project needed on transistor as a switch pdf

Introduction

As one of the important semiconductor devices, the transistor has got use in heavy electronic applications such as embedded systems, digital circuits and control systems. Both digital and analog domain transistors are widely used for various applications such as amplification, logic operations, switching etc. This article gives a brief explanation of the transistor application and gives it mainly as a switch. Bipolar junction transistor or Bus Busetty is a three layer, three terminals and two junction semiconductor devices. In almost all applications, these transistors are used for two basic functions such as switching and amplification. The name bipolar indicates that two types of charge carriers are involved in the work of a BJT. These two charge carriers are holes and electrons where the holes are positive charge carriers and the electron is the negative charge carrier.