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Answer Posted / sumit sharma
pid is proportional integrative derivative
pid is a closed loop system which is used for error checking of analog devices only, it cant used on digital devices.
pid consistes of
kp proportional
ki integrative
kd derivative
in pid tuning first kp,ki,kd is taken as any integer and then error is checked by the pid formulae
if there is error then the values of kp ki kd can be changed to give the error 0
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