Frequency Analysis (Bode Analysis)

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Frequency Analysis (Bode Analysis)
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Problem Statement
Determine the range of Kc over which the
following system is stable
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Approach

• Let Kc 1
• Plot Magnitude and phase of each part using
  figures in text
• Sum magnitude parts to get total magnitude
• Sum phase parts to get total phase
• Determine Margins (Gain and Phase)

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Component Magnitude Plots
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Total Magnitude Plot
Sum of Components
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Component Phase Plot
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Total Phase Plot
Sum of Components
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Identification ofGain Margin
Gain Margin 18db
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Calculation of Gain Margin