a. Using Experiment 3A, what is the gain margin with the default settings? What is this on

Question:

a. Using Experiment 3A, what is the gain margin with the default settings? What is this on the linear scale?

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b. What gain of KP would cause instability?

c. What gain of KP will yield 3 dB of GM? Install this gain and comment on the step response. How much peaking does this cause? 

d. What conclusion can you draw regarding 3 dB of GM?

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