Introduction to Power Semiconductor Switches (Coursera)

It is the first course in the "Semiconductor Power Device" specialization that focusses on diodes, MOSFETs, IGBT but also covers legacy devices (BJTs, Thyristors and TRIACS) as well as state-of-the-art devices such as silicon carbide (SiC) Schottky diodes and MOSFETs as well as Gallium Nitride (GaN) HEMTs. The specialization provides an overview of devices, the physics background needed to understand the device operation, the construction of a device circuit model from a physical device model and a description of the device fabrication technology including packaging.
This first course provides an introduction to semiconductor power switches, including a classification based on power switch properties, a description of key power switches, an overview of device data sheets, and the identification of on-state and power losses of diodes and MOSFET individually and in a power convertor circuit. It provides the link between power converter applications and individual devices, through analysis and simulation and prepares learners for the in-depth device analysis of the other courses in the specialization.

What You Will Learn

• Basic understanding of semiconductor power switches
• Modeling and simulation of semiconductor power switches

Syllabus

WEEK 1
Power semiconductor device basics
This module explains 1) the need for power conversion using a grid-connected solar system with storage and an electric vehicle as examples, 2) lists common power conversion circuits and their device requirements, and 3) provides an overview of different power device characteristics.

WEEK 2
Key power semiconductor devices
This module introduces key power switches: Diodes, MOSFETs and IGBTs as well as a brief introduction to other power devices including a first comparison.

WEEK 3
Power device data sheets
This module covers typical device data sheet characteristics including 1) DC nominal and maximum values, 2) Switching parameters and 3) Temperature dependence and maximum allowed temperatures

WEEK 4
Power device losses in switching circuits
This modules shows how to identify power dissipation in 1) individual diodes and MOSFETs and 2) in a boost convertor circuit containing both a diode and MOSFET