Question

please do not use the kvl and kcl to find the equation, use the Y11 .. Y 22 formula to solve please

Problem 3 Determine the y parameters of the circuits below. ΠΩ ΛΙΛ 30 Ω ΑΜΜΟ Ο. ΟΙ ΛΜΑ, 30 Ω ΟΙ ΑΛΛΜ 30 Ω Λ 2Ω 40 Ω 40 Ω Ο. ΟΙ 3Ω 4Ω 40 Ω 40 Ω 30 Ω Σ O

Answer 1

The Y parametre are calculated by applying 2port networks analysis and it is given below for each circuit.

1 + va Y- parameters I = Vivi & Viz Va I = V. Vt TV₂ V2=0, Y, FI / 6 / ; V, 50 V2 - II / 12 / if V₂ = 0; v. = (2/3) I, Xi = 30 I INT; V=-(2/3)* 31, V = -2 I ₂ V2 = 20 372 2 ½ if v=0; V₂ 2I : 122=2v V=2(-1); U= - 2I,; Y 12-28 I 1 Y, 1/450 V 300 V0; V= (15+30)1, 1.-451, ; V = 45 (-2 Iz) = -900, 12, 14000 V 30.0 Yao U=0; V₂ = 45 Iz V = 456-21) = -401, Y= 145 -Yo 145) // (3 1 I, 1 fo 832 Uz when I₂ = 0; v = (1//62) I, V = 61, I, IN = -1; V=-6. Iz Co my (VG -V 2- + When V,=0 V2 = (60/13) 1₂ = 2I2 12*3 = -1,7 V, 21-31,) -- 61, 12 = 0; v = 140+40 + 280) I, = 105 I, Ips 1,440.; V;= (8012510X Iz = -290 12 when v-o; V2 = 140 + 30+)1,= 290 12; 1, -1,440 , + (70+50)-SI, Thos - 12290 V2 = -290 ) Ebro 2 40.- non --W T 40 V 400- 110 300 120 3/290 /

Current division rules are used for calculating parameters and no where KVL and KCL applied.These are perfectly correct.

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