## FANDOM

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A unity feedback system is a control system that has no component in the feedback path.

If W = V = 0:

$E = {R \over {1 + DG}}$

General case:

$E = R - \left( {V + GW + Gu} \right) = {{R - \left( {V + GW} \right)} \over {1 + DG}}$

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