Current Through A P-N Junction - Breakdown

Slide 1

Topic: Current Through a P-N Junction - Breakdown "

Slide 2

Introduction to p-n junction
Definition and construction of p-n junction
Characteristics of p-n junction
Symbol representation of p-n junction
Basic principle of p-n junction "

Slide 3

What is current through a p-n junction?
Types of current in a p-n junction
Forward bias current
Reverse bias current
Equation for total current
Explanation of total current equation "

Slide 4

Forward bias current in p-n junction
Definition of forward bias
Explanation of forward bias current flow
Example of forward bias current "

Slide 5

Reverse bias current in p-n junction
Definition of reverse bias
Explanation of reverse bias current flow
Example of reverse bias current "

Slide 6

Breakdown in a p-n junction
Definition of breakdown
Types of breakdown: Zener breakdown and avalanche breakdown
Explanation of Zener breakdown
Explanation of avalanche breakdown "

Slide 7

Zener breakdown in detail
Explanation of Zener breakdown mechanism
Voltage characteristics during Zener breakdown
Example of Zener breakdown "

Slide 8

Avalanche breakdown in detail
Explanation of avalanche breakdown mechanism
Voltage characteristics during avalanche breakdown
Example of avalanche breakdown "

Slide 9

Comparison between Zener breakdown and avalanche breakdown
Difference in breakdown mechanisms
Difference in voltage characteristics
Comparison in terms of applications "

Slide 10

Conclusion of current through a p-n junction - breakdown
Recap of key points
Importance and applications in various electronic devices
Next topic: Semiconductor Devices - Diodes

Slide 11

Recap of p-n junction and its characteristics
Importance of p-n junction in electronic devices
Definition and explanation of current through a p-n junction
Types of current flow in a p-n junction: forward bias and reverse bias
Equation for total current through a p-n junction "

Slide 12

Review of forward bias current flow in a p-n junction
Definition and explanation of forward bias
Mechanism of current flow during forward bias
Relationship between applied voltage and forward bias current
Example of forward bias current calculation "

Slide 13

Review of reverse bias current flow in a p-n junction
Definition and explanation of reverse bias
Mechanism of current flow during reverse bias
Relationship between applied voltage and reverse bias current
Example of reverse bias current calculation "

Slide 14

Introduction to breakdown in a p-n junction
Definition and explanation of breakdown
Types of breakdown in a p-n junction: Zener breakdown and avalanche breakdown
Difference between Zener breakdown and avalanche breakdown
Importance and applications of breakdown in electronic devices "

Slide 15

In-depth explanation of Zener breakdown
Mechanism of Zener breakdown
Voltage characteristics during Zener breakdown
Application and importance of Zener diodes
Example of Zener breakdown in a p-n junction "

Slide 16

In-depth explanation of avalanche breakdown
Mechanism of avalanche breakdown
Voltage characteristics during avalanche breakdown
Application and importance of avalanche diodes
Example of avalanche breakdown in a p-n junction "

Slide 17

Discussion on the differences between Zener breakdown and avalanche breakdown
Difference in breakdown mechanisms
Difference in voltage characteristics
Comparison of applications and advantages/disadvantages "

Slide 18

Importance and applications of breakdown in electronic devices
Usage of breakdown in voltage regulation and protection circuits
Examples of devices that utilize breakdown: Zener diodes, avalanche diodes, voltage regulators
Real-world applications: power supplies, surge protectors, voltage stabilizers "

Slide 19

Conclusion of the topic “Current Through a P-N Junction - Breakdown”
Recap of key points covered in the lecture
Significance of understanding p-n junctions and breakdown in electronics
Next topic: Semiconductor Devices - Diodes and Transistors
Open for questions and discussion "

Slide 20

Example problem: Calculate the forward bias current in a p-n junction with a voltage of 2 V applied
Solution: Using the equation for total current, calculate the forward bias current knowing the voltage and other parameters
Walk through the calculation step by step
Discuss the significance of the calculated current value
Encourage students to try similar problems for practice

Slide 21

Example problem: Calculate the reverse bias current in a p-n junction with a voltage of 5 V applied
Solution: Use the equation for total current to calculate the reverse bias current given the applied voltage and other parameters
Walk through the calculation step by step
Discuss the significance of the calculated current value
Encourage students to try similar problems for practice

Slide 22

Example problem: Determine the breakdown voltage of a Zener diode given its specifications
Solution: Explain the method to calculate the breakdown voltage based on the diode’s characteristics
Walk through the calculation process
Discuss the importance of knowing the breakdown voltage in circuit design
Encourage students to practice similar calculations

Slide 23

Example problem: Calculate the avalanche voltage of an avalanche diode based on its specifications
Solution: Explain the formula to calculate the avalanche voltage using the diode’s properties
Walk through the calculation step by step
Discuss the significance of the calculated avalanche voltage
Encourage students to try similar problems for practice

Slide 24

Practical applications of Zener diodes
Voltage regulation using Zener diodes
Zener diodes as voltage references
Zener diode as a shunt regulator
Examples of electronic devices utilizing Zener diodes

Slide 25

Practical applications of avalanche diodes
Surge protectors and transient voltage suppressors
High voltage measurement circuits
Avalanche diode as a trigger for electronic circuits
Examples of devices utilizing avalanche diodes

Slide 26

Importance of understanding breakdown in p-n junctions
Significance in electronic circuit design
Protection against voltage surges and transients
Voltage regulation and stabilization
Ensuring reliable and efficient operation of electronic devices

Slide 27

Introduction to semiconductor devices - diodes
Definition and explanation of a diode
Basic construction and characteristics of a diode
Applications and importance of diodes in electronic circuits
Next topic: Semiconductor Devices - Transistors

Slide 28

Recap of the key points covered in the lecture
Importance of understanding current through a p-n junction and breakdown
Brief overview of forward bias and reverse bias current flow
Discuss the significance of breakdown in p-n junctions
Next steps: Transistors and further exploration of semiconductor devices

Slide 29

Open for questions and discussion
Address any queries or concerns from students regarding the topic
Encourage active participation and engagement
Provide additional explanations or examples if necessary

Slide 30

Thank you for attending the lecture on current through a p-n junction - breakdown
Recap the main takeaways from the lecture
Encourage students to review the material and seek further clarification if needed
Provide feedback or suggestions for improvement
End the presentation on a positive note

Slide 1 Topic: Current Through a P-N Junction - Breakdown "