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In Figure 3.3 shows the circuit diagram of a typical n-channel JFET common source amplifier. If ac input impedance of this amplifier is RGG = 1.XY Mohm, VGG = 1. XY V, RD= 1.5 x Rs and VDD=16 V. Determine the value of Rs to set the Q-point to VGs = -1.5V and ID = 3.5 mA. What is the value of VDs at the Q-point? Sketch the amplifier's small signal equivalent circuit model. If the JFET transconductance at this bias point (Q-point) is gm = 2.XY MS and go = 0.01 mS, what is the ac open circuit voltage gain Av and the ac short circuit current gain A¡ of this amplifier.

In Figure 3.3 shows the circuit diagram of a typical n-channel JFET common source amplifier. If ac input impedance of this amplifier is RGG = 1.XY Mohm, VGG = 1. XY V, RD= 1.5 x Rs and VDD=16 V. Determine the value of Rs to set the Q-point to VGs = -1.5V and ID = 3.5 mA. What is the value of VDs at the Q-point? Sketch the amplifier's small signal equivalent circuit model. If the JFET transconductance at this bias point (Q-point) is gm = 2.XY MS and go = 0.01 mS, what is the ac open circuit voltage gain Av and the ac short circuit current gain A¡ of this amplifier.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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d) In Figure 3.3 shows the circuit diagram of a typical n-channel JFET common source amplifier. If ac input impedance of this amplifier is RGG = 1.XY Mohm, VGG = 1. XY V, RD= 1.5 x Rs and VDD=16 V. Determine the value of Rs to set the Q-point to VGs = -1.5V and ID = 3.5 mA. What is the value of VDs at the Q-point? Sketch the amplifier's small signal equivalent circuit model. If the JFET transconductance at this bias point (Q-point) is gm = 2.XY MS and go = 0.01 mS, what is the ac open circuit voltage gain Av and the ac short circuit current gain A¡ of this amplifier. + VDD RG1 Vin Cin HH lin RG2 +1 VG RD 2 ¡VD Cout Vs + 20 Figure 3.3 Vout Cs lout
Transcribed Image Text:d) In Figure 3.3 shows the circuit diagram of a typical n-channel JFET common source amplifier. If ac input impedance of this amplifier is RGG = 1.XY Mohm, VGG = 1. XY V, RD= 1.5 x Rs and VDD=16 V. Determine the value of Rs to set the Q-point to VGs = -1.5V and ID = 3.5 mA. What is the value of VDs at the Q-point? Sketch the amplifier's small signal equivalent circuit model. If the JFET transconductance at this bias point (Q-point) is gm = 2.XY MS and go = 0.01 mS, what is the ac open circuit voltage gain Av and the ac short circuit current gain A¡ of this amplifier. + VDD RG1 Vin Cin HH lin RG2 +1 VG RD 2 ¡VD Cout Vs + 20 Figure 3.3 Vout Cs lout
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