Inverter and control method thereof

摘要

The present invention discloses an inverter and a control method thereof. The inverter includes a first bridge leg having a series of first switch, second switch, third switch, fourth switch and fifth switch, and a second first bridge leg having a series of sixth switch, seventh switch, eighth switch, ninth switch, tenth switch. The control method includes steps of synchronously turning on or off the first switch, second switch, ninth switch and tenth switch, controlling that an on/off state of the third switch or eighth switch is complementary to an on/off state of the first switch, second switch, ninth switch and tenth switch, and synchronously turning on or off the fourth switch, fifth switch, sixth switch and seventh switch.

主权项

1. An inverter, comprising:
a first bridge leg electrically connected to a direct-current (DC) source, the first bridge leg comprising a first switch, a second switch, a third switch and a fourth switch and a fifth switch which are sequentially connected in series; a second bridge leg connected to the first bridge leg in parallel, the second bridge leg comprising a sixth switch, a seventh switch, an eighth switch, a ninth switch and a tenth switch which are sequentially connected in series; a first diode connected in anti-parallel with the first switch and the second switch which are connected in series; a second diode connected in anti-parallel with the fourth switch and the fifth switch which are connected in series; a third diode connected in anti-parallel with the sixth switch and the seventh switch which are connected in series; a fourth diode connected in anti-parallel with the ninth switch and the tenth switch which are connected in series; a cathode of a fifth diode connected to a connection point between the second switch and the third switch and an anode of the fifth diode connected to a connection point between the eighth switch and the ninth switch; and a cathode of a sixth diode connected to a connection point between the seventh switch and the eighth switch and an anode of the sixth diode connected to a connection point between the third switch and the fourth switch.