US Patent 9093897 Inverter and control method thereof

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.