thyristor, semiconductor switch used chiefly in power-control applications. Also called a silicon-controlled rectifier (SCR; see rectifier), it is a variation of the transistor. A thyristor is capable of producing large direct currents by rectification of alternating currents and can be automatically triggered "off" for specified periods of time. Thyristors are used in variable-speed electric motors, power supplies for electrochemical processes, lighting and heating control, and controllers for electric utility power systems.
"thyristor." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (January 23, 2019). https://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/thyristor
"thyristor." The Columbia Encyclopedia, 6th ed.. . Retrieved January 23, 2019 from Encyclopedia.com: https://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/thyristor