Patent ID: 11894765
Assignee: DELTA ELECTRONICS (SHANGHAI) CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 7:
8. The power conversion device of claim 3, wherein the multi-level power factor correction circuit comprises an inductor, a first bridge arm, and a second bridge arm; each of the first bridge arm and the second bridge arm is connected to both ends of the first output capacitor in parallel; the first bridge arm comprises a fifth switch, a sixth switch, a seventh switch, an eighth switch, and a second flying capacitor; the second bridge arm comprises a first switch, a second switch, a third switch, a fourth switch, and a first flying capacitor;
wherein the fifth switch and the sixth switch are connected to each other in series, and connected at a third node, the sixth switch and the seventh switch are connected to each other in series, and connected at a midpoint of the first bridge arm, the seventh switch and the eighth switch are connected to each other in series, and connected at a fourth node, the second flying capacitor is connected between the third node and the fourth node;
wherein the first switch and the second switch are connected to each other in series, and connected at a first node, the second switch and the third switch are connected to each other in series, and connected at the midpoint of the second bridge arm, and the third switch and the fourth switch are connected to each other in series, and connected at a second node; the first flying capacitor is connected between the first node and the second node; the inductor is coupled between the midpoint of the first bridge arm and the midpoint of the second bridge arm.