A 115-mm Ø 6-kV 2500-A light-triggered thyristor has been developed for high power converter applications such as static var compensator (SVC). The large diameter high-voltage high-current light-triggered thyristor is achieved by ion implantation, large-diameter-element treatment, and cathode pattern design techniques. Such techniques and electrical characteristics of the newly developed light-triggered thyristor are described here. The device has on-state voltage of 3.0 V at 7800 A, minimum lighttriggering power of 10 mW, dv/dt capability of more than 3000 V/μs, di/dt capability of more than 300 A/μs, and turn off time of less than 400 ps.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering