Computer Aided Design Of Gate Turn Off Thyristor

Abstract

Recent progressing efforts in industrial electronics demands developing CAD models for both manufacturers and system designers. GTO is a very important power devices used in many fields of applications due to its nature the simulation of the device dcpend on physical models and needs a special software to solve mathematical equations describing the behavior of the device 2-D model. The main disadvantages of these software are there limited source codes and difficult languages. In this thesis we develop 2-D macro model using the general and famous CAD - tools like SPICE. With a precise technique of parameter extraction our model gives accurate results in both static and dynamic behavior at low and high frequency up to 110 kHZ. Also we present the usual I-D model. With these precise parameters the 1-D model provides very efficient results from DC up to 70 kHZ .This thesis fill the gap between the physical models and macro models.