(b) If the parameters for the BJT in Figure Q.1(b) are given as ß= 140, VBE = 0.7 V, VT=26 mV and VA-00. Given that collector current, Ic is 4.2 mA and R₁ || R₂ = 500 km2: 20 V C₂=0.1 μF HE - Vo RL 100 Ω Rs 500 ΩΣ Zo RE 1km. CB = 1 μF Vs Z₁ Figure Q.1(b) (1) Draw and label the small-signal hybrid- equivalent circuit at middle frequency. (ii) Determine the input impedance, Z, and output impedance, Zo. (iii) Calculate the mid-band voltage gain, Av=V/Vi buy (iv) Determine the low cut-off frequency caused by C₁ and C2, and indicate which one is the dominant frequency. C₁-1 µF HE R₁ + www S www R₂ ww Rc 900 £2 Ic

(b) If the parameters for the BJT in Figure Q.1(b) are given as ß= 140, VBE = 0.7 V, VT=26 mV and VA-00. Given that collector current, Ic is 4.2 mA and R₁ || R₂ = 500 km2: 20 V C₂=0.1 μF HE - Vo RL 100 Ω Rs 500 ΩΣ Zo RE 1km. CB = 1 μF Vs Z₁ Figure Q.1(b) (1) Draw and label the small-signal hybrid- equivalent circuit at middle frequency. (ii) Determine the input impedance, Z, and output impedance, Zo. (iii) Calculate the mid-band voltage gain, Av=V/Vi buy (iv) Determine the low cut-off frequency caused by C₁ and C2, and indicate which one is the dominant frequency. C₁-1 µF HE R₁ + www S www R₂ ww Rc 900 £2 Ic

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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