2011 Bode Plots, Gain and Phase Margin The due date for this assignment is Friday 4/1. Using semilog paper will help dramatically. 1. Draw the asymptotic bode plot for the following open-loop transfer functions. (a) H ( s ) = s + 2 ( s + 1) 2 (b) H ( s ) = ( s + 1) s 2 ( s + 10) (c) H ( s ) = 1 s (2 s + 1)( s + 20)( s + 300) (d) H ( s ) = 50( s + 10) ( s + 1)( s + 2)( s + 100) 2. Do the bode plot for the above examples using MATLAB, turn in your plots for each
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Unformatted text preview: example. 3. Determine the phase margin and gain margins for each plant in the above examples. 4. For 1(c), f nd k so that the phase margin is 25 deg. 5. For 1(d), f nd k so that the phase margin is 40 deg. 1...
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