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The compensator Gc(s) =5(1+0.3s)/(1+0.1s) would provide a maximum phase shift of:

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The compensator Gc(s) =5(1+0.3s)/(1+0.1s) would provide a maximum phase shift of:

(a) 20°

(b) 45°

(c) 30°

(d) 60°

I had been asked this question by my school teacher while I was bunking the class.

Question is from Performance Indices in chapter Time Response Analysis, Design Specifications and Performance Indices of Control Systems

1 Answer

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Best answer
Correct option is (c) 30°

The explanation: Maximum phase shift sin^^(-1)⁡ [(1-α)/(1+α)] and sin^^(-1)⁡[1/2] = 30°.

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