Title :
An autoprotecting gate drive circuit for GTO thyristors
Author :
Biswas, Sujit K. ; Basak, Biswarup ; Vithayathil, Joseph
Author_Institution :
Dept. of Electr. Eng., Jadavpur Univ., Calcutta, India
Abstract :
The authors present a gate drive circuit for gate turn-off thyristors which provides the combined functions of reliable switching, overcurrent protection to the device through on-state voltage monitoring, self-protection of the drive circuit by isolation against damage due to high voltage in the event of gate turn-off destruction, and galvanic isolation with good common mode rejection. The implementation details of the drive circuit used in conjunction with a gate turn-off thyristor chopper are included
Keywords :
choppers (circuits); overcurrent protection; thyristor applications; GTO thyristors; autoprotecting gate drive circuit; common mode rejection; gate turn-off destruction; on-state voltage monitoring; overcurrent protection; switching; thyristor chopper; Choppers; Circuit testing; Galvanizing; Industry Applications Society; Monitoring; Power semiconductor switches; Protection; Switching circuits; Thyristors; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
