About the role of thyristors

Thyristor is the abbreviation of thyristor rectifier element, which is a high-power semiconductor device with a four-layer structure of three PN junctions, which is generally composed of two thyristors connected in the opposite direction. Its function is not only rectification, but also can be used as a quick turn-on or cut-off of a contactless switch; Realize the inverter that converts direct current into alternating current; Alternating current of one frequency becomes alternating current of another frequency, and so on. Like other semiconductor devices, thyristors have the advantages of small size, high efficiency, good stability and reliable operation. Its emergence has enabled semiconductor technology to enter the field of strong electricity from the field of weak electricity, and has become a component used in industry, agriculture, transportation, military scientific research, and even commercial and civil electrical appliances. At present, thyristors are widely used in automatic control, electromechanical applications, industrial electrical and home appliances.

 In terms of appearance, there are three main types of thyristors: spiral, flat plate and flat-bottomed. There are many spiral applications.