Solve it only for part A Q. 3An ac equivalent circuit of a Darlington pair configuration is shown in Fig-ure P6.79. The transistor parameters are B = 120, B2 = 80, VAI = 80 V,VA2 = 50 V.Ic2 = IBias = 1 mA; (b) Ic2 = 1 mA, IBias = 0.2 mA; and (c) Ic2 = 2 mA,IBias = 0.andDeterminethe outputresistanceR.for (a)Q2AC groundBiasFigure P6.79

Output resistance is collector to base resistance of Q2 Which is ro = Va/Ic

Answered: Q. 3 An ac equivalent circuit of a…

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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Current and impedance levels of push-pull RF amplifier. Solid-state RF power amplifiers that provide more than 50 W or so must deal with very large currents, because the typical silicon RF BJT or PET cannot with-stand a DC collector voltage higher than about 40V. (Newer devices using materials such as silicon carbide can exceed this voltage limitation and provide greater power for the same current level.) Suppose a push-pull RF amplifier using a DC collector voltage of 36 V must provide a total peak RF output power of 200W. Typically, the AC "swing" (peak-to-peak AC excursion) of voltage at the collectors cannot exceed twice the DC power-supply voltage. (a) If each of the two devices in the push-pull amplifier delivers IOOW and has a peak-to-peak voltage of (2 x 36) = 72 V across its output terminals , what is the peak current I at the collector of each device, assuming . "d C(PK) smus01 al voltage and current? (b) At this current IC<PK >' how much series inductance L at a…
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Design a Single-Stage Common Emitter Class A Amplifier Specifications:Voltage Divider Bias Circuit Supply: Any value from 10Vdc to 24VdcLoad: 1kΩVoltage Gain: Any value from 80 to 400Lower Cutoff Frequency: 100 HzSinusoidal source (zero internal resistance): 50mVp-pTransistor: Si, β = 75 • Base-Collector capacitance = 8pF • Base-Emitter Capacitance = 25pF a) compute for the biasing resistances.b) determine the dc transistor terminal voltages and transistor currents.
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