二、可控硅的有关参数前面已经讲过,可控硅是一个可以控制的单方向导电的开关,因此我们使用可控硅时最关心的是它在阻断状态下能够承受多大的正向与反向电压,它在导通时能够通过多大的电流,以及要使它由阻断到导通,控制极需要加多大的电流和电压。第一 Second, the SCR-related parameters As already mentioned before, SCR is a controlled one-way conductive switch, so when we use the most concerned about is the silicon in the blocking state can withstand much positive And the reverse voltage, it can be passed in the conduction of how much current, and to make it from blocking to conduction, the control pole need to add much current and voltage. the first