vb.net barcode reader source code base-emitter junction, the transistor will be in the cutoff region in Software

Paint QR Code 2d barcode in Software base-emitter junction, the transistor will be in the cutoff region

base-emitter junction, the transistor will be in the cutoff region
Reading Denso QR Bar Code In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Denso QR Bar Code Drawer In None
Using Barcode creator for Software Control to generate, create QR image in Software applications.
EXAMPLE 93 Determining the Operating Region of a BJT
QR Code Recognizer In None
Using Barcode scanner for Software Control to read, scan read, scan image in Software applications.
QR Code 2d Barcode Maker In C#.NET
Using Barcode generation for Visual Studio .NET Control to generate, create Quick Response Code image in .NET applications.
Problem
Print QR Code In .NET
Using Barcode creator for ASP.NET Control to generate, create QR-Code image in ASP.NET applications.
QR Creation In VS .NET
Using Barcode encoder for .NET Control to generate, create Quick Response Code image in .NET applications.
Determine the operating region of the BJT in the circuit of Figure 911
QR-Code Generator In VB.NET
Using Barcode maker for VS .NET Control to generate, create QR Code image in VS .NET applications.
USS Code 39 Printer In None
Using Barcode drawer for Software Control to generate, create Code39 image in Software applications.
Solution
UPC A Printer In None
Using Barcode generation for Software Control to generate, create GTIN - 12 image in Software applications.
Barcode Generator In None
Using Barcode maker for Software Control to generate, create barcode image in Software applications.
Known Quantities: Base, collector, and emitter voltages with respect to ground
Paint Data Matrix 2d Barcode In None
Using Barcode drawer for Software Control to generate, create ECC200 image in Software applications.
Paint USS Code 128 In None
Using Barcode generator for Software Control to generate, create Code 128 Code Set A image in Software applications.
RB B V3 V1 E RE V2 VBB
2/5 Industrial Generator In None
Using Barcode creation for Software Control to generate, create Code 2 of 5 image in Software applications.
Barcode Recognizer In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
Find: Operating region of the transistor
Decoding UCC - 12 In .NET Framework
Using Barcode reader for VS .NET Control to read, scan read, scan image in VS .NET applications.
Drawing UPC A In None
Using Barcode generation for Word Control to generate, create UPC-A image in Microsoft Word applications.
V3 = VC = 23 V
Painting Data Matrix In Objective-C
Using Barcode encoder for iPhone Control to generate, create Data Matrix ECC200 image in iPhone applications.
Making GTIN - 128 In Java
Using Barcode encoder for Android Control to generate, create EAN128 image in Android applications.
Schematics, Diagrams, Circuits, and Given Data: V1 = VB = 27 V; V2 = VE = 2 V;
UPC A Drawer In Visual Studio .NET
Using Barcode printer for Reporting Service Control to generate, create UPC A image in Reporting Service applications.
Make Barcode In Objective-C
Using Barcode printer for iPad Control to generate, create barcode image in iPad applications.
Analysis: To determine the region of the transistor we shall compute VBE and VBC to determine whether the BE and BC junctions are forward or reverse-biased Operation in the saturation region corresponds to forward bias at both junctions (and very small voltage drops); operation in the active region is characterized by a forward-biased BE junction and a reverse-biased BC junction From the available measurements, we compute:
VBE = VB VE = 07 V VBC = VB VC = 04 V Since both junctions are forward-biased, the transistor is operating in the saturation region The value of VCE = VC VE = 03 V is also very small This is usually a good indication that the BJT is operating in saturation
Comments: Try to locate the operating point of this transistor in Figure 99(b), assuming
that IC = VCC V3 12 23 = 97 mA = RC 1,000
Selecting an Operating Point for a BJT The family of curves shown for the collector i-v characteristic in Figure 99(b) re ects the dependence of the collector current on the base current For each value of the base current, iB , there exists a corresponding iC -vCE curve Thus, by appropriately selecting the base current and collector current (or collector-emitter
9
Transistor Fundamentals
By appropriate choice of IBB , RC and VCC , the desired Q point may be selected IC C B IBB IB + VBE _ + VCE _ VCC E RC
voltage), we can determine the operating point, or Q point, of the transistor The Q point of a device is de ned in terms of the quiescent (or idle) currents and voltages that are present at the terminals of the device when DC supplies are connected to it The circuit of Figure 912 illustrates an ideal DC bias circuit, used to set the Q point of the BJT in the approximate center of the collector characteristic The circuit shown in Figure 912 is not a practical DC bias circuit for a BJT ampli er, but it is very useful for the purpose of introducing the relevant concepts A practical bias circuit is discussed later in this section Applying KVL around the base-emitter and collector circuits, we obtain the following equations: IB = IBB and VCE = VCC IC RC which can be rewritten as VCC VCE IC = RC RC (94) (93)
Figure 912 A simpli ed bias circuit for a BJT ampli er
(95)
Note the similarity of equation 95 to the load-line curves of s 3 and 8 Equation 95 represents a line that intersects the IC axis at IC = VCC /RC and the VCE axis at VCE = VCC The slope of the load line is 1/RC Since the base current, IB , is equal to the source current, IBB , the operating point may be determined by noting that the load line intersects the entire collector family of curves The intersection point at the curve that corresponds to the base current IB = IBB constitutes the operating, or Q, point The load line corresponding to the circuit of Figure 912 is shown in Figure 913, superimposed on the collector curves for the 2N3904 transistor (data sheets for the 2N3904 transistor are included in the CD-ROM that accompanies the book) In Figure 913, VCC = 15 V, VCC /RC = 40 mA, and IBB = 150 A; thus, the Q point is determined by the intersection of the load line with the IC -VCE curve corresponding to a base current of 150 A
50 45 40 35 30 25 20 15 10 5 0
Collector current, mA
IB = 250 A Q IB = 200 A IB = 150 A IB = 100 A IB = 50 A 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Collector-emitter voltage, V
Copyright © OnBarcode.com . All rights reserved.