| 摘要 |
PROBLEM TO BE SOLVED: To provide a DC high-voltage power supply device that can easily raise an operation frequency, whereby can reduce a capacity of a capacitor that constitutes a Cockcroft-Walton circuit, and furthermore can reduce the size of the Cockcroft-Walton circuit. SOLUTION: This DC high-voltage power supply device comprises an air core transformer 4a that operates as a boosting transformer, and the Cockcroft-Walton circuit 10a that boosts and rectifies the secondary voltage V<SB>2</SB>of the transformer. Furthermore, the power supply device forms a parallel resonance circuit that resonates at the frequency f of AC power fed to a primary winding 6 by using the inductance L<SB>2</SB>of a secondary winding 8 of the air core transformer 4a and stray capacitance C<SB>s</SB>that is generated by the Cockcroft-Walton circuit 10a and electrically connected to the secondary winding 8 in parallel therewith. COPYRIGHT: (C)2007,JPO&INPIT
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