A2 a) Design a common emitter amplifier as shown in Figure A2, with a split emitter resistor to control the gain. The specification of the amplifier is as listed below, and 10 base currents method can be used for the design. Fixed parameters: Where VCC=7.2V, VE=VCC/3, VBE=0.7V, Beta = 160, RL = 75kOhms Specification: Design for Max Symmetrical Swing, IC = 0.7mA, AV = 30DB i) Sketch the DC voltages and superimpose the AC voltages on the same sketch to highlight your understanding of the design. i) Determine the value of RE and RC. i) Determine the values of RU and RL for the design iv) Determine the bias components RE1 and RE2 for the design b) Determine the input impedance of the transistor amplifier using the small signal equivalent model for the circuit above. i) Sketch the small signal model. i) Calculate the value of the input impedance. Evaluate the influence of the coupling capacitor and the equivalent input impedance if they serve as a filter. Vout 1u BLOAD 75k REI VOFF =0 VAMPL= 10m FREQ = 1000 AC= 10m RE 10u Figure A2 Common Emitter Amplifier design 8 la

A2 a) Design a common emitter amplifier as shown in Figure A2, with a split emitter resistor to control the gain. The specification of the amplifier is as listed below, and 10 base currents method can be used for the design. Fixed parameters: Where VCC=7.2V, VE=VCC/3, VBE=0.7V, Beta = 160, RL = 75kOhms Specification: Design for Max Symmetrical Swing, IC = 0.7mA, AV = 30DB i) Sketch the DC voltages and superimpose the AC voltages on the same sketch to highlight your understanding of the design. i) Determine the value of RE and RC. i) Determine the values of RU and RL for the design iv) Determine the bias components RE1 and RE2 for the design b) Determine the input impedance of the transistor amplifier using the small signal equivalent model for the circuit above. i) Sketch the small signal model. i) Calculate the value of the input impedance. Evaluate the influence of the coupling capacitor and the equivalent input impedance if they serve as a filter. Vout 1u BLOAD 75k REI VOFF =0 VAMPL= 10m FREQ = 1000 AC= 10m RE 10u Figure A2 Common Emitter Amplifier design 8 la

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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