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1600V, 300A STATIC INDUCTION (SI) THYRISTOR
J.Nishizawa,K.Muraoka,Y.Ohtsubo,K.Yoshioka 전력전자학회 1989 ICPE(ISPE)논문집 Vol.- No.-
Static Induction (SI) thyristors were invented by NISHIZAWA in 1973 (I). Since then, intensive researches have been made to put them into practice in various fields as large power devices (2) {3). Among them, 1200V, 300A SI thyristor has been developed to be applied to a high frequency application equipment (4). This device has bee applied to develop a high frequency inverter (6), active filter {7), current source high frequency inverter (8), etc. These applications proved that the items of device tosses considerably varied depending on the circuit design and operation mode of the voltage source inverter, current source inverter and an e-quipment using a resonance circuit. It is expected, therefore, that a device be designed to meet a particular circuit and operation mode to improve the equipment conversion efficiency. We have recently developed two types of 1600V, 300A class SI thyris-tors whose peak turn-off current is 800A so as to apply them to the voltage source and current source inverters for PWM circuit and for resonance circuit respectively. Their device characteristics will be outlined as follows .