| 摘要 |
PROBLEM TO BE SOLVED: To confirm the operation side of a double system form the outside of a double-system power converter. SOLUTION: Control units 5a and 5b output signals indicating that either of the first and the second power converters is in an operation state. A display part 6 displays that either of the first and the second power converters in the operation state on the basis of the signal from the control unit 5a or 5b. COPYRIGHT: (C)2008,JPO&INPIT
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