公开(公告)号：US20230238876A1

公开(公告)日：2023-07-27

申请号：US17997166

申请日：2021-04-28

Applicant: PRODRIVE TECHNOLOGIES INNOVATION SERVICES B.V.

Inventor： Daifei ZHANG ,  Mattia GUACCI ,  Johann Walter KOLAR ,  Jordi EVERTS

IPC: H02M1/12 ,  H02M7/219 ,  H02M3/158 ,  H02M7/797 ,  H02M1/00

CPC classification number: H02M1/123 ,  H02M1/0048 ,  H02M3/158 ,  H02M7/219 ,  H02M7/797 ,  H02P27/06

Abstract: An AC-DC converter may include three phase terminals, two DC terminals, a first converter stage to convert between an AC current at the phase terminals and a first DC current at the first and second intermediate nodes, a second converter stage operable to convert between a first DC signal at third and fourth intermediate nodes and a second DC signal at the DC terminals, a first filter stage comprising a capacitor network having a star-point, a DC link connecting the first intermediate node to the third intermediate node and the second intermediate node to the fourth intermediate node. The second converter stage includes a middle voltage node between the DC terminals and a boost circuit having a midpoint node at the same electrical potential as the middle voltage node. The DC link includes a common mode filter having a common mode capacitor connecting the middle voltage node to the star-point.