Study of the voltage drop process for the case of high-power thyristors switched in the impact-ionization mode
- Авторы: Gusev A.1,2, Lyubutin S.1, Rukin S.1, Tsyranov S.1,2
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Учреждения:
- Institute of Electrophysics, Ural Branch
- Ural Federal University after the first President of Russia B.N. Yeltsin
- Выпуск: Том 51, № 5 (2017)
- Страницы: 649-656
- Раздел: Physics of Semiconductor Devices
- URL: https://journals.rcsi.science/1063-7826/article/view/199912
- DOI: https://doi.org/10.1134/S1063782617050098
- ID: 199912
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Аннотация
The voltage drop process for the case of high-power thyristors switched to the conducting state by an impact-ionization wave excited by means of an overvoltage pulse with a nanosecond rise time is studied. In experiments, a voltage with a rise rate dU/dt in the range of 0.5 to 6 kV/ns is applied to a thyristor with an operating voltage of 2 kV. Numerical simulation shows that the calculated and experimentally observed voltage drop times are in quantitative agreement only when the structure active area through which the switching current flows depends on dU/dt. The active area increases with dU/dt and with increasing initial silicon resistivity. In this case, the active area steadily approaches the total structure area at dU/dt > 12 kV/ns.
Об авторах
A. Gusev
Institute of Electrophysics, Ural Branch; Ural Federal University after the first President of Russia B.N. Yeltsin
Email: rukin@iep.uran.ru
Россия, ul. Amundsena 106, Yekaterinburg, 620016; ul. Mira 19, Yekaterinburg, 620002
S. Lyubutin
Institute of Electrophysics, Ural Branch
Email: rukin@iep.uran.ru
Россия, ul. Amundsena 106, Yekaterinburg, 620016
S. Rukin
Institute of Electrophysics, Ural Branch
Автор, ответственный за переписку.
Email: rukin@iep.uran.ru
Россия, ul. Amundsena 106, Yekaterinburg, 620016
S. Tsyranov
Institute of Electrophysics, Ural Branch; Ural Federal University after the first President of Russia B.N. Yeltsin
Email: rukin@iep.uran.ru
Россия, ul. Amundsena 106, Yekaterinburg, 620016; ul. Mira 19, Yekaterinburg, 620002