Fundamentals of Industrial Electronics

4

Transistor Operation and Modeling

Tina Hudson

Rose-Hulman Institute of Technology

4.1      Introduction

4.2      Transistor Operation and Characterization

MOSFET Operation and Characterization • BJT Operation and Characterization • FETs versus BJTs

4.1      Introduction

Transistors are the fundamental building blocks of microelectronic circuits. They are used in both analog and digital circuits. In digital circuits, they can be thought of as voltage-gated switches. In analog circuits, they can be thought of as transconductance (voltage-to-current) amplifiers. There are many different types of transistors, determined by the material it has been made from, the underlying physics of operation, and the primary carrier creating current in the device. ...