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A controller, essentially, is a

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A controller, essentially, is a

(a) Sensor

(b) Clipper

(c) Comparator

(d) Amplifier

I have been asked this question in an international level competition.

This intriguing question comes from Linear Approximation of the Non-Linear System in section Control System and Components of Control Systems

1 Answer

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Best answer
Correct choice is (c) Comparator

Explanation: A controller is essentially the comparator which compares the given input with the reference input and generates the error signal.

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