Q3 a)Show that negative feedback can reduce the sensitivity of an amplifier circuit,by deducing the expression of dAd/dAo]-b) Figure Q3.b shows a discrete transistor feedback configuration.VccRCRFO voViRsFigure Q3.b1) Identify the feedback topology of this configuration.2) What type of amplifier is this configuration? How the feedback can affectits input and output resistances?3) Draw the small-signal equivalent circuit and derive the closed looptransfer function.c) Copy the following table into your answer book and complete it with either'infinite' or 'zero'. Please note that table is for ideal amplifiers.Input ResistanceOutput ResistanceVoltage amplifierCurrent amplifierTransresistance amplifierTranconductance amplifier

According to guidelines, we are allowed to solve only first 3 subparts. Since the second subpart…

Show that negative feedback can reduce the sensitivity of an amplifier circuit, by deducing the expression of dAd/dAol. Figure Q3.b shows a discrete transistor feedback configuration. Vc RC RF O Vo Vi Rs Figure Q3.b 1) Identify the feedback topology of this configuration. 2) What type of amplifier is this configuration? How the feedback can affect its input and output resistances?

Show that negative feedback can reduce the sensitivity of an amplifier circuit, by deducing the expression of dAd/dAol. Figure Q3.b shows a discrete transistor feedback configuration. Vc RC RF O Vo Vi Rs Figure Q3.b 1) Identify the feedback topology of this configuration. 2) What type of amplifier is this configuration? How the feedback can affect its input and output resistances?

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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C. Draw a n-p-n transistor connected in circuit common emitter (CE). Draw the input current-voltage characteristic, the output current-voltage characteristics and the graph giving dependence of the output current as function of the input current. Define the amplification gain of this circuit.
b) Figure Q3.b shows a discrete transistor feedback configuration. Vcc Rc RF O Vo Vi Rs Figure Q3.b 1) Identify the feedback topology of this configuration. 2) What type of amplifier is this configuration? How the feedback can affect its input and output resistances? 3) Draw the small-signal equivalent circuit and derive the closed loop transfer function.
With an aid of a. c. equivalent circuit, derive an equation representing common- mode gain (Ac) of the circuit.
Draw a n-p-n transistor connected in circuit common base (CB).Draw the input current-voltage characteristic, the output current-voltage characteristicsand the graph giving dependence of the output current as function of the input current.Define the amplification gain of this circuit.
VR2 (t) voltage will be calculated by analyzing the circuit in Figure 2 with a non-linear element using the Small Signal Analysis method. For this purposea) Find the operating point VkQ, IkQ voltage and current values of the nonlinear element.b) Linearize the non-linear element at the operating point.c) Find the voltage VR2 (t) by calculating the effect of the variable source using the linear model.
1. Consider an inverting operational amplifier circuit with Ri = 10kohms and Rf = 50kohms. a. Determine the closed loop voltage gain b. Determine the input impedance of the circuit. c. Determine the ideal output impedance of the circuit. d. Determine the peak input voltage, Vi(peak) for which linear operation is possible. e. Determine the output voltage for each of the following values of input voltage. 2. Assume that for the circuit in problem1, for Vi = -2V, assume that an external load RL=2kohms is connected to the output. Determine the total op amp output current.
Derive a mathematical expression to determine the stability factor for voltage – feedback bias circuit 3- S(β)
List and discuss the method to improve output signal-to-noise ratio (SNR) in amplifier configuration
d) With the aid of a sketch, describe briefly the definition of the slew rate of an amplifier. Comment on the general principle of selecting an appropriate slew rate of an amplifier in order to avoid causing signal distortion.
Explain amplifier characteristics
Explain "Crossover Distortion" in class B amplifiers in details. Illustrate the distortion on a sample signal. Propose a solution to reduce the distortion.
(1) Describe in detail the relative advantages of Class A and Class B amplifiers. In what types of circuits would Class B be advantageous over Class A (1I) With the aid of signal diagrams, describe two forms of distortion you would expect to observe on an output signal of a Class B amplifier. (III) Describe in circuit terms the advantages of a Class AB amplifier.