| 摘要 |
The present invention provides a multi-level high-voltage inverter having a structure suitable for improving efficiency through the reduction of conduction loss. According to the present invention, the multi-level inverter comprises: a rectification part to provide a first rectified voltage obtained by receiving and rectifying a first three-phase voltage, and a second rectified voltage obtained by receiving and rectifying a second three-phase voltage; a smoothing part to receive the first and second rectified voltages rectified at the rectification part, and provide voltages with different levels, respectively, to first through third nodes which are different from each other; and an inverter part equipped with a plurality of switch parts to deliver the three levels of voltages provided by the smoothing part. The inverter part comprises: a first switch part prepared between the first node and a first output terminal; a second switch part prepared between the second node and the first output terminal; a third switch part prepared between the third node and the first output terminal; a fourth switch part prepared between the first node and a second output terminal; a fifth switch part prepared between the second node and the second output terminal; and a sixth switch part prepared between the third node and the second output terminal. |
