Page 13 - ANALYSIS AND ROOT LOCUS DESIGN METHOD.pptx (A4 Document)
P. 13

Two conditions are




                        required to sketch root



                                                    locus :










                                 KG(s)H(s) = -1






                  1) MAGNITUDE CONDITION

                        K l G(s) H(s) l = 1






                  2) ANGLE CONDITION






                     G(s) H (S)  =  ± 180 ° (2K  +  1)  where ( k = 0,1,2,……)





























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