Problem 9 (10 points) (Chap 3) (Learning objective: Standing wave)A datasheet for a particular amplifier indicates that the VSWR at the input of theamplifier is 1.2. The amplifier is designed to interface to a source impedance of 50 2. Letus assume that the imaginary part of the amplifier's input impedance is negligible. What isthe expected range of input impedances of this amplifer?

Answered: Problem 9 (10 points) (Chap 3)…

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 term duty cycle refers to the amount of time a signal is complete cycle. A. off compared to the period of one B. on The output voltage of op-amp is positive saturation, when the voltage applied to the input is greater than the input. A. inverting B. noninverting A square wave that is 20V at its high state and OV when it is off will produce an average DC when its duty cycle is 75%. Formula: VOUT = Duty Cycle * Peak voltage voltage of A. 7.5V B. 10V C. 15V
1. For the pointer position in the diagram, what is the input signal if the range is set at 0.3 V? A. For the pointer position in the diagram, what is the input signal if the range is set at 1 V? B. For the pointer position in the diagram, what is the input signal if the range is set at 30 V? C. Let’s say you know that the input signal will be about -0.25 V. What range should you select to give maximum deflection without going off scale? Draw a line, with a straight-edge, on the picture above, showing how the pointer would point.
4. Assume the following data from the Zener diode datasheet: Zener knee current =0.25mA, Zener Max Current=100mA, and max de power dissipation = 1 W, and regulated output voltage = 7.5 V. For the circuit below answer the following questions (a-b): V2 R1 www 1kQ Fig. 3 D2 R2 6 1.
Briefly comment on the significance of controlling the bandwidth of frequencies anamplifier intends to amplify.
Describe this woofer it is Truvox 1225?
Draw a circuit diagram of a Class-C power amplifier. Explain the reason why a Class-C power amplifier is in general more efficient than a Class-B power amplifier. What is the main disadvantage of Class-C power amplifiers?
R2 R, 1+ -VEE =- 15 V V. out in R, R1 R1 = 5.6 kQ V out Vin Vcc =+ 15 V Rin 19) calculate the value of R2 required for a closed-loop voltage gain of 5V/V
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Difference in inverting and non inverting amplifier.
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Five different CMo differential amplifier circuits are shown below. Use intuitive approach of finding the small signal current caused by the application of a small signal input voltage Vin, and write by inspection the approximate small signal output resistance, Rout, seen looking back into each amplifier and the approximate small signal differential voltage gain, vout/Vin. Leave your answer in terms of gmi and gasi (i=1 thru' 8) M. M, M. M, M. M. V BP V. aut auf M, M, M, V. M V. Vout M2 M2 V. (), II IV м. M. M, VEN M. V
6) Consider the following multistage amplifier. Draw the corresponding small signal model. Label, Vin, Vo1 and Vo. Do NOT make any approximations. Do NOT perform small signal analysis with this model. Just draw the small signal model. Show your work! Vin Vcc malli Q1 Re1 Vo1 Vcc ww1. Rc2 Q2 Re2 Vo

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