公开(公告)号：US20230061103A1

公开(公告)日：2023-03-02

申请号：US17896517

申请日：2022-08-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guolei Yu ,  Shuchao Song ,  Junliang Qin ,  Zhiqiang Xiang

IPC: H02M7/483 ,  H02M7/487 ,  H02M1/00 ,  H02M3/158

Abstract: A multi-level direct current converter includes a direct current conversion unit, a switching unit, a voltage management unit, and a controller. The direct current conversion unit includes a flying capacitor, a first power transistor, and a second power transistor. A first end of the first power transistor is connected to a voltage input end of the multi-level direct current converter, a second end of the first power transistor is connected to a first end of the second power transistor by using the flying capacitor, and a second end of the second power transistor is connected to a reference ground.

公开(公告)号：US12095387B2

公开(公告)日：2024-09-17

申请号：US17896517

申请日：2022-08-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Guolei Yu ,  Shuchao Song ,  Junliang Qin ,  Zhiqiang Xiang

IPC: H02M3/158 ,  H02M1/00 ,  H02M7/483 ,  H02M7/487

CPC classification number: H02M7/4837 ,  H02M1/0095 ,  H02M3/158 ,  H02M7/487

Abstract: A multi-level direct current converter includes a direct current conversion unit, a switching unit, a voltage management unit, and a controller. The direct current conversion unit includes a flying capacitor, a first power transistor, and a second power transistor. A first end of the first power transistor is connected to a voltage input end of the multi-level direct current converter, a second end of the first power transistor is connected to a first end of the second power transistor by using the flying capacitor, and a second end of the second power transistor is connected to a reference ground.