Static induction thyristor explained
The static induction thyristor (SIT, SITh) is a thyristor with a buried gate structure in which the gate electrodes are placed in n-base region. Since they are normally on-state, gate electrodes must be negatively or anode biased to hold off-state.[1] It has low noise, low distortion, high audio frequency power capability. The turn-on and turn-off times are very short, typically 0.25 microseconds.[2] [3] [4]
History
The first static induction thyristor was invented by Japanese engineer Jun-ichi Nishizawa in 1975.[5] It was capable of conducting large currents with a low forward bias and had a small turn-off time. It had a self controlled gate turn-off thyristor that was commercially available through Tokyo Electric Co. (now Toyo Engineering Corporation) in 1988. The initial device consisted of a p+nn+ diode and a buried p+ grid.
In 1999, an analytical model of the SITh was developed for the PSPICE circuit simulator.[6] In 2010, a newer version of SITh was developed by Zhang Caizhen, Wang Yongshun, Liu Chunjuan and Wang Zaixing, the new feature of which was its high forward blocking voltage.[7]
See also
External links
Notes and References
- Book: Study of 40 A / 1000 V static induction thyristor (SITH). 1994. 1. 205–208. Li, Siyuan. Liu Su. Yang, Jianhong. Sang, Baosheng. Liu, Ruixi. International Academic Publishers. Beijing, China. 978-7-80003-315-5.
- Static induction thyristor. J. Nishizawa. K. Nakamura. Revue de Physique Appliquée. 1978. 13. 12. 725–728. 10.1051/rphysap:019780013012072500.
- ChunJuan Liu. Su Liu. YaJie Bai. Switching performances of static induction thyristor with buried-gate structure. Science China Information Sciences. 2014. 57. 6. 1–6. 10.1007/s11432-013-4955-x. free.
- Study of Switching Characteristics of Static Induction Thyristor for Pulsed Power Applications. Bongseong Kim. Kwang-Cheol Ko. Eiki Hotta. IEEE Transactions on Plasma Science. 39. 5. 2011. 901–905. 10.1109/TPS.2010.2099242. 0093-3813. 1939-9375. 630064521. 2011ITPS...39..901K. 32745943 .
- Book: Electronic Inventions and Discoveries: Electronics from its earliest beginnings to the present day, Fourth Edition. 9780750304931. a Drummer. G. W.. January 1997. CRC Press .
- J. Wang. B.W. Williams. A new static induction thyristor (SITh) analytical model. IEEE Transactions on Power Electronics. 1999. 14. 5. 866–876. 10.1109/63.788483. 1941-0107. 1004551313. 1999ITPE...14..866W.
- Zhang Caizhen. Wang Yongshun. Liu Chunjuan. Wang Zaixing. A new static induction thyristor with high forward blocking voltage and excellent switching performances. Journal of Semiconductors. 31. 034005. 3. 2010. 10.1088/1674-4926/31/3/034005. 250665918 . 1674-4926. 827111246.
