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# Phase Margin and System Transfer Functions

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A system has a system transfer function (see attachment), where K=6.14. What is the actual phase margin?

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This solution provides step by step equations for calculating phase margin using a system formula.

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The general method is this:

First we find the put s=jw in the system:

G(jw)=6.14(1+jw/5)/((jw(1+jw/2)(1+jw/10))

Then we find w such that |G(jw)|=1. After finding such an w, we find the phase of G(jw) for that w and call it phi. "Phase ...

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