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公开(公告)号：US20240291382A1
公开(公告)日：2024-08-29
申请号：US18655778
申请日：2024-05-06
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Jun WANG , Shaolei CHEN , Chuangpeng LI , Dongsheng ZHAO , Chenglong MA
CPC classification number: H02M1/4208 , H01F27/24 , H01F27/28 , H02M7/06
Abstract: An inductor, a power factor correction circuit, and a power supply system. The inductor includes a coil winding and a magnetic core. The magnetic core includes a first outer magnetic core, a second outer magnetic core, and a winding unit. The first outer magnetic core and the second outer magnetic core are disposed opposite to each other in a first direction, the winding unit is disposed between the first outer magnetic core and the second outer magnetic core, and the coil winding is disposed around the winding unit. The winding unit includes a magnetic core middle column and at least two air-gaps distributed in the first direction. The inductor can improve the operating efficiency of the power factor correction circuit and can optimize efficiency of the power supply system in the light load phase.
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公开(公告)号：US12075558B2
公开(公告)日：2024-08-27
申请号：US17559763
申请日：2021-12-22
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhaozheng Hou , Xiaojing Liao , Chao Shen , Dongxing Wang
CPC classification number: H05K1/0204 , H05K1/0203 , H05K1/0272 , H05K1/182 , H05K1/185 , H05K7/20218
Abstract: The present disclosure relates to the field of printed circuit board technologies. A printed circuit board with good heat dissipation performance is provided and includes a substrate serving as a board body of the printed circuit board, a heating component embedded in the substrate, and a cooling liquid channel disposed in the substrate. The cooling liquid channel is disposed in the printed circuit board, and passes around the heating component to exchange heat with the heating component, so that a heat dissipation path is shortened and heat dissipation efficiency is improved, thereby quickening heat dissipation of the printed circuit board, and prolonging a service life of the printed circuit board.
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公开(公告)号：US20240283385A1
公开(公告)日：2024-08-22
申请号：US18650766
申请日：2024-04-30
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Ying Li , Chaojie Shi , Ningbo Feng , Zhenxing Chen , Xian Luo
CPC classification number: H02P27/085 , B60L50/60 , B60L58/12 , H02J7/2434 , H02P27/12 , B60L2240/12
Abstract: This application provides a motor drive system, a vehicle, a charging method, a control apparatus, and a medium, to improve motor performance in a vehicle charging process. The motor drive system may include a plurality of bridge arms, a motor, and a control module. The motor includes a plurality of windings. A second end of a first switch in a first bridge arm in the plurality of bridge arms is coupled to a first electrode of a power supply, and a second electrode of the power supply is coupled to a power battery. The control module is configured to: obtain a rotor position angle of the motor; and control a bridge arm other than the first bridge arm in the plurality of bridge arms in a control manner corresponding to the rotor position angle, to enable the power supply to charge the power battery.
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公开(公告)号：US12068806B2
公开(公告)日：2024-08-20
申请号：US17704112
申请日：2022-03-25
Applicant: Huawei Digital Power Technologies Co., Ltd.
Abstract: An interface circuit, a string, and a system that are applied to power line communication, to lower device specifications, includes: an inverter, an optimizer group, a capacitor, a magnetic ring, power lines, and a signal line. An optimizer in the optimizer group is configured to adjust a size of a direct current output by a photovoltaic module connected to the optimizer. Two ends of the signal line passing through the magnetic ring are connected to the inverter. Two ends of a power line passing through the magnetic ring are respectively connected to the capacitor and the optimizer group. By using the foregoing interface circuit, a high voltage of a direct current output by the optimizer group is prevented from being introduced into the inverter, thereby reducing a specification requirement of a device such as a capacitor.
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公开(公告)号：US20240266980A1
公开(公告)日：2024-08-08
申请号：US18430324
申请日：2024-02-01
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Kang YU , Weilong ZHANG , Ming SUN
CPC classification number: H02P27/06 , B60L15/007 , H05K7/209
Abstract: This application provides an inverter apparatus used in a motor controller, a motor controller, and a vehicle. The inverter apparatus includes a capacitor module, a power module, and a first heat sink. The power module includes a plurality of power transistors, and the plurality of power transistors are arranged in a flat manner in a direction perpendicular to a direction in which the power module and the first heat sink are stacked. The first heat sink is configured to dissipate heat for the power transistors in the power module, so that the power transistors operate in a proper temperature environment. The inverter apparatus provided in this application has a compact structure layout and high integration. This is conducive to implementing a miniaturization embodiment of the motor controller, and reducing difficulty of disassembling and assembling internal parts of the motor controller and costs.
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Patent Agency Ranking
公开(公告)号：US12057281B2
公开(公告)日：2024-08-06
申请号：US17656709
申请日：2022-03-28
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Guangming Huang , Yang Zhu , Taixian Chen
CPC classification number: H01H50/18 , H01H50/02 , H01H50/36 , H01H50/44 , H01H50/546
Abstract: This application provides a direct current contactor which includes a housing, and a first fixed contact and a second fixed contact that are fastened into the housing; a first moving contact and a second moving contact that are located in the housing; a drive mechanism, including: an insulation rod connected to the first moving contact and the second moving contact, and a drive component that drives the insulation rod to drive the first moving contact and the second moving contact to synchronously move toward the first fixed contact and the second fixed contact; and a pressing component configured to push the moving contact firmly against the fixed contact. Only two pairs of contacts are used to implement connection/disconnection of two electrode lines, so that a total contactor resistance is reduced by half compared with that in the conventional technology.
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公开(公告)号：US20240258591A1
公开(公告)日：2024-08-01
申请号：US18631638
申请日：2024-04-10
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Hong TUO , Yi CAI , Wenguang LI , Baoguo CHEN
CPC classification number: H01M10/4264 , H02J7/0068 , H01M2010/4271 , H01M2220/10 , H02J2207/20
Abstract: A battery management system includes a sampling control unit, a DC/DC conversion unit, and an energy storage unit. When the battery pack needs to be heated, based on battery parameters of the battery pack and a voltage and a current limit value of the DC/DC conversion unit, the sampling control unit may control, in each of at least one consecutive first cycle, the battery pack to discharge to the energy storage unit by using the DC/DC conversion unit; control, in each of at least one consecutive second cycle, the energy storage unit to charge the battery pack by using the DC/DC conversion unit; and control, in the at least one consecutive first cycle and the at least one consecutive second cycle, an average charge/discharge current value of the battery pack to be less than or equal to a charge/discharge current limit value.
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公开(公告)号：US20240250535A1
公开(公告)日：2024-07-25
申请号：US18585771
申请日：2024-02-23
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Liuliu Huang , Lin Li
CPC classification number: H02J3/32 , H02J3/46 , H02J2300/24
Abstract: N direct current coupling units are configured to provide electric energy to a load. Each of the N direct current coupling units includes an energy storage unit. The energy storage unit is configured to store electric energy or supply power to the load. Herein, N is a positive integer. A primary controller is configured to determine an expected discharge power value of energy storage units in the N direct current coupling units, where the expected discharge power value is a power value that indicates power that needs to be discharged by the energy storage units in the N direct current coupling units, and determine actual discharge power of the energy storage unit in each direct current coupling unit based on the expected discharge power value and first characteristic information of the energy storage unit in the direct current coupling unit.
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公开(公告)号：US12046925B2
公开(公告)日：2024-07-23
申请号：US17383661
申请日：2021-07-23
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Di Zhou , Le Wang , Xiaoqing Hu
CPC classification number: H02J50/80 , H02J50/12 , H02J2310/22
Abstract: This application discloses a wireless charging receiver and a wireless charging method. The method includes: receiving, by using a first oscillation circuit, pulse energy emitted by a transmitter, where the first oscillation circuit includes a first receiving coil configured to convert the pulse energy and output power; when a voltage value output by the first oscillation circuit reaches a first reference voltage value, sending a power transfer instruction to the transmitter, so that the transmitter emits energy according to the power transfer instruction, where the first reference voltage value is a working voltage threshold of a processor; and receiving, by using a second oscillation circuit, the energy emitted by the transmitter according to the power transfer instruction.
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公开(公告)号：US20240243179A1
公开(公告)日：2024-07-18
申请号：US18622845
申请日：2024-03-29
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Hui Sun , Biao Gao , Zhibin Chen , Yong Hou
IPC: H01L29/423 , H01L21/285 , H01L21/3213 , H01L29/20 , H01L29/40 , H01L29/66 , H01L29/778
CPC classification number: H01L29/42316 , H01L21/28581 , H01L21/32134 , H01L21/32139 , H01L29/2003 , H01L29/401 , H01L29/66462 , H01L29/7786
Abstract: A semiconductor device includes a channel layer and a barrier layer that are sequentially stacked, a doped layer, and a gate structure. The channel layer and the barrier layer each are made of a group III nitride material. The barrier layer includes a gate region. The doped layer is located on a side of the barrier layer that is away from the channel layer. The doped layer is located in the gate region. A material of the doped layer is a group III-V compound including a receptor-type doped element.
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