An 8.5kV Sacrificial Bypass Thyristor with Unprecedented Rupture Resilience

Wikström, T.; Odegard, Bjom; Baumann, Remo

doi:10.1109/ispsd.2019.8757563

Cited by 3 publications

(1 citation statement)

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“…LTTs are meant to be triggered using an optical signal instead of an electrical signal [9][10][11][12][13][14][15][16]. However, most LTTs are each composed of two parts, one of which is of low power and the other is of high power, and the two parts are triggered oneby-one in a cascade manner: only after the low-power part is optically triggered ON, is the high-power part electrically triggered into ON state [17][18][19][20][21]. Such cascade triggering inherently deteriorates the turn-on process as a whole [22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Direct-Triggering LTT With Monolithic Structure

Yin

Bai

Shi

et al. 2022

IEEE J. Electron Devices Soc.

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Light-triggered thyristor (LTT) has attracted considerable interest in power conversion and control systems because of its strong antiinterference ability and large power capacity. In this work, we propose a monolithic LTT that can be lighttriggered directly without an amplifying gate (AG) design, to improve the device reliability and operating speed. The cathode structure is redesigned into an interdigitated structure with a relatively large light-incident area. The cathode shorts are re-arranged to balance the trigger intensity and the light incident depth, so as to ensure optimal dV/dt capability. Devices are fabricated and adequate performances are obtained, verifying the feasibility of our design.

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