Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Find the desired values below in the feedback amplifier circuit in the figure.
a) Voltage and current in amplifier circuit when Rf resistor is open circuit and RL resistor is present Show step-by-step the formula that gives the profit.
b) Step of the formula showing the feedback current gain Ai when the Rf feedback resistor is connected find step.
Transcribed Image Text:pVcc
Rc
RL
R2
RE.
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- A voltage-voltage feedback amplifier employs a basic amplifier with input resistance of 20 MOhms, output resistance of 2kOhms and gain A = 1000. The feedback factor k = 0.1. The closed loop input resistance Rince, and the closed loop output resistance Rociof the closed-loop amplifier are: Rincl= Gand Rout 2arrow_forwardDescribe the method for calculating gain in a cascade analysis.arrow_forwarda) Two feedback configurations are shown in Figures Q1.a(i) and Q1.a(ii). Derive the closed-loop gain Af in each case. V₁. V₁. A1 B1 Figure Q1.a(i) A₁ B₁ Figure Q1.a(ii) A₂ A₂ B₂ ܘܢ -Varrow_forward
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