The main loop of the DC high voltage generator is
composed by three parts, concluding the input adjustment
circuit, voltage doubling circuit and measurement displaying
circuit. The designed principle block diagram of generator is
shown in Fig. 1. The system adopts single-phase 220V AC
commercial power supply, the 220V AC voltage is rectified
through half controlled rectifier bridge of silicon controlled
rectifier, filtered, and it is regulated voltage by the adjusting
tube, the inverter is provided the DC voltage current of a high
degree of stability and small ripple.