P+D controller:(a) Introduces offset(b) Increases bandwidth(c) Increases margin of stability(d) Reduces velocity constantI had been asked this question during an interview.I'd like to ask this question from Cascade Compensation in Frequency Domain in section Design of Control Systems

P+D controller:(a) Introduces offset(b) Increases bandwidth(c) Increas

1.	P+D controller:(a) Introduces offset(b) Increases bandwidth(c) Increases margin of stability(d) Reduces velocity constantI had been asked this question during an interview.I'd like to ask this question from Cascade Compensation in Frequency Domain in section Design of Control Systems
Answer» Right answer is (c) Increases MARGIN of stability To EXPLAIN: Proportional DERIVATIVE controller is the controller increases margin of stability and ALSO used to increase he bandwidth and also increases the signal to noise RATIO.

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P+D controller:(a) Introduces offset(b) Increases bandwidth(c) Increases margin of stability(d) Reduces velocity constantI had been asked this question during an interview.I'd like to ask this question from Cascade Compensation in Frequency Domain in section Design of Control Systems

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