公开(公告)号：US20210016672A1

公开(公告)日：2021-01-21

申请号：US17061252

申请日：2020-10-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huibin Zhu ,  Heping Dai ,  Yongtao Liang ,  Weiping Liu

IPC: B60L53/22 ,  B60L50/61

Abstract: According to one aspect of the present disclosure, there is provided an apparatus that includes first, second, and third power converter stages connected to a transformer module. At least one of the first, second, and third power converter stages is a multi-level power converter stage that has multiple configurations to generate different output voltages from an input voltage.

公开(公告)号：US20210155103A1

公开(公告)日：2021-05-27

申请号：US16911353

申请日：2020-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Huibin Zhu ,  Heping Dai ,  Yongtao Liang ,  Weiping Liu ,  Feng Su ,  Shaohua Wang

IPC: B60L53/24 ,  B60L53/22 ,  H02J7/02 ,  H02M3/335 ,  H02M7/5387 ,  H02P27/06

Abstract: According to one aspect of the present disclosure, there is provided an apparatus that includes a battery, a Direct Current (DC) bus connected to the battery, and a DC to DC converter connected to the battery in parallel with the DC bus. A Motor Control Unit (MCU) is connected between the DC to DC converter and an electric motor. An Alternating Current (AC) port is connected to the electric motor. Switches connect the DC bus and an output of the DC to DC converter in series as an input to the MCU in a drive mode and disconnect the DC bus from the MCU in a charge mode.