Summary
Heat is generated in a thyristor when it is in either the blocking or the conducting mode. In the first case, the heat generation takes place primarily at the reverse-biased blocking junction. For the case of forward conduction, it is customary to assume (for simplification) that the heat is generated in the thyristor in the plane passing through the device center and parallel to the center junction.
The maximum allowable thyristor dissipation is determined by the maximum permissible junction temperature and the device’s thermal resistance. A generalized thermal impedance concept has been introduced in order to establish maximum dissipation limits during such transient conditions as the turn on, turn off, and current surges.
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Also of interest
W. E. Newell. Transient thermal analysis of solid state power devices— Making a dreaded process easy. PESC Record, 1975, pp. 761–770.
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© 1976 Springer-Verlag New York Inc.
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Blicher, A. (1976). Thyristor thermal response. In: Thyristor Physics. Applied Physics and Engineering, vol 12. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-9877-9_16
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DOI: https://doi.org/10.1007/978-1-4612-9877-9_16
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