Introduction to the Transistor

Chapter CHAPTER 3 Introduction to the Transistor

Complete Electronics Self Teaching Guide with Projects
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Complete Electronics Self Teaching Guide with Projects

  • 3Introduction to the TransistorThe transistor is undoubtedly the most important modern electronic component because it has enabled great and profound changes in electronics and in your daily lives since its discovery in 1948.This chapter introduces the transistor as an electronic component that acts similarly to a simple mechanical switch, and it is actually used as a switch in many modern electronic devices. A transistor can be made to conduct or not conduct an electric current—exactly what a mechanical switch does.Most transistors used in electronic circuits are bipolar junction transistors (BJTs), commonly referred to as bipolar transistors junction field effect transistors (JFETs) or metal oxide silicon field effect transistors (MOSFETs). This chapter (along with Chapter 4, Book Authorc03V107/04/2012 2:56 PM c03.indd 917/4/2012 3:04:22 PM