Chapter 5 Transistor Bias Circuit - PowerPoint PPT Presentation


Title: Chapter 5 Transistor Bias Circuit


1
Chapter 5 Transistor Bias Circuit
2
DC Bias
  • Bias establishes the dc operating point (Q-point)
    for proper linear operation of an amplifier.

3
Collector Characteristic Curves
4
DC Load Line
5
Operating Point (Q points)
6
Linear Operation
7
Symbol
  • Only DC Quantaties
  • VBE
  • Coupled AC Quantaties

  • Vbe

Upper case
Upper case subscription
Upper case
lower case subscription
8
Linear Operation
9
Calculate Q points
  • Calculate
  • Assumption when calculate Q -points

10
Emitter Bias
11
Base Bias
12
Emitter-Feedback Bias
Base Bias
Emitter Feedback Bias
13
Emitter Feedback Bias
14
Collector Feedback Bias
Base Bias
Collector Feedback Bias
15
Collector Feedback Bias
16
Voltage Divider Bias
17
Voltage Divider Bias
18
Voltage Divider Bias
19
Voltage Divider Bias
20
Voltage Divider Bias
  • Stiff voltage divide

Stiff
Stiff
Criterion for Stiff
21
Stiff Voltage Divider Bias
22
Voltage Divider Bias
  • Procedure for analyze voltage divider bias
  • Check stiffness
  • If Stiff
    else

  • Thevenin equivalent
    circuit
View by Category
About This Presentation
Title:

Chapter 5 Transistor Bias Circuit

Description:

Chapter 5 Transistor Bias Circuit DC Bias Bias establishes the dc operating point (Q-point) for proper linear operation of an amplifier. Collector Characteristic ... – PowerPoint PPT presentation

Number of Views:136
Avg rating:3.0/5.0
Slides: 23
Provided by: 4518
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Chapter 5 Transistor Bias Circuit


1
Chapter 5 Transistor Bias Circuit
2
DC Bias
  • Bias establishes the dc operating point (Q-point)
    for proper linear operation of an amplifier.

3
Collector Characteristic Curves
4
DC Load Line
5
Operating Point (Q points)
6
Linear Operation
7
Symbol
  • Only DC Quantaties
  • VBE
  • Coupled AC Quantaties

  • Vbe

Upper case
Upper case subscription
Upper case
lower case subscription
8
Linear Operation
9
Calculate Q points
  • Calculate
  • Assumption when calculate Q -points

10
Emitter Bias
11
Base Bias
12
Emitter-Feedback Bias
Base Bias
Emitter Feedback Bias
13
Emitter Feedback Bias
14
Collector Feedback Bias
Base Bias
Collector Feedback Bias
15
Collector Feedback Bias
16
Voltage Divider Bias
17
Voltage Divider Bias
18
Voltage Divider Bias
19
Voltage Divider Bias
20
Voltage Divider Bias
  • Stiff voltage divide

Stiff
Stiff
Criterion for Stiff
21
Stiff Voltage Divider Bias
22
Voltage Divider Bias
  • Procedure for analyze voltage divider bias
  • Check stiffness
  • If Stiff
    else

  • Thevenin equivalent
    circuit
About PowerShow.com