In the circuit shown in Figure 5-1, the gate of the SCR is connected through a resistor and diode directly to its anode.
在图5 - 1中所示的电路中，可控硅的栅极通过一个电阻器和二极管直接将其阳极连接。
2
To keep the anode current stable suitably, a temperature compensated circuit based on a thermal resistor to self-regulate the filament voltage has been designed.