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单词 Thyristor converter
释义

Thyristor converter

英语百科

Thyristor

Circuit symbol for thyristor
An SCR rated about 100 amperes, 1200 volts mounted on a heat sink - the two small wires are the gate trigger leads
Structure on the physical and electronic level, and the thyristor symbol.
Layer diagram of thyristor.

A thyristor is a solid-state semiconductor device with four layers of alternating N and P-type material. It acts exclusively as a bistable switch, conducting when the gate receives a current trigger, and continuing to conduct while the voltage across the device is not reversed (forward-biased). A three-lead thyristor is designed to control the larger current of its two leads by combining that current with the smaller current of its other lead, known as its control lead. In contrast, a two-lead thyristor is designed to switch on if the potential difference between its leads is sufficiently large (breakdown voltage).

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