| 摘要 |
PURPOSE:To supply electric power as a pulse form from a resonance high frequency inverter to an X-ray tube to obtain a good pulse X-ray by constituting a high voltage generator which supply electric power to an X-ray tube with a resonance high frequency inverter and controlling the operation of the resonance high frequency inverter by synchronizing with the operation of a picture processing device. CONSTITUTION:Power supply from a high voltage generator 6 to an X-ray tube 1 is controlled with an X-ray controller 7. The X-ray controller 7 controls generation of X-ray by synchronizing with the operation of a picture processing device 4. Since the high voltage generator 6 consists of a high frequency inverter of voltage resonance type single switch method, if supply voltage to the X-ray tube 1 is detected, and conduction timing of an auxiliary switch element 16b is controlled by negative feedback based on the detected voltage, the supply voltage is easily and effectively stabilized. If the power supply to the X-ray tube 1 is on-off-controlled with the auxiliary switch element 16b, the output is sharply turned off and on with the resonance condition of the inverter maintained, and its starting up performance is improved to 1msec or less.
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