<P> Negative feedback (or balancing feedback) occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output, whether caused by changes in the input or by other disturbances . </P> <P> Whereas positive feedback tends to lead to instability via exponential growth, oscillation or chaotic behavior, negative feedback generally promotes stability . Negative feedback tends to promote a settling to equilibrium, and reduces the effects of perturbations . Negative feedback loops in which just the right amount of correction is applied with optimum timing can be very stable, accurate, and responsive . </P>

What is meant by a negative feedback system