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CHAPTER 1
Introduction To Diodes
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OBJECTIVES
Describe and Analyze:
• Function of Diodes
• Some Physics of Diodes • Diode Models
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Introduction
•Diodes let current flow one way, but not the other
•Conventional current flows from anode to cathode
•Electrons flow from cathode to anode
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Diodes are Important
• The humble silicon diode is the simplest of all the semiconductor devices. It is also one of the most important. Without diodes, you could not build electronic equipment
• Applications for diodes range from power supplies to cell phones and everything in between.
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Diodes are Important
• It’s important to understand what a diode is and what makes it work.
• Diodes use a PN junction. Later, we will see how PN junctions play a key role in transistors.
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