General Purpose, Fast Recovery and Schottky Diodes

Explained the types of power diodes and their constructional and working differences.

1. POWER DIODE
CLASSIFICATION OF
By Samra Gul
Roll no# 21/F-ES-05
Section: ‘A’
Presented To: Sir Arsalan Ansari

2. CONTENTS
Introduction
General Purpose Diode
Fast Recovery Diode
1
2
3
4
5
6
Constructional & Working
Difference
Schottky Diode
Comparison

3. Welcome and thank you for joining my
presentation on power diodes.
We will explore the constructional and
working differences between three
common types of power diodes: General
Purpose, Fast Recovery, and Schottky.
INTRODUCTION

4. GENERAL PURPOSE DIODE
Composed of a P-N junction with a single
semiconductor material.
CONSTRUCTION:
Designed for general rectification and switching
applications, with moderate switching speed.
WORKING:
APPLICATION:
Composed of a P-N junction with a single
semiconductor material.

5. FAST RECOVERY DIODE
Utilizes special epitaxial layers to reduce
recovery time.
CONSTRUCTION:
Designed for faster switching by minimizing
reverse recovery time.
WORKING:
APPLICATION:
Ideal for high-frequency applications, such as
switching power supplies and inverters.

6. SCHOTTKY DIODE
Combines a metal and semiconductor junction,
resulting in lower voltage drop.
CONSTRUCTION:
Offers very fast switching speed and lower
forward voltage drop.
WORKING:
APPLICATION:
Used in high-speed rectification, voltage
clamping, and high-frequency RF applications.

7. SchottkyFast RecoveryGeneral Purpose
Fast Recovery
diodes have
additional layers
to reduce
recovery time.
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Constructional
Differences
General
Purpose
diodes are
simple P-N
junction
diodes.
Schottky diodes
have a metal-
semiconductor
junction,
reducing voltage
drop.

8. SchottkyFast Recovery
General Purpose
Fast Recovery
diodes minimize
reverse recovery
time for faster
switching.
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amet, consectetur
adipiscing elit. Sed
non orci hendrerit
augue interdum
lacinia at egestas
dolor. Vivamus
elementum pulvinar
tempus.
Lorem ipsum dolor sit
amet, consectetur
adipiscing elit. Sed
non orci hendrerit
augue interdum
lacinia at egestas
dolor. Vivamus
elementum pulvinar
tempus.
Working
Differences
General
Purpose
diodes offer
moderate
switching
speed.
Schottky diodes
provide very fast
switching and
low forward
voltage drop.

9. COMPARISON
General Purpose diodes are
versatile but have moderate
performance and exhibit
standard forward voltage
drops.
GENERAL PURPOSE
Fast Recovery diodes are
optimized for speed,
reducing reverse recovery
time, but may have slightly
higher forward voltage drops
compared to General
Purpose diodes.
FAST RECOVERY
Schottky diodes excel in
high-speed applications with
their ultra-low forward
voltage drop, but they have
limited reverse voltage
capabilities.
SCHOTTKY

10. CONCLUSION
General Purpose, Fast Recovery, and Schottky diodes serve
different purposes.
Constructional and working differences make each diode
suitable for specific applications.
Careful diode selection is crucial for efficient electronic
circuit design.

11. THANK
YOU