The term "thyristor" was coined from the terms "thyratron" and
"transistor". A thyratron was a gas-filled vacuum tube switch -
when triggered, it developed a low impedance path from cathode to
anode, and that path stayed in place until the current through the
tube ceased - you couldn't "turn it off". The thyristor was seen as
a "solid-state thyratron".
not a clue a A: It all depends on the thyristor. There are no calculation involved not until you look up the thyristor specifications and decide on the load of the thyristor then you may calculate or more likely choose.
Thyristor is a kind fast acting switch. These are fully controlled switches
The industrial applications of a thyristor are:To trigger a triacTo produce gate signalsto be used for controlled rectification
Isaac Asimov in the short story "Liar!"
25microsec
Freud coined the term infantilism.
Ehrenberg coined the term bacteria.
Raffaele Garofalo was the one who coined the term criminology. Criminology was coined in 1885.
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Gandhi coined the term satyagraha in south africa
No one coined it. It is an English term based on the Latin root familias.
Calvin Northrup Mooers coined the term "information retrieval"
It has been suggested by Merriam Webster the dictionary compilers that the term Toxicosis has its origins in the 19th century.
Giovanni Faber coined the term miccroscope......submitted by tarun
Raffaele Garofalo was the one who coined the term criminology. Criminology was coined in 1885.
The term "Forced commutation" is used when a thyristor is turned off using external components. If a thyristor is used in a DC circuit, when first turned on, it will stay on until the current goes to zero. To turn off the thyristor it is possible to use a Forced commutation circuit. The circuit creates a reverse voltage over the thyristor (and a small reverse current) for a short time, but long enough to turn off the thyristor. A simple circuit consist of a precharged capacitor and a switch (e.g. another thyristor) parallel to the thyristor. When the switch is closed, the current is supplied by the capacitor for a short while. This cause a reversed voltage over the thyristor, and the thyristor is turned off.