公开(公告)号：US20230231480A1

公开(公告)日：2023-07-20

申请号：US18186482

申请日：2023-03-20

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhengyan HE ,  Jiebin CHENG ,  Haitao CHEN

IPC: H02M3/158 ,  H02M1/32 ,  H02M1/00

CPC classification number: H02M3/1582 ,  H02M1/322 ,  H02M1/0077

Abstract: A switched-capacitor DC/DC converter, a switching-mode power supply, and a control method. The switched-capacitor DC/DC converter includes a controllable switch and n switched capacitor modules, where the n switched capacitor modules are connected in series to form a voltage conversion branch circuit, and the voltage conversion branch circuit is connected to the controllable switch in series. n is an integer greater than or equal to 1. When the DC/DC converter implements different voltage conversion ratios, n may be different values. The converter can implement voltage step-down or voltage step-up, and does not include a transformer inside.

公开(公告)号：US20250055416A1

公开(公告)日：2025-02-13

申请号：US18767014

申请日：2024-07-09

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yuetong HAO ,  Chongyue HUANG ,  Jiebin CHENG ,  Fangdong BAO ,  Yufei HE ,  Di ZHOU

IPC: H02S40/32 ,  H02S20/20

Abstract: A photovoltaic module, which includes a module, a module frame, a mounting piece, and a power converter. The module covers the module frame. The module frame includes a plurality of frame sides. Each frame side extends in a direction away from the module. The plurality of frame sides are sequentially connected to enclose accommodation space of the module frame. Both the mounting piece and the power converter are located in the accommodation space. The mounting piece includes a fastening portion and a support plate that are connected to each other. The fastening portion is connected to a side wall that is of one frame side and that faces the accommodation space. The support plate extends toward an inside of the accommodation space in a direction away from the fastening portion. The power converter is detachably connected to the support plate.

公开(公告)号：US20220337145A1

公开(公告)日：2022-10-20

申请号：US17858821

申请日：2022-07-06

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhengyan HE ,  Jiebin CHENG ,  Qinghai WANG ,  Yuliang LU

IPC: H02M1/00

Abstract: Embodiments of the present invention disclose a power converter and a related system. The power converter includes a controller and a power conversion circuit. The power conversion circuit is configured to convert an input power of an input power supply into an output power of a load, where the input power supply is an external power supply connected to the power converter. The controller is configured to control on/off of the first switch element, to implement connection/disconnection between the input power supply and the inductive element; and control the unidirectional conduction circuit to be turned on before the first switch element is turned on in the power conversion cycle.

公开(公告)号：US20240072724A1

公开(公告)日：2024-02-29

申请号：US18455917

申请日：2023-08-25

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zhiqiang XIANG ,  Jiebin CHENG

IPC: H02S40/42

CPC classification number: H02S40/425

Abstract: An electronic apparatus and a photovoltaic power optimizer. The electronic apparatus includes a circuit board, a heat dissipation housing, and an insulation member. The circuit board has a first surface and a second surface opposite to each other, where a first heat dissipation region is formed on the first surface and a second heat dissipation region is formed on the second surface. A first heat dissipation member has a first heat dissipation surface that is in direct contact with the first heat dissipation region. A second heat dissipation member is connected to the first heat dissipation member in a first direction, and has a second heat dissipation surface that is in direct contact with the second heat dissipation region. The first heat dissipation region and the second heat dissipation region are sealed by using the first heat dissipation member and the second heat dissipation member.

公开(公告)号：US20220238268A1

公开(公告)日：2022-07-28

申请号：US17721034

申请日：2022-04-14

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Ning WANG ,  Jiebin CHENG ,  Wei TAN

IPC: H01F27/24 ,  H01F27/28

Abstract: This application provides a planar transformer and an active circuit, and may be applied to a telecommunications device and a communications power supply in fields such as a 5G mobile communications technology and cloud computing. The planar transformer includes a winding structure and a magnetic core structure. The winding structure includes a primary-side winding and a secondary-side winding. The magnetic core structure includes a first magnet part, a second magnet part, and a plurality of magnetic cylinders. The plurality of magnetic cylinders are located between the first magnet part and the second magnet part. The primary-side winding is wound around M magnetic cylinders in the plurality of magnetic cylinders, wherein M is a positive integer equal to or greater than three (3). A cross-sectional area of at least one of the M magnetic cylinders is different from a cross-sectional area of another magnetic cylinder.