Given the feedback circuit below and assuming the voltage amplifier has gain A₂, input resistanceR₁ and output resistance Ro, answer the following questions:+a. Loop gainb. Closed loop gainReC. Input resistanced. Output resistanceRinм+REA) Sketch the feedback small signal model of this circuit. (Hint: You may convert the input VINand source resistance Rs to its Norton current equivalent if needed)B) Find the following in terms of the amplifier parameters and resistances R, and RF:Rout

We need to calculateA)the small signal model of op-amp circuit .B) loop gain , closed loop gain,…

Given the feedback circuit below and assuming the voltage amplifier has gain Av, input resistance and output resistance Ro, answer the following questions: Rs a. Loop gain b. Closed loop gain c. Input resistance d. Output resistance Rin м x RE QV₂ Rout A) Sketch the feedback small signal model of this circuit. (Hint: You may convert the input VIN and source resistance R, to its Norton current equivalent if needed) B) Find the following in terms of the amplifier parameters and resistances Rs and RF:

Given the feedback circuit below and assuming the voltage amplifier has gain Av, input resistance and output resistance Ro, answer the following questions: Rs a. Loop gain b. Closed loop gain c. Input resistance d. Output resistance Rin м x RE QV₂ Rout A) Sketch the feedback small signal model of this circuit. (Hint: You may convert the input VIN and source resistance R, to its Norton current equivalent if needed) B) Find the following in terms of the amplifier parameters and resistances Rs and RF:

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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e. f. a. An ideal feedback amplifier is given as block diagram. According to feedback topology do the required calculations and fill the blanks. Show your calculation steps as well. b. C. The type of feedback applied to this circuit is Forward direction transfer function is Feedback transfer function is d. Value of open loop gain of the amplifier is. Value of feedback loop gain of the amplifier is.. 1 Considering that V₁ = 100mV; V=99mV; V, = 5V. Show all the required calculations. Value of closed loop gain of the amplifier is ... amplification. ..amplification. ..(Calculate and write with unit) ..(Calculate and write with unit) ..(Calculate and write with unit)
2. For the Feedback Amplifier circuit shown in Figure 4, determine the following: a. Identify the type of sampling and mixing for the amplifier. b. Calculate the feedback factor for the amplifier. c. Draw the small signal equivalent circuit for the amplifier with no feedback and calculate the voltage gain without any feedback. d. Calculate the voltage gain with feedback. e. Calculate input and output resistances of the amplifier with feedback. B=100; 2=2.5k12. No DC Calculations necessary. +15V IK: Vs look TON't 27k fig. lONf -15V 4. €2.5k ZONE lk $250 Yout F₂0 =20NF lok
The ............... element measures the output and gives as a feedback .
2-) The AC equivalent of a feedback amplifier circuit is given in the figure on the right. (Hfe100, Va = ∞, Ic1 = 15 mA, Ic2 = 5mA and Ic3 = 5 mA) a) State the type of feedback used in the circuit, explaining the reason. b) Draw the small signal equivalent of the amplifier circuit. c) Calculate the value of β for the feedback by drawing the β circuit. d) Find the Avf = Vo / Vs closed loop gain of this circuit. e) Find the Rif and Rof values.
3. Inverting Amplifier is a normal OP-Amp in which the output is given as feedback with a feedback resistor. i. Draw a circuit diagram for the inverting amplifier. Derived the expression for the closed loop gain for the inverting amplifier. iii. In an inverting amplifier input resistance (R1) =2.2 k2 and feedback resistance 220kN. Calculate the closed loop gain for the inverting amplifier.
1. TRUE OR FALSE . (a) The closed loop gain of a negative feedback amplifier is less than its open loop gain.(b) For a voltage amplifier, the input impedance and output impedance should be very high.(c) For a transconductance amplifier, the input impedance should be very low and the output impedance shouldbe very high.(d) For a voltage amplifier, the output voltage on the load decreases if the output impedance of the amplifierincreases.(e) For a current amplifier, the output current on the load decreases if the output impedance of the amplifierincreases.
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. 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. 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 Resistance Output Resistance Voltage amplifier Current amplifier Transresistance amplifier Tranconductance amplifier
Consider the series-shunt feedback amplifier of Figure below. Assume that the voltage divider (R1, R2) is implemented with a 1-MQ potentiometer. Assume that the MOSFET is biased so that gm 4 mA/V and r, is large. Also, Rp = 10 k. A VDD Find the value of R1 that results in a closed-loop gain of 5 V/V. Rp R2 R1 V,
What are the advantages of positive feedback amplifier?
Use the PAL with a feedback portion below to implement the following function:
what is the equation for the gain?
B- Design a floating current-to-voltage converter that will convert a 4-to20 mA current signal into 0-to 10 V ground-referenced voltage signal. Let the Gain is 5 and feedback resistor (R) is 20 KN.