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Q.4: In the BJT amplifier circuit of figure 4, the DC bias current Ic is 2.3 mA. The transistor has a =100 and Early voltage V₁ =100 Volts. 100 ΚΩ V₂ +10 V 23 ΚΩ V Figure 4 (a) Draw the small-signal ac equivalent model for the amplifier and show the values of the ac parameters gm, r, ro. (b) Find the voltage gain vo/vs. (c) Up to what value of vs the amplifier will operate properly (i.e., the BJT shall remain in the active mode)?

Q.4: In the BJT amplifier circuit of figure 4, the DC bias current Ic is 2.3 mA. The transistor has a =100 and Early voltage V₁ =100 Volts. 100 ΚΩ V₂ +10 V 23 ΚΩ V Figure 4 (a) Draw the small-signal ac equivalent model for the amplifier and show the values of the ac parameters gm, r, ro. (b) Find the voltage gain vo/vs. (c) Up to what value of vs the amplifier will operate properly (i.e., the BJT shall remain in the active mode)?

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
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Q.4: In the BJT amplifier circuit of figure 4, the DC bias current Ic is 2.3 mA. The transistor has a =100 and Early voltage V₁ =100 Volts. 100 ΚΩ +10 V 3 ΚΩ Va Figure 4 (a) Draw the small-signal ac equivalent model for the amplifier and show the values of the ac parameters gm, rm, ro. (b) Find the voltage gain vo/vs. (c) Up to what value of vs the amplifier will operate properly (i.e., the BJT shall remain in the active mode)?
Transcribed Image Text:Q.4: In the BJT amplifier circuit of figure 4, the DC bias current Ic is 2.3 mA. The transistor has a =100 and Early voltage V₁ =100 Volts. 100 ΚΩ +10 V 3 ΚΩ Va Figure 4 (a) Draw the small-signal ac equivalent model for the amplifier and show the values of the ac parameters gm, rm, ro. (b) Find the voltage gain vo/vs. (c) Up to what value of vs the amplifier will operate properly (i.e., the BJT shall remain in the active mode)?
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