barcode fonts for ssrs b Av in Software

Make Code 3 of 9 in Software b Av

b Av
Read Code 39 Extended In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Generate Code-39 In None
Using Barcode maker for Software Control to generate, create Code 39 image in Software applications.
Ai
Code 39 Full ASCII Recognizer In None
Using Barcode decoder for Software Control to read, scan read, scan image in Software applications.
Make Code39 In C#
Using Barcode generation for VS .NET Control to generate, create Code 39 Extended image in .NET framework applications.
0 hfe 1 hfe2 1 RF RF Zin ; d Zin 0 0 ; RF Zin RF Zin hie2 RS RF = RS RF hie1 Zo hfe2 1 hfe1 1 hfe2 1
Painting Code 3/9 In .NET
Using Barcode drawer for ASP.NET Control to generate, create Code 3/9 image in ASP.NET applications.
ANSI/AIM Code 39 Maker In Visual Studio .NET
Using Barcode drawer for Visual Studio .NET Control to generate, create Code 3 of 9 image in VS .NET applications.
hfe1 1 hfe2 1 RE ; 0 Zin
Code 39 Full ASCII Printer In VB.NET
Using Barcode encoder for .NET framework Control to generate, create Code 39 Extended image in .NET applications.
Barcode Printer In None
Using Barcode encoder for Software Control to generate, create bar code image in Software applications.
+ VCC
UCC - 12 Drawer In None
Using Barcode maker for Software Control to generate, create UPC-A image in Software applications.
Printing EAN-13 Supplement 5 In None
Using Barcode encoder for Software Control to generate, create EAN / UCC - 13 image in Software applications.
CC Q1
Encode EAN128 In None
Using Barcode printer for Software Control to generate, create EAN 128 image in Software applications.
Encode Code-39 In None
Using Barcode encoder for Software Control to generate, create Code 39 image in Software applications.
Q2 +
Creating ANSI/AIM I-2/5 In None
Using Barcode generation for Software Control to generate, create ITF image in Software applications.
Encoding GS1 DataBar-14 In .NET
Using Barcode printer for .NET framework Control to generate, create GS1 DataBar Limited image in VS .NET applications.
ie2 _ +
Matrix 2D Barcode Maker In Java
Using Barcode generator for Java Control to generate, create Matrix Barcode image in Java applications.
Code 39 Full ASCII Printer In Java
Using Barcode maker for Java Control to generate, create Code 39 image in Java applications.
Z in Zo
Decoding Data Matrix 2d Barcode In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
Encoding Data Matrix 2d Barcode In None
Using Barcode creator for Font Control to generate, create Data Matrix ECC200 image in Font applications.
Fig. 6-33
Recognizing GS1 - 13 In Visual Basic .NET
Using Barcode recognizer for .NET Control to read, scan read, scan image in VS .NET applications.
Drawing EAN / UCC - 13 In None
Using Barcode printer for Font Control to generate, create GS1 - 13 image in Font applications.
Small-Signal Midfrequency FET and Triode Ampli ers
7.1. INTRODUCTION Several two-port linear network models are available that allow accurate analysis of the FET for small drain-source voltage and small current excursions about a quiescent point (small-signal operation). In this chapter, all voltage and current signals are considered to be in the midfrequency range, where all capacitors appear as short circuits (see Section 4.6). There are three basic FET ampli er con gurations: the common-source (CS), common-drain (CD) or source-follower (SF), and common-gate (CG) con gurations. The CS ampli er, which provides good voltage ampli cation, is most frequently used. The CD and CG ampli ers are applied as bu er ampli ers (with high input impedance and near-unity voltage gain) and high-frequency ampli ers, respectively.
SMALL-SIGNAL EQUIVALENT CIRCUITS FOR THE FET
From the FET drain characteristics of Fig. 4-2(a), it is seen that if iD is taken as the dependent variable, then iD f vGS ; vDS 7:1
For small excursions (ac signals) about the Q point, iD id ; thus, application of the chain rule to (7.1) leads to id iD % diD gm vgs 200
Copyright 2002, 1988 by The McGraw-Hill Companies, Inc. Click Here for Terms of Use.
1 v rds ds
7:2
CHAP. 7]
SMALL-SIGNAL MIDFREQUENCY FET AND TRIODE AMPLIFIERS
where gm and rds are de ned as follows: Transconductance
gm 
Source-drain resistance
@iD % iD @vGS Q vGS Q @v vDS rds  DS % @iD Q iD Q
7:3 7:4
As long as the JFET is operated in the pincho region, iG ig 0, so that the gate acts as an open circuit. This, along with (7.2), leads to the current-souce equivalent circuit of Fig. 7-1(a). The voltagesource model of Fig. 7-1(b) is derived in Problem 7.2. Either of these models may be used in analyzing an ampli er, but one may be more e cient than the other in a particular circuit.
id id
rds _ mLgs +
gm Lgs
_ S (a)
_ S (b)
Fig. 7-1 Small-signal models for the CS FET
CS AMPLIFIER ANALYSIS
A simple common-source ampli er is shown in Fig. 7-2(a); its associated small-signal equivalent circuit, incorporating the voltage-source model of Fig. 7-1(b), is displayed in Fig. 7-2(b). Source resistor Rs is used to set the Q point but is bypassed by Cs for midfrequency operation.
VDD RD D G +
D 1 + +
Lo Li
rds 2 _ RD
RG _ Rin
mLgs
+ S Ro
+ Lo _
RG _
S RS (a) CS amplifier CS
(b) Small-signal equivalent circuit
Fig. 7-2
Example 7.1. In the CS ampli er of Fig. 7-2(b), let RD 3 k;  60; and rds 30 k. (a) Find an expression for the voltage-gain ratio Av vo =vi . (b) Evaluate Av using the given typical values.
SMALL-SIGNAL MIDFREQUENCY FET AND TRIODE AMPLIFIERS
[CHAP. 7
(a) By voltage division, vo Substitution of vgs vi and rearrangement give Av (b) The given values lead to Av 60 3 103 5:45 3 103 30 103 vo RD vi RD rds 7:5 RD vgs RD rds
where the minus sign indicates a 1808 phase shift between vi and vo .
CD AMPLIFIER ANALYSIS
A simple common-drain (or source-follower) ampli er is shown in Fig. 7-3(a); its associated smallsignal equivalent circuit is given in Fig. 7-3(b), where the voltage-source equivalent of Fig. 7-1(b) is used to model the FET.
S VDD D G +
Li Li
id rds
G + RG _ Rin +
m L m + 1 gd
+ Lo _
RG _
S RS
+ Lo _
_ Ro
(a) CD or SF amplifier
(b) Small-signal equivalent circuit
Fig. 7-3
Example 7.2. In the CD ampli er of Fig. 7-3(b), let RS 5 k;  60; and rds 30 k. (a) Find an expression for the voltage-gain ratio Av vo =vi . (b) Evaluate Av using the given typical values. (a) By voltage division, vo RS vgd RS  v RS rds =  1  1 gd  1 RS rds
Replacement of vgd by vi and rearrangement give Av vo RS vi  1 RS rds 7:6
(b) Substitution of the given values leads to Av 60 5 103 0:895 61 5 103 30 103
Note that the gain is less than unity; its positive value indicates that vo and vi are in phase.
CHAP. 7]
SMALL-SIGNAL MIDFREQUENCY FET AND TRIODE AMPLIFIERS
CG AMPLIFIER ANALYSIS
Figure 4-28 is a simple common-gate ampli er circuit. Its small-signal equivalent circuit, incorporating the current-source model of Fig. 7-1(a), is given in Fig. 7-4:
S + Lgs _ G 0 gm Lgs D
2 + Lo _
RS _ Rin
Fig. 7-4 CG small-signal equivalent circuit
Example 7.3. In the CG ampli er of Fig. 7-4, let RD 1 k; gm 2 10 3 S; and rds 30 k. expression for the voltage-gain ratio Av vo =vi . (b) Evaluate Av using the given typical values. (a) By KCL, ir id gm vgs . Applying KVL around the outer loop gives vo id gm vgs rds vgs But vgs vi and id vo =RD ; thus,   v vo o gm vi rds vi RD
Copyright © OnBarcode.com . All rights reserved.