What is mean by PID controller? And what is its Long form?

Answer Posted / harsh

pid controller is used to obtain a wave which is the
summation of 3 different waves, 1st part-which is
proportional to the input wave, 2nd-which is the integrated
value of the original wave, 3rd-which is the derivative of
th e original wave. As the name suggests;pid-proportional
integral derivative controller

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