X- ray machine has a wide range of applications in various fields. A novel X - ray machine is designed based on the technology of high - frequency inverter in this paper. Step up transformer' s parasitic parameters and resonant converter have been used reasonable in process of designing the anode high - voltage circuit. A push - pull circuit generating high - frequency AC voltage to heat filament is used. At the same time the control method for anodic current and the machine control timing are indicated. Experimental results from prototype mac...