| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply unit which suppresses discharge vibration of an electric propulsion machine in output of the anode power source part of the power supply unit without having a large capacity capacitor in output of the anode power supply part of the power supply unit, furthermore relaxes electric stress when discharge short-circuiting occurs, and lengthens a life of the electric propulsion machine. SOLUTION: The power supply unit is provided with one or more anode current detectors 9 and a power supply control part 7. Detection of an anode current b is effected as a means to suppress discharge vibration of an anode current b, the detection current signal is properly converted in the signal by the power supply control part 7, and feedback control is effected so that the output of a magnetic field control power supply part 3 is made optimum. COPYRIGHT: (C)2006,JPO&NCIPI
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