Multi-Level Inverter Apparatus and Method

摘要

An inverter comprises a first input capacitor and a second input capacitor connected in series, an inverting unit comprising a first switch, a second switch, a third switch and a fourth switch connected in series, wherein the inverting unit is connected to an input of an L-C filter, a first bidirectional conductive path connected between a common node of the first switch and the second switch, and a common node of the first input capacitor and the second input capacitor, a second bidirectional conductive path connected between a common node of the third switch and the fourth switch, and the common node of the first input capacitor and the second input capacitor and a flying capacitor connected between the common node of the first switch and the second switch, and the common node of the third switch and the fourth switch.

主权项

1. An inverter comprising:
a first input capacitor and a second input capacitor connected in series; an inverting unit comprising a first switch, a second switch, a third switch and a fourth switch connected in series, wherein the inverting unit is connected to an input of an L-C filter; a first bidirectional conductive path connected between a common node of the first switch and the second switch, and a common node of the first input capacitor and the second input capacitor; a second bidirectional conductive path connected between a common node of the third switch and the fourth switch, and the common node of the first input capacitor and the second input capacitor; and a flying capacitor connected between the common node of the first switch and the second switch, and the common node of the third switch and the fourth switch.