Patent ID: 7327827

Claim:
A high voltage device comprising a low voltage DC source, a low voltage side inverter of which an input side is connected to the low voltage DC source and inverts the current from the low voltage DC source into high frequency AC voltage and outputs the same at an output side, a high voltage transformer of which a primary winding is connected to the output side of the low voltage side inverter and boosts up the high frequency AC voltage from the low voltage inverter, a high voltage rectifier of which an input side is connected to a secondary winding of the high voltage transformer and which rectifies the AC voltage boosted up by the high voltage transformer and provides an output at an output side, a high voltage side capacitor connected to the output side of the high voltage rectifier and an X-ray generation device connected between terminals of the high voltage side capacitor, characterized in that the high voltage device is further provided with a regenerating means for regenerating electric charge energy stored in the high voltage side capacitor from the high voltage side capacitor to the low voltage DC source via the high voltage transformer and with a regeneration control means connected with the regenerating means and for controlling an operation of the regenerating means.