promach
Advanced Member level 4
1) Why "As gain (GmRp) increases, closed loop poles move into right half S-plane" ? http://lpsa.swarthmore.edu/Root_Locus/Example1/Example1.html does not have such right half plane route. Why can't the root locus travel along the vertical imaginary axis ?
2) From **broken link removed** , why "The root locus of an (open-loop) transfer function is a plot of the locations (locus) of all possible closed loop poles" ? Could anyone give further maths explanation on this statement ?
3) For http://en.wikipedia.org/wiki/Closed-loop_pole , why "For negative feedback systems, the closed-loop poles move along the root-locus from the open-loop poles to the open-loop zeroes as the gain is increased" ?
Screenshots extracted from **broken link removed**
2) From **broken link removed** , why "The root locus of an (open-loop) transfer function is a plot of the locations (locus) of all possible closed loop poles" ? Could anyone give further maths explanation on this statement ?
3) For http://en.wikipedia.org/wiki/Closed-loop_pole , why "For negative feedback systems, the closed-loop poles move along the root-locus from the open-loop poles to the open-loop zeroes as the gain is increased" ?
Screenshots extracted from **broken link removed**