Summary
A thyristor can be turned on not only by the application of the gate current, but also by such mechanisms as the thermal effect carrier generation by radiation, or the application of rapidly rising and/or very high forward potential. The thermal effect and the dv/dt effects are undesirable in thyristors. Light irradiation, if so desired, may be utilized in light-activated switches.
The best technique to improve thyristor capability from the operating temperature and dv/dt point of view is to use the so-called “shorted” emitter which bypasses the thermal and displacement currents and makes the device less sensitive to these effects.
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© 1976 Springer-Verlag New York Inc.
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Blicher, A. (1976). Nongated, undesirable thyristor triggering. In: Thyristor Physics. Applied Physics and Engineering, vol 12. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-9877-9_6
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DOI: https://doi.org/10.1007/978-1-4612-9877-9_6
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