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Bi 1: Cho h thng nh Hnh 1.
R(s)Y(s)+_Hnh 1
1.1 V biu Bode bin ca h h trong 2 trng hp K = 1 v K = 10.. (Gi : Hm truyn h Gh(s) = GC(s)*G(s)).1.2 nh gi tnh n nh ca h kn v xc nh cc h s v tr Kp, vn tc Kv v gia tc Ka trong 2 trng hp trn.1.3 T kt qu ca cu 1.2, rt ra nhn xt v vt l v sai s xc lp khi tng li K.
Bi 2 : Cho h thng nh Hnh 2. ` R(s)
G(s)
+
Vi Hnh 2
3.1. V biu Bode bin v pha ca h h.
3.2. Xc nh tn s ct bin v tn s ct pha .Tnh d tr bin , d tr pha.Xt n nh h thng kn.