| 摘要 |
<p>An inverter (2) including a switch circuit (31) for converting a DC power to output an AC voltage between a first output terminal (A) and a second output terminal (B) is provided. The switch circuit (31) includes a first switch branch (312) having a first switch element (S1), a second switch element (S2), and a third switch element (S3); a second switch branch (313) having a fourth switch element (S4), a fifth switch element (S5), and a sixth switch element (S6); a first freewheeling unit (310) connected to the first switch element (S1), the second switch element (S2), and the second output terminal (B) for providing a freewheeling path between the second output terminal (B) and the first switch element (S1) and the second switch element (S2); and a second freewheeling unit (311) connected to the fourth switch element (S4) and the fifth switch element (S5) and the first output terminal (A) for providing a freewheeling path between the first output terminal (A) and the fourth switch element (S4) and the fifth switch element (S5).
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