| 摘要 |
A high-voltage power supply device for generating a voltage in which a direct-current voltage and an alternating-current voltage are superimposed is provided with alternating-current voltage generating unit generating an alternating-current voltage, and direct-current voltage generating unit generating a direct-current voltage to be superimposed on the alternating-current voltage generated by the alternating-current voltage generating unit. The alternating-current voltage generating unit sets the alternating-current voltage to be generated to such a value that peak values of a voltage superimposed with the direct-current voltage to fall within predetermined voltage values when generating the alternating-current voltage to start the superimposition with the direct-current voltage generated by the direct-current voltage generating unit.
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