Basic Electronics

8

Special Semiconductor Devices

Outline

8-1 Introduction

8-2 Silicon-Controlled Rectifier (SCR)

8-3 Triode AC Switch (TRIAC)

8-4 Diode AC Switch (DIAC)

8-5 Unijunction Transistor (UJT)

8-6 Insulated-Gate Bipolar Transistor (IGBT)

8-7 Real-Life Applications

Objectives

In this chapter various semiconductor devices are dealt with in detail. Power electronic devices play a major role in modern electronic design. High-power semiconductor devices have better switching speed, they are smaller in size and cost of production is also low. The silicon-controlled rectifier (SCR), an important special semiconductor device that is used as a power-control device, is discussed with emphasis on the constructional features, physical operations and characteristics, ...