公开(公告)号：US20230080754A1

公开(公告)日：2023-03-16

申请号：US17990952

申请日：2022-11-21

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Hong TUO ,  Hua YU ,  Jiaolong LAI

IPC: H02J7/00

Abstract: A charging control method, an energy storage module, and a powered device. The method includes: obtaining a sampling voltage of an input port of a DC-DC unit; determining a charging parameter of the DC-DC unit for an energy storage unit based on the sampling voltage of the input port of the DC-DC unit and a preset constant voltage of the input port of the DC-DC unit, where a sum of a charging electricity quantity reflected by the charging parameter and a charging electricity quantity of a load is equal to a maximum output electricity quantity of an input source; and after the charging parameter is determined, charging the energy storage unit by using the charging electricity quantity reflected by the charging parameter.

公开(公告)号：US20240372457A1

公开(公告)日：2024-11-07

申请号：US18774019

申请日：2024-07-16

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yi CAI ,  Hua YU ,  Changlei DU ,  Xiaoyu LIU

IPC: H02M1/00 ,  H02M3/04

Abstract: The embodiments provide a backplane and a power conversion method and apparatus. The power conversion apparatus includes a first power module, a second power module, and a controller. Each power module includes a signal processor and a corresponding power converter. The signal processor in the first power module sends a generated first carrier signal to the signal processor in the second power module. The signal processor in the second power module determines a second carrier signal by using a period of the first carrier signal, to drive the power converter in the first power module by using the first carrier signal, and drive the power converter in the second power module by using the second carrier signal. This improves operating efficiency of a device in a power conversion process and reduces a power loss.

公开(公告)号：US20230032849A1

公开(公告)日：2023-02-02

申请号：US17875913

申请日：2022-07-28

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Hong TUO ,  Hua YU ,  Quanxi LIN ,  Tianhui ZHANG

IPC: H02J7/00 ,  H02M3/158

Abstract: A battery module is configured to discharge to a terminal device, and the battery module includes: a detection and control unit, a buck-boost unit, and a cell pack. The detection and control unit is configured to: receive a terminal-required voltage sent by the terminal device; and control the buck-boost unit to discharge to the terminal device through the cell pack based on the terminal-required voltage.