Summary
Perfect isolation between power and control circuits in high-voltage converter equipment is obtained by optical thyristor triggering. Direct optical triggering of power thyristors and auxiliary thyristors with lasers or LEDs, i.e. triggering with an internally generated photocurrent, requires the development of highly trigger-sensitive thyristor gates. High trigger-power amplification and different methods of avoiding or compensating for fault triggering permit the design of light-activated thyristors which can be triggered with light power in the milliwatt range. The temperature dependence of turn-on properties and some relations to thyristor structures can be obtained from relatively simple charge-control model calculations.
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© 1982 Plenum Press, New York
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Silber, D., Maeder, H., Fuellman, M. (1982). Light-Activated Thyristors. In: Sittig, R., Roggwiller, P. (eds) Semiconductor Devices for Power Conditioning. Earlier Brown Boveri Symposia. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-7263-9_3
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DOI: https://doi.org/10.1007/978-1-4684-7263-9_3
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