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

Claim 20:
21. The power conversion device of claim 14, wherein the multi-level power factor correction circuit comprises a inductor, a first bridge arm, a second bridge arm, a first bidirectional switch and a second bidirectional switch; the first bridge arm and the second bridge arm are parallel to the first output terminal and the second output terminal of the multi-level power factor correction circuit, the first bridge arm comprises a third switch and a fourth switch, the third switch and the fourth switch are connected to a midpoint of the first bridge arm in series; the second bridge arm comprises a first switch and a second switch, the first switch and the second switch are connected to each other in series, and connected at the midpoint of the second bridge arm, the first bidirectional switch is connected between the midpoint the first bridge arm and a junction node of the first output capacitor and the second output capacitor in series, the second bidirectional switch is connected between the midpoint of the second bridge arm and the junction node of the first output capacitor and the second output capacitor in series, the inductor is coupled between the midpoint of the first bridge arm and the midpoint of the second bridge arm.