3) For the feedback amplifier circuit shown below has the following parameters: Rs = 80k2, Rc = 4k2, RD= 2k2, R₁ = 2k2, R₂ 3k2. Assuming the internal resistor in MOSFETs is infinite (ro = ∞ ), gm = 5mA/V and for BJT VBE = 0.7V, B = 100, re = 1492, Ib = 20μΑ. a) State the type of feedback topology circuit. b) Identify the feedback portion of the circuit. c) Determine R₁1 and R22. d) Find Bf. e) Draw the small AC equivalent circuit of the below amplifier. f) Determine Af. g) Determine Rif and Rof. L Ry IS € RS +12v RC Q Q2N3904 R1 ww RD M +12v MbreakN R2 Re Io

3) For the feedback amplifier circuit shown below has the following parameters: Rs = 80k2, Rc = 4k2, RD= 2k2, R₁ = 2k2, R₂ 3k2. Assuming the internal resistor in MOSFETs is infinite (ro = ∞ ), gm = 5mA/V and for BJT VBE = 0.7V, B = 100, re = 1492, Ib = 20μΑ. a) State the type of feedback topology circuit. b) Identify the feedback portion of the circuit. c) Determine R₁1 and R22. d) Find Bf. e) Draw the small AC equivalent circuit of the below amplifier. f) Determine Af. g) Determine Rif and Rof. L Ry IS € RS +12v RC Q Q2N3904 R1 ww RD M +12v MbreakN R2 Re Io

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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The ac equivalent circuit for an amplifier is shown . Assume the capacitors have infinite value, RI = 10 kΩ, RB = 5 MΩ, RC = 1.5 MΩ, and R3 = 3.3 MΩ. Calculate the input resistance and output resistance for the amplifier if the BJT Q-point is (2 μA, 2 V). Assume βo = 40 and VA = 50 V.
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