Solve the problem of recording SCR control circuit not shutting down completely

The original circuit is a parallel capacitor is 10nF, 39 ohm. The phenomenon is that the lamp cannot be completely closed.

Now instead of 1nF, 30 ohms, the problem is completely solved.

The 1nF withstand voltage capacitance is 1000V and the package is 1206

Power factor (Power Factor) is the size of the circuit load characteristics, such as incandescent bulb, resistance furnace, such as resistance load power factor of 1, generally with inductive load circuit power factor is less than 1. Power factor is an important technical data of power system. Power factor is a factor to measure the efficiency of electrical equipment. Low power factor, indicating that the circuit for alternating magnetic field conversion of reactive power, thereby reducing the utilization of equipment, increased line power loss.