EXAMPLE 23 The emitter-bias configuration of Fig. 61 has the following specifications: %3D Solution: Ic = = 4 mA VR Vcc- Vc %3D

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...
icon
Related questions
Question
I need the answer quickly
• E:19
%07 l. LI
*Feedback bias: Change Rg to Rc in above equation
28 V
"Co- Hut. IC = 8 mA, Ve = 18 V, and B = 110. Determine Ro Rg, and R.
Solution:
R.
Ve = 18 V
Ico = Hc = 4 mA
VR Vcc- Vc
Rc =
Ice
28 V - 18 V
Ice
RE
2.5 kn
4 mA
FIG, 61
Example 23.
Vcc
Rc+ RE
28 V
= 3.5 kl
and
Rc + Rg =
8 mA
RE = 3.5 kn - Rc
- 3.5 kn - 2.5 kfl
= 1kn
Ice 4 mA
= 36.36 µA
110
Vcc- VBE
R + (B + 1)RE
Vce - VBE
and
R + (B + 1)RE =
Vec- VRE
R =
- (B + 1)RE
with
28 V - 0.7 V
- (111)(I kn)
36.36 HA
27.3 V
1I1 kn
36.36 HA
= 639.8 kn
For standard values,
Rc = 2.4 kn
Rg = 1 kn
Ry = 620 kn
Equations
Ic = Blp
VBE = 0.7 V,
Ig = (B + 1)/ Ic
Fixed bias:
Vcc-VBE
RB
Ic = BlB
Emitter stabilized:
Vcc- VBE
Rp + (B + DRE
R, = (B + 1)RE
Voltage-divider bias:
ETh - VBE
Transcribed Image Text:• E:19 %07 l. LI *Feedback bias: Change Rg to Rc in above equation 28 V "Co- Hut. IC = 8 mA, Ve = 18 V, and B = 110. Determine Ro Rg, and R. Solution: R. Ve = 18 V Ico = Hc = 4 mA VR Vcc- Vc Rc = Ice 28 V - 18 V Ice RE 2.5 kn 4 mA FIG, 61 Example 23. Vcc Rc+ RE 28 V = 3.5 kl and Rc + Rg = 8 mA RE = 3.5 kn - Rc - 3.5 kn - 2.5 kfl = 1kn Ice 4 mA = 36.36 µA 110 Vcc- VBE R + (B + 1)RE Vce - VBE and R + (B + 1)RE = Vec- VRE R = - (B + 1)RE with 28 V - 0.7 V - (111)(I kn) 36.36 HA 27.3 V 1I1 kn 36.36 HA = 639.8 kn For standard values, Rc = 2.4 kn Rg = 1 kn Ry = 620 kn Equations Ic = Blp VBE = 0.7 V, Ig = (B + 1)/ Ic Fixed bias: Vcc-VBE RB Ic = BlB Emitter stabilized: Vcc- VBE Rp + (B + DRE R, = (B + 1)RE Voltage-divider bias: ETh - VBE
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Similar questions
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,