Assume the NMOS transistor is in saturation. Below, we use our class convention to note that DC voltages with capital letters, e.g., Vas, AC voltages with lowercase letters, e.g., Vgs, and the total signal as a combination of lowercase and uppercase letters, e.g., Vas. In short: Vas= Vgs+ Vas. The input is attached to the source of the transistor. (a) DC analysis: find an expression for VGs in terms of Vo, Vị and the resistors. Find an expression for Ips in terms of Vas. (b) Find and draw the small-signal model of this circuit.
Assume the NMOS transistor is in saturation. Below, we use our class convention to note that DC voltages with capital letters, e.g., Vas, AC voltages with lowercase letters, e.g., Vgs, and the total signal as a combination of lowercase and uppercase letters, e.g., Vas. In short: Vas= Vgs+ Vas. The input is attached to the source of the transistor. (a) DC analysis: find an expression for VGs in terms of Vo, Vị and the resistors. Find an expression for Ips in terms of Vas. (b) Find and draw the small-signal model of this circuit.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Consider the circuit on the left with three resistors and an NMOS transistor. The purpose of this problem will be to find the small signal model of this circuit.
c） Find the small-signal gain (vo / vi) of the circuit.
As as possible！
Transcribed Image Text:Assume the NMOS transistor is in saturation. Below, we use our
class convention to note that DC voltages with capital letters, e.g.,
Vas, AC voltages with lowercase letters, e.g., Vgs, and the total signal
as a combination of lowercase and uppercase letters, e.g., vcs. In
short: Vas= Vgs+ Vcs.
The input is attached to the source of the transistor.
(a) DC analysis: find an expression for Vcs in terms of Vo, Vị and
the resistors. Find an expression for Ins in terms of Vas.
(b) Find and draw the small-signal model of this circuit.
Transcribed Image Text:VDD
R3
R1
R2
(VI
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