ABSTRACT
The modern age of power electronics began with the introduction of thyristors in the late 1950s [1]. There are now a number of power devices available for high-power and high-frequency applications. The most notable include:
• Gate turn-off (GTO) thyristor • Power Darlington transistor • Power MOSFET • Insulated-gate bipolar transistor (IGBP)
These power devices are used primarily as switches to convert energy from one form to another. They are used in motor control systems, uninterruptible power supplies, high-voltage dc transmission, ac-to-dc power supplies, induction heating, and other power-conversion applications.
