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1.对于n型受光区域,它可以是光控晶闸管n型发射的一部分(这是最基本的一种结构形式),也可以把n型受光区域和n型发射区分开。这样,为了提高触发灵敏度可以让受光部分的n型区和P型基区短路,使它同时取辅助晶闸管作用。这种结构的光控晶闸管所需的最小触发光量就比较小,即灵敏度比前者提高了。 对于这种结构,如果用增加n型受光区域
1. For the n-type light-receiving area, it can be part of the light-emitting thyristor n-type emission (which is the most basic form of construction) and can also distinguish the n-type light-receiving area from the n-type emission. In this way, in order to improve the trigger sensitivity allows the light-receiving part of the n-type region and P-type base area short-circuit, so that it also take the role of auxiliary thyristor. This structure of light-controlled thyristor required minimum amount of trigger light is relatively small, that is, the sensitivity of the former increased. With this structure, if you increase the n-type light-receiving area