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(a) If the transistor has V, = 1 V, and k, = 4 mA/V’, verify that the bias circuit establishes Vgs = 1.5 V, I, = 0.5 mA, and V, = +7.0 V. That is, assume these values, and %3D %3D verify that they are consistent with the values of the circuit components and the device parameters. (b) Find g and r, if V, = 100 V. (c) Draw a complete small-signal equivalent circuit for the amplifier, assuming all capacitors behave as short circuits at signal frequencies. (d) Find R, V/v.jg+ v,/v» and v,/vig-

(a) If the transistor has V, = 1 V, and k, = 4 mA/V’, verify that the bias circuit establishes Vgs = 1.5 V, I, = 0.5 mA, and V, = +7.0 V. That is, assume these values, and %3D %3D verify that they are consistent with the values of the circuit components and the device parameters. (b) Find g and r, if V, = 100 V. (c) Draw a complete small-signal equivalent circuit for the amplifier, assuming all capacitors behave as short circuits at signal frequencies. (d) Find R, V/v.jg+ v,/v» and v,/vig-

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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7.33 Figure P7.33 shows a discrete-circuit amplifier. The input signal vig is coupled to the gate through a very large capacitor (shown as infinite). The transistor source is connected to ground at signal frequencies via a very large capacitor (shown as infinite). The output voltage signal that develops at the drain is coupled to a load resistance via a very large capacitor (shown as infinite). All capacitors behave as short circuits for signals and as open circuits for de. (a) If the transistor has V, = 1 V, and k, = 4 mA/V', verify that the bias circuit establishes Ves = 1.5 V, I, =0.5 mA, and V, = +7.0 v. That is, assume these values, and %3D verify that they are consistent with the values of the circuit components and the device parameters. (b) Find g„, and r, if V, = 100 V. (c) Draw a complete small-signal equivalent circuit for the amplifier, assuming all capacitors behave as short circuits at signal frequencies. (d) Find R, V/vig, v,/Vg» and v,/vig- +15 V 10 MN 16 k2 Rie = 200 k) 16 kN Vaig 5 ΜΩ 7 kN Rin Figure P7.33
Transcribed Image Text:7.33 Figure P7.33 shows a discrete-circuit amplifier. The input signal vig is coupled to the gate through a very large capacitor (shown as infinite). The transistor source is connected to ground at signal frequencies via a very large capacitor (shown as infinite). The output voltage signal that develops at the drain is coupled to a load resistance via a very large capacitor (shown as infinite). All capacitors behave as short circuits for signals and as open circuits for de. (a) If the transistor has V, = 1 V, and k, = 4 mA/V', verify that the bias circuit establishes Ves = 1.5 V, I, =0.5 mA, and V, = +7.0 v. That is, assume these values, and %3D verify that they are consistent with the values of the circuit components and the device parameters. (b) Find g„, and r, if V, = 100 V. (c) Draw a complete small-signal equivalent circuit for the amplifier, assuming all capacitors behave as short circuits at signal frequencies. (d) Find R, V/vig, v,/Vg» and v,/vig- +15 V 10 MN 16 k2 Rie = 200 k) 16 kN Vaig 5 ΜΩ 7 kN Rin Figure P7.33
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