A thyristor is a solid-state semiconductor device with four layers of alternating N and P-type material. They act as bistable switches, conducting when their gate receives a current trigger, and continue to conduct while they are forward biased (that is, while the voltage across the device is not r...
Found op http://en.wikipedia.org/wiki/Thyristor
A component rather like a diode but will not conduct until a voltage is applied to its third terminal known as the gate. See also: Transistor, Triac.
Found op http://www.diracdelta.co.uk/science/source/t/h/thyristor/source.html
Otherwise known as an S.C.R. (silicon controlled rectifier) used as the power switching device in most d.c drive bridges.
Found op http://www.encyclo.co.uk/local/20823
Also called a Silicon-Controlled Rectifier or SCR, it is a solid-state high current semiconductor switching device similar to a diode, with an extra terminal which is used to turn it on. Once turned on, the thyristor will remain on (conducting) as long as there is a significant current flowing throu...
Found op http://www.mpoweruk.com/glossary.htm
any of several types of transistors having four semiconducting layers and therefore three - junctions; the thyristor is a solid-state analogue of the ... [3 related articles]
Found op http://www.britannica.com/eb/a-z/t/47
bi-stable semiconductor device comprising three or more junctions which can be switched from the off-state to the on-state or vice versa NOTE - Devices having only three layers but having switching characteristics similar to those of four-layer thyristors may also be called thyristors.
Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=521-04-61
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 automaticall...
Found op http://www.infoplease.com/ce6/sci/A0921711.html
Type of rectifier, an electronic device that conducts electricity in one direction only. The thyristor is composed of layers of semiconductor material sandwiched between two electrodes called the anode and cathode. The current can be switched on by using a third electrode called the gate. Thyristors...
Found op http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0025361.html
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