本文介绍采用一台XJ4810型晶体管特性图示仪、一组6V干电池和一只6V、0.3A指示灯泡组成的测量电路,对晶闸管门极特性进行测量的方法。测量时能清楚地看到门极触发电压-电流特性曲线。通过对曲线显示的分析,还能发现其他测量方法不易查出的问题。 1.测量电路如图1所示。晶体管特性图示仪各旋钮和开关位置(图中未画出)可置于:峰值电压;0～50V以内;集电极扫描极性;十; This article describes the use of a XJ4810-type transistor characteristics of the graphical instrument, a group of 6V batteries and a 6V, 0.3A indicator light bulb composed of the measurement circuit to measure the characteristics of the thyristor gate. Measurement can clearly see the gate trigger voltage - current curve. Through the analysis of the curve shows, but also found that other measurement methods difficult to detect the problem. 1. Measurement circuit shown in Figure 1. Transistor characteristics The knob and switch position of the instrument (not shown) can be set at: peak voltage; within 0 ~ 50V; polarity of collector scan;