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

Claim 3:
4. 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 first switching device and a second switching device; the first switching device and the second switching device are connected to each other in series, and connected at a midpoint of the first bridge arm; the second bridge arm comprises a first switch, a second switch, a third switch, a fourth switch, and a first flying capacitor;
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 second bridge arm and the midpoint of the first bridge arm.