Submit Search
Upload
Bem (6)
•
0 likes
•
19 views
A
AmeerHamzaDurrani
Follow
CED, INU Peshawar.
Read less
Read more
Engineering
Report
Share
Report
Share
1 of 25
Download now
Download to read offline
Recommended
B stad_BJT
B stad_BJT
ishant707
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-10
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-10
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-11
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-11
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-16
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-16
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-13
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-13
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-3
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-3
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-4
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-4
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-8
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-8
Shiwam Isrie
Recommended
B stad_BJT
B stad_BJT
ishant707
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-10
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-10
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-11
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-11
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-16
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-16
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-13
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-13
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-3
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-3
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-4
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-4
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-8
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-8
Shiwam Isrie
Dc basimg
Dc basimg
dahir osman
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-5
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-5
Shiwam Isrie
14 feedback & oscillator circuits
14 feedback & oscillator circuits
Tony Mac Apple
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-15
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-15
Shiwam Isrie
17 pnpn and other devices
17 pnpn and other devices
Tony Mac Apple
Chapter17
Chapter17
Îmrâñ Khãñ Afridi
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-1
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-1
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-9
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-9
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-12
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-12
Shiwam Isrie
Various configurations in BJT
Various configurations in BJT
RCC Institute of Information Technology
Bjt transistors converted
Bjt transistors converted
vijayakumar sivaji
L10 bjt introduction s21617
L10 bjt introduction s21617
Muhammad Fiaz
Lecture 8 bjt_1
Lecture 8 bjt_1
Napex Terra
BIASING OF BJT
BIASING OF BJT
Prakash Rao
Bipolar Junction Transistor
Bipolar Junction Transistor
Yong Heui Cho
Chp1 1 bjt [read only]
Chp1 1 bjt [read only]
Muhamad Zolkepli
Bipolar Junction Transistor
Bipolar Junction Transistor
Prankit Mishra
(Latest) topic 4 bipolar_junction_transistors
(Latest) topic 4 bipolar_junction_transistors
Gabriel O'Brien
1- Bipolar Junction Transistors-2.ppt
1- Bipolar Junction Transistors-2.ppt
stcompenooraa
Bem (7)
Bem (7)
AmeerHamzaDurrani
BJT AC Analysis - Gdlc.pdf
BJT AC Analysis - Gdlc.pdf
ShanmukhSaiR
Bem (8)
Bem (8)
AmeerHamzaDurrani
More Related Content
What's hot
Dc basimg
Dc basimg
dahir osman
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-5
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-5
Shiwam Isrie
14 feedback & oscillator circuits
14 feedback & oscillator circuits
Tony Mac Apple
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-15
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-15
Shiwam Isrie
17 pnpn and other devices
17 pnpn and other devices
Tony Mac Apple
Chapter17
Chapter17
Îmrâñ Khãñ Afridi
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-1
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-1
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-9
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-9
Shiwam Isrie
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-12
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-12
Shiwam Isrie
Various configurations in BJT
Various configurations in BJT
RCC Institute of Information Technology
Bjt transistors converted
Bjt transistors converted
vijayakumar sivaji
L10 bjt introduction s21617
L10 bjt introduction s21617
Muhammad Fiaz
Lecture 8 bjt_1
Lecture 8 bjt_1
Napex Terra
BIASING OF BJT
BIASING OF BJT
Prakash Rao
Bipolar Junction Transistor
Bipolar Junction Transistor
Yong Heui Cho
Chp1 1 bjt [read only]
Chp1 1 bjt [read only]
Muhamad Zolkepli
Bipolar Junction Transistor
Bipolar Junction Transistor
Prankit Mishra
(Latest) topic 4 bipolar_junction_transistors
(Latest) topic 4 bipolar_junction_transistors
Gabriel O'Brien
What's hot
(18)
Dc basimg
Dc basimg
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-5
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-5
14 feedback & oscillator circuits
14 feedback & oscillator circuits
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-15
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-15
17 pnpn and other devices
17 pnpn and other devices
Chapter17
Chapter17
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-1
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-1
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-9
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-9
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-12
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-12
Various configurations in BJT
Various configurations in BJT
Bjt transistors converted
Bjt transistors converted
L10 bjt introduction s21617
L10 bjt introduction s21617
Lecture 8 bjt_1
Lecture 8 bjt_1
BIASING OF BJT
BIASING OF BJT
Bipolar Junction Transistor
Bipolar Junction Transistor
Chp1 1 bjt [read only]
Chp1 1 bjt [read only]
Bipolar Junction Transistor
Bipolar Junction Transistor
(Latest) topic 4 bipolar_junction_transistors
(Latest) topic 4 bipolar_junction_transistors
Similar to Bem (6)
1- Bipolar Junction Transistors-2.ppt
1- Bipolar Junction Transistors-2.ppt
stcompenooraa
Bem (7)
Bem (7)
AmeerHamzaDurrani
BJT AC Analysis - Gdlc.pdf
BJT AC Analysis - Gdlc.pdf
ShanmukhSaiR
Bem (8)
Bem (8)
AmeerHamzaDurrani
Chapter 4 Boylstead DC Biasing-BJTs.pptx
Chapter 4 Boylstead DC Biasing-BJTs.pptx
AneesSohail1
Chapter3 p1
Chapter3 p1
mayank873
electronic-devices-and-circuit-theory-10th-edition-boylestad-louis-.pptx
electronic-devices-and-circuit-theory-10th-edition-boylestad-louis-.pptx
AbdullahTanweer1
11 op amp applications
11 op amp applications
Tony Mac Apple
Bem (4)
Bem (4)
AmeerHamzaDurrani
09 bjt & fet frequency response
09 bjt & fet frequency response
Tony Mac Apple
15 power supplies (voltage regulators)
15 power supplies (voltage regulators)
Tony Mac Apple
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-2
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-2
Shiwam Isrie
Lecture_02_Diode_Applications.ppt
Lecture_02_Diode_Applications.ppt
EfaFikadu
Bem (1)
Bem (1)
AmeerHamzaDurrani
12 power amplifirs
12 power amplifirs
Tony Mac Apple
13 linear digital i cs
13 linear digital i cs
Tony Mac Apple
Electronic Devices Ninth Edition Floyd thired e
Electronic Devices Ninth Edition Floyd thired e
mohdrashdan7
power point presentation on BJT for beginers
power point presentation on BJT for beginers
MalleshBY1
ec8353 Edc unit2
ec8353 Edc unit2
elakkia8
Basic electronics - Bi Junction Terminals 01.pptx
Basic electronics - Bi Junction Terminals 01.pptx
happycocoman
Similar to Bem (6)
(20)
1- Bipolar Junction Transistors-2.ppt
1- Bipolar Junction Transistors-2.ppt
Bem (7)
Bem (7)
BJT AC Analysis - Gdlc.pdf
BJT AC Analysis - Gdlc.pdf
Bem (8)
Bem (8)
Chapter 4 Boylstead DC Biasing-BJTs.pptx
Chapter 4 Boylstead DC Biasing-BJTs.pptx
Chapter3 p1
Chapter3 p1
electronic-devices-and-circuit-theory-10th-edition-boylestad-louis-.pptx
electronic-devices-and-circuit-theory-10th-edition-boylestad-louis-.pptx
11 op amp applications
11 op amp applications
Bem (4)
Bem (4)
09 bjt & fet frequency response
09 bjt & fet frequency response
15 power supplies (voltage regulators)
15 power supplies (voltage regulators)
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-2
Electronic devices-and-circuit-theory-10th-ed-boylestad-chapter-2
Lecture_02_Diode_Applications.ppt
Lecture_02_Diode_Applications.ppt
Bem (1)
Bem (1)
12 power amplifirs
12 power amplifirs
13 linear digital i cs
13 linear digital i cs
Electronic Devices Ninth Edition Floyd thired e
Electronic Devices Ninth Edition Floyd thired e
power point presentation on BJT for beginers
power point presentation on BJT for beginers
ec8353 Edc unit2
ec8353 Edc unit2
Basic electronics - Bi Junction Terminals 01.pptx
Basic electronics - Bi Junction Terminals 01.pptx
More from AmeerHamzaDurrani
English vocabulary 1
English vocabulary 1
AmeerHamzaDurrani
Englishsummary writing
Englishsummary writing
AmeerHamzaDurrani
English phrase clause
English phrase clause
AmeerHamzaDurrani
English3. phrases
English3. phrases
AmeerHamzaDurrani
Civilenggdrawingppx 170228111409
Civilenggdrawingppx 170228111409
AmeerHamzaDurrani
Civil engineering materials lab manual revised
Civil engineering materials lab manual revised
AmeerHamzaDurrani
Ce materials ce115-6-paints-1
Ce materials ce115-6-paints-1
AmeerHamzaDurrani
Ce materials ce107-8-concrete
Ce materials ce107-8-concrete
AmeerHamzaDurrani
Ce materials5. portland cement
Ce materials5. portland cement
AmeerHamzaDurrani
Ce materials2 types of cement lectures
Ce materials2 types of cement lectures
AmeerHamzaDurrani
Ce drawingsectional views
Ce drawingsectional views
AmeerHamzaDurrani
Ce drawing isometric projections
Ce drawing isometric projections
AmeerHamzaDurrani
Ce drawing[lab]fwddrawing project drawings part two
Ce drawing[lab]fwddrawing project drawings part two
AmeerHamzaDurrani
Ce drawing[lab]fwddrawing project drawings part one
Ce drawing[lab]fwddrawing project drawings part one
AmeerHamzaDurrani
Bem (5)
Bem (5)
AmeerHamzaDurrani
Bem (3)
Bem (3)
AmeerHamzaDurrani
Bem (2)
Bem (2)
AmeerHamzaDurrani
More from AmeerHamzaDurrani
(17)
English vocabulary 1
English vocabulary 1
Englishsummary writing
Englishsummary writing
English phrase clause
English phrase clause
English3. phrases
English3. phrases
Civilenggdrawingppx 170228111409
Civilenggdrawingppx 170228111409
Civil engineering materials lab manual revised
Civil engineering materials lab manual revised
Ce materials ce115-6-paints-1
Ce materials ce115-6-paints-1
Ce materials ce107-8-concrete
Ce materials ce107-8-concrete
Ce materials5. portland cement
Ce materials5. portland cement
Ce materials2 types of cement lectures
Ce materials2 types of cement lectures
Ce drawingsectional views
Ce drawingsectional views
Ce drawing isometric projections
Ce drawing isometric projections
Ce drawing[lab]fwddrawing project drawings part two
Ce drawing[lab]fwddrawing project drawings part two
Ce drawing[lab]fwddrawing project drawings part one
Ce drawing[lab]fwddrawing project drawings part one
Bem (5)
Bem (5)
Bem (3)
Bem (3)
Bem (2)
Bem (2)
Recently uploaded
ONLINE FOOD ORDER SYSTEM PROJECT REPORT.pdf
ONLINE FOOD ORDER SYSTEM PROJECT REPORT.pdf
Kamal Acharya
Call Girls Service Nagpur Tanvi Call 7001035870 Meet With Nagpur Escorts
Call Girls Service Nagpur Tanvi Call 7001035870 Meet With Nagpur Escorts
Call Girls in Nagpur High Profile
College Call Girls Nashik Nehal 7001305949 Independent Escort Service Nashik
College Call Girls Nashik Nehal 7001305949 Independent Escort Service Nashik
Call Girls in Nagpur High Profile
Booking open Available Pune Call Girls Koregaon Park 6297143586 Call Hot Ind...
Booking open Available Pune Call Girls Koregaon Park 6297143586 Call Hot Ind...
Call Girls in Nagpur High Profile
UNIT-II FMM-Flow Through Circular Conduits
UNIT-II FMM-Flow Through Circular Conduits
rknatarajan
The Most Attractive Pune Call Girls Manchar 8250192130 Will You Miss This Cha...
The Most Attractive Pune Call Girls Manchar 8250192130 Will You Miss This Cha...
ranjana rawat
Glass Ceramics: Processing and Properties
Glass Ceramics: Processing and Properties
Prabhanshu Chaturvedi
Call for Papers - African Journal of Biological Sciences, E-ISSN: 2663-2187, ...
Call for Papers - African Journal of Biological Sciences, E-ISSN: 2663-2187, ...
Christo Ananth
VIP Call Girls Ankleshwar 7001035870 Whatsapp Number, 24/07 Booking
VIP Call Girls Ankleshwar 7001035870 Whatsapp Number, 24/07 Booking
dharasingh5698
Structural Analysis and Design of Foundations: A Comprehensive Handbook for S...
Structural Analysis and Design of Foundations: A Comprehensive Handbook for S...
Dr.Costas Sachpazis
AKTU Computer Networks notes --- Unit 3.pdf
AKTU Computer Networks notes --- Unit 3.pdf
ankushspencer015
Top Rated Pune Call Girls Budhwar Peth ⟟ 6297143586 ⟟ Call Me For Genuine Se...
Top Rated Pune Call Girls Budhwar Peth ⟟ 6297143586 ⟟ Call Me For Genuine Se...
Call Girls in Nagpur High Profile
Water Industry Process Automation & Control Monthly - April 2024
Water Industry Process Automation & Control Monthly - April 2024
Water Industry Process Automation & Control
Call Girls in Nagpur Suman Call 7001035870 Meet With Nagpur Escorts
Call Girls in Nagpur Suman Call 7001035870 Meet With Nagpur Escorts
Call Girls in Nagpur High Profile
UNIT - IV - Air Compressors and its Performance
UNIT - IV - Air Compressors and its Performance
sivaprakash250
High Profile Call Girls Nagpur Meera Call 7001035870 Meet With Nagpur Escorts
High Profile Call Girls Nagpur Meera Call 7001035870 Meet With Nagpur Escorts
Call Girls in Nagpur High Profile
Porous Ceramics seminar and technical writing
Porous Ceramics seminar and technical writing
rakeshbaidya232001
High Profile Call Girls Nagpur Isha Call 7001035870 Meet With Nagpur Escorts
High Profile Call Girls Nagpur Isha Call 7001035870 Meet With Nagpur Escorts
ranjana rawat
Introduction to Multiple Access Protocol.pptx
Introduction to Multiple Access Protocol.pptx
upamatechverse
UNIT-V FMM.HYDRAULIC TURBINE - Construction and working
UNIT-V FMM.HYDRAULIC TURBINE - Construction and working
rknatarajan
Recently uploaded
(20)
ONLINE FOOD ORDER SYSTEM PROJECT REPORT.pdf
ONLINE FOOD ORDER SYSTEM PROJECT REPORT.pdf
Call Girls Service Nagpur Tanvi Call 7001035870 Meet With Nagpur Escorts
Call Girls Service Nagpur Tanvi Call 7001035870 Meet With Nagpur Escorts
College Call Girls Nashik Nehal 7001305949 Independent Escort Service Nashik
College Call Girls Nashik Nehal 7001305949 Independent Escort Service Nashik
Booking open Available Pune Call Girls Koregaon Park 6297143586 Call Hot Ind...
Booking open Available Pune Call Girls Koregaon Park 6297143586 Call Hot Ind...
UNIT-II FMM-Flow Through Circular Conduits
UNIT-II FMM-Flow Through Circular Conduits
The Most Attractive Pune Call Girls Manchar 8250192130 Will You Miss This Cha...
The Most Attractive Pune Call Girls Manchar 8250192130 Will You Miss This Cha...
Glass Ceramics: Processing and Properties
Glass Ceramics: Processing and Properties
Call for Papers - African Journal of Biological Sciences, E-ISSN: 2663-2187, ...
Call for Papers - African Journal of Biological Sciences, E-ISSN: 2663-2187, ...
VIP Call Girls Ankleshwar 7001035870 Whatsapp Number, 24/07 Booking
VIP Call Girls Ankleshwar 7001035870 Whatsapp Number, 24/07 Booking
Structural Analysis and Design of Foundations: A Comprehensive Handbook for S...
Structural Analysis and Design of Foundations: A Comprehensive Handbook for S...
AKTU Computer Networks notes --- Unit 3.pdf
AKTU Computer Networks notes --- Unit 3.pdf
Top Rated Pune Call Girls Budhwar Peth ⟟ 6297143586 ⟟ Call Me For Genuine Se...
Top Rated Pune Call Girls Budhwar Peth ⟟ 6297143586 ⟟ Call Me For Genuine Se...
Water Industry Process Automation & Control Monthly - April 2024
Water Industry Process Automation & Control Monthly - April 2024
Call Girls in Nagpur Suman Call 7001035870 Meet With Nagpur Escorts
Call Girls in Nagpur Suman Call 7001035870 Meet With Nagpur Escorts
UNIT - IV - Air Compressors and its Performance
UNIT - IV - Air Compressors and its Performance
High Profile Call Girls Nagpur Meera Call 7001035870 Meet With Nagpur Escorts
High Profile Call Girls Nagpur Meera Call 7001035870 Meet With Nagpur Escorts
Porous Ceramics seminar and technical writing
Porous Ceramics seminar and technical writing
High Profile Call Girls Nagpur Isha Call 7001035870 Meet With Nagpur Escorts
High Profile Call Girls Nagpur Isha Call 7001035870 Meet With Nagpur Escorts
Introduction to Multiple Access Protocol.pptx
Introduction to Multiple Access Protocol.pptx
UNIT-V FMM.HYDRAULIC TURBINE - Construction and working
UNIT-V FMM.HYDRAULIC TURBINE - Construction and working
Bem (6)
1.
Chapter 3: Bipolar Junction
Transistors
2.
Transistor Construction Transistor Construction There
are two types of transistors: • pnp • npn The terminals are labeled: • E - Emitter pnp pnp Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky • E - Emitter • B - Base • C - Collector npn npn 2 2
3.
Transistor Operation Transistor Operation With
the external sources, VEE and VCC, connected as shown: • The emitter-base junction is forward biased • The base-collector junction is reverse biased Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky 3 3
4.
Currents in a
Transistor Currents in a Transistor The collector current is comprised of two B I C I E I + + + + = = = = Emitter current is the sum of the collector and base currents: Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky The collector current is comprised of two currents: minority CO I majority C I C I + = 4 4
5.
Common Common- -Base Configuration Base Configuration Copyright
©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky The base is common to both input (emitter–base) and output (collector–base) of the transistor. 5 5
6.
Common Common- -Base Amplifier Base Amplifier Input
Characteristics Input Characteristics This curve shows the relationship between of input current (IE) to input voltage (VBE) for three output voltage Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky voltage (VBE) for three output voltage (VCB) levels. 6 6
7.
This graph demonstrates the
output current (IC) to an output voltage (VCB) for Common Common- -Base Amplifier Base Amplifier Output Characteristics Output Characteristics Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky an output voltage (VCB) for various levels of input current (IE). 7 7
8.
Operating Regions Operating Regions •
Active – Operating range of the amplifier. • Cutoff – The amplifier is basically off. There is voltage, but little current. Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky current. • • Saturation – The amplifier is full on. There is current, but little voltage. 8 8
9.
E I C I ≅ Approximations Approximations Emitter and
collector currents: Base-emitter voltage: Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky Silicon) (for V 0.7 BE V = 9 9
10.
Ideally: α α α α =
1 Alpha ( Alpha (α α α α α α α α) ) Alpha (α α α α) is the ratio of IC to IE : E I C I α = dc Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky Ideally: α α α α = 1 In reality: α α α α is between 0.9 and 0.998 Alpha (α α α α) in the AC mode AC mode: E I C I α ∆ ∆ ac = 10 10
11.
Transistor Amplification Transistor Amplification Copyright
©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky Voltage Gain: V 50 kΩ 5 ma 10 mA 10 10mA 20Ω 200mV = = = = ≅ ≅ = = = = ) )( ( R L I L V i I L I E I C I i R i V i I E I Currents and Voltages: 11 11 250 200mV 50V = = = i V L V v A
12.
Common Common– –Emitter Configuration Emitter Configuration The
emitter is common to both input (base-emitter) and output (collector- emitter). Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky The input is on the base and the output is on the collector. 12 12
13.
Common Common- -Emitter Characteristics Emitter Characteristics Copyright
©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky Collector Characteristics Base Characteristics 13 13
14.
Common Common- -Emitter Amplifier Currents Emitter
Amplifier Currents Ideal Currents Ideal Currents IE = IC + IB IC = α α α α IE Actual Currents Actual Currents IC = α α α α IE + ICBO where ICBO = minority collector current Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky IC = α α α α IE + ICBO When IB = 0 µ µ µ µA the transistor is in cutoff, but there is some minority current flowing called ICEO. µA 0 = − = B I CBO CEO α I I 1 where ICBO = minority collector current 14 14 ICBO is usually so small that it can be ignored, except in high power transistors and in high temperature environments.
15.
Beta ( Beta (β β β β β β β β) ) In
DC mode: β β β β represents the amplification factor of a transistor. (β β β β is sometimes referred to as hfe, a term used in transistor modeling calculations) C I β = dc Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky In AC mode: B I β = dc constant ac = ∆ ∆ = CE V B C I I β 15 15
16.
Determining β β β β from
a Graph Beta ( Beta (β β β β β β β β) ) 100 µA 10 mA 1 µA) 20 µA (30 mA) 2.2 mA (3.2 β 7.5 V AC CE = = = = = = = = − − − − − − − − = = = = = = = = Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky 108 A 25 mA 2.7 β 7.5 V DC CE = = = = µ µ µ µ = = = = = = = = 100 = = = = 16 16
17.
Relationship between amplification
factors β β β β and α α α α 1 β β α + + + + = = = = 1 α α β − − − − = = = = Beta ( Beta (β β β β β β β β) ) Relationship Between Currents Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky Relationship Between Currents B C βI I = = = = B E 1)I (β I + + + + = = = = 17 17
18.
Common Common– –Collector Configuration Collector Configuration The
input is on the base and the output is on the emitter. Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky 18 18
19.
Common Common– –Collector Configuration Collector Configuration The
characteristics are similar to those of the common-emitter Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky common-emitter configuration, except the vertical axis is IE. 19 19
20.
VCE is at
maximum and IC is at minimum (ICmax= ICEO) in the cutoff region. IC is at maximum and VCE is at minimum (VCE max = VCEsat = VCEO) in Operating Limits for Each Configuration Operating Limits for Each Configuration Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky minimum (VCE max = VCEsat = VCEO) in the saturation region. The transistor operates in the active region between saturation and cutoff. 20 20
21.
Power Dissipation Power Dissipation C CB Cmax
I V P = = = = C CE Cmax I V P = = = = Common-base: Common-emitter: Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky Common-collector: E CE Cmax I V P = = = = 21 21
22.
Transistor Specification Sheet Transistor
Specification Sheet Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky 22 22
23.
Transistor Specification Sheet Transistor
Specification Sheet Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky 23 23
24.
Transistor Testing Transistor Testing • •
Curve Tracer Curve Tracer Provides a graph of the characteristic curves. • • DMM DMM Some DMMs measure β β β βDC or hFE. • • Ohmmeter Ohmmeter Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky 24 24
25.
Transistor Terminal Identification Transistor
Terminal Identification Copyright ©2009 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 • All rights reserved. Electronic Devices and Circuit Theory, 10/e Robert L. Boylestad and Louis Nashelsky 25 25
Download now