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thyristor

[thahy-ris-ter] /θaɪˈrɪs tər/
noun, Electronics.
1.
a semiconductor device having two stable states, used as an electronic switch.
Origin
1965-1970
1965-70; thyr(atron) + (trans)istor
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for thyristor
  • Voltage from the charged condenser was fed to the spiral with the help of a power pulse thyristor.
  • The latter has the typical shape of a thyristor inverter current, with high ripple.
  • It is basically a capacitor bank in parallel with a thyristor controlled reactor.
  • The failure of a single solid state device, such as an output thyristor, should not render the safety circuit ineffective.
  • However, unlike the sparkover of a gap or the triggering of a thyristor, time delay is not involved.
British Dictionary definitions for thyristor

thyristor

/θaɪˈrɪstə/
noun
1.
any of a group of semiconductor devices, such as the silicon-controlled rectifier, that can be switched between two states
Word Origin
C20: from thyr(atron) + (trans)istor
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for thyristor

any of several types of transistors having four semiconducting layers and therefore three p-n junctions; the thyristor is a solid-state analogue of the thyratron vacuum tube, and its name derives from the combination of the two words thyratron and transistor. A common form of thyristor is the silicon-controlled rectifier (SCR), used to convert alternating current (AC) to direct current (DC) and widely used as a component of devices that control motor speeds, liquid levels, temperatures, and pressures.

Learn more about thyristor with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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