| 摘要 |
A circuit configuration in which a pair of conversion circuit parts for converting a power source voltage of a DC power source into an AC by two pairs of switching elements made of a full bridge configuration and a pair of transformers is used as inverter units. The n groups of the inverter units are provided with respect to the DC power source, and a secondary side of one transformer of each of the inverter units are connected in series among the n groups and also a secondary side of the other transformer are connected in series among the n groups.
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