| Abstract |
This paper describes the static and switching characteristics of the Gate Turn Off Thyristor (GTO) analyzed with a SPICE model. Taking wide use into consideration, PSpice has been chosen among the SPICE "family". The examined GTO has an anode short emitter structure, and its repetitive peak off-state voltage is 1200V , repetitive controllable on-state current 20A respectively . An equivalent circuit of the GTO model is one dimensional and derived from the transistor model of the Gummel-Poon scheme considering impurity concentration and structure of the device. For the purpose of evaluating the device model, some measurements of the device characteristics such as the on-state voltage, holding current, gate trigger current and turn-off time are performed. Finally, the measured and calculated results are compared and it is verified that they show sufficient agreement. |
