公开(公告)号：US20240396558A1

公开(公告)日：2024-11-28

申请号：US18798327

申请日：2024-08-08

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Mattias Andersson

IPC: H03K21/02 ,  G06F7/50

Abstract: A timer circuit is configured for providing adjustable frequency timing in a closed-loop control circuit. The timer circuit includes a period register, a counter, and a comparator. The period register is configured to hold a period value. The comparator is configured to determine when the counter reaches the period value. The timer circuit is configured to adjust the frequency by adjusting an increment controlling the counter.

公开(公告)号：US20240385248A1

公开(公告)日：2024-11-21

申请号：US18665878

申请日：2024-05-16

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jie XIE

IPC: G01R31/367 ,  G01R31/385 ,  G01R31/392 ,  G01R31/396

Abstract: An energy storage apparatus includes a battery control unit, a battery monitor unit, and a plurality of cells. The battery control unit is configured to receive a battery state of health (SoH) value estimation model from cloud device, and the battery monitor unit is configured to obtain an estimated SoH value of a first cell based on a real-time equivalent circuit model parameter of the first cell in the plurality of cells and the battery SoH value estimation model. According to the energy storage apparatus, a battery SoH value is estimated by using an artificial intelligence model, and deep charging and discharging do not need to be performed on a battery, so that the battery SoH value can be accurately obtained in a plurality of application scenarios, and a battery capacity abnormality risk can be identified in advance, thereby improving stability of an energy storage system.

公开(公告)号：US20240380212A1

公开(公告)日：2024-11-14

申请号：US18619287

申请日：2024-03-28

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Gang XIAO ,  Chongyue HUANG ,  Guilei GU ,  Zhengang SONG ,  Wentao LIU ,  Xuegong LI

IPC: H02J3/38 ,  H02J3/28 ,  H02M1/00 ,  H02M7/483

Abstract: A photovoltaic inverter and a control method thereof, and a photovoltaic system. The photovoltaic inverter system includes a voltage conversion circuit, an inverter circuit, and a controller. The controller is configured to increase, based on an output power of the inverter circuit in a current time period and an output power of the inverter circuit in a first time period, an output power of the inverter circuit when the voltage conversion circuit does not work in a maximum power state. An increase of the output power of the inverter circuit is an estimated power increment value of the inverter circuit so as to stably increase an output power of the inverter while ensuring stable operation of the inverter and safe use of a power component, and improve power supply efficiency of the photovoltaic system.

公开(公告)号：US20240379651A1

公开(公告)日：2024-11-14

申请号：US18780202

申请日：2024-07-22

Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

Inventor： Peng GOU ,  Can ZHONG ,  Fengjie TANG ,  Xiran ZUO ,  Ming PAN ,  Liu YUAN ,  Tianyi ZHANG ,  Guidong JIN ,  Yanjun CHEN

IPC: H01L27/02 ,  H01L21/762 ,  H01L27/06

Abstract: An example manufacturing method includes performing first ion implantation into a first area of a substrate to form a buried layer. Second ion implantation into a second area of the substrate is performed to form a pre-dopant, where the second area is disposed around a periphery of the first area, and a thermal diffusion capability of ions in the pre-dopant is higher than a thermal diffusion capability of ions at the buried layer. An epitaxial layer is formed on a side, of the substrate, on which the buried layer and the pre-dopant are disposed. Third ion implantation into the epitaxial layer is performed, in correspondence to the second area, to form a deep well. Thermal annealing is performed to thermally diffuse ions at the buried layer, in the pre-dopant, and in the deep well.

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：US12136900B2

公开(公告)日：2024-11-05

申请号：US17669724

申请日：2022-02-11

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jianqiang Wang ,  Song Wan ,  Yanzhong Zhang ,  Yongbing Gao

IPC: H02S50/15 ,  H02S40/32 ,  H04N5/33

Abstract: A method and an apparatus for detecting a solar cell of a photovoltaic plant. The method includes: obtaining a first infrared image and a second infrared image, where the first infrared image includes infrared image information corresponding to an ambient infrared signal reflected by a to-be-detected solar cell operating in a short-circuit state, the second infrared image includes infrared image information corresponding to an infrared signal emitted by the to-be-detected solar cell operating in a first state and infrared image information corresponding to an ambient infrared signal reflected by the to-be-detected solar cell, and the first state is another state other than the short-circuit state; and detecting, based on the first infrared image and the second infrared image, whether the to-be-detected solar cell has a defect.

公开(公告)号：US12136694B2

公开(公告)日：2024-11-05

申请号：US17478457

申请日：2021-09-17

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Jun Chen

IPC: H01M10/04 ,  H01M4/66 ,  H01M10/613 ,  H01M10/625 ,  H01M10/654 ,  H01M10/6551

Abstract: Embodiments of the application disclose a battery. A first current collector in the battery is brought into a contact with a battery housing, so that a part of heat generated by a cell can be directly conducted to the battery housing through the first current collector. The battery includes a battery housing, a first current collector, a separator, and a second current collector. The first current collector, the separator, and the second current collector are stacked and disposed inside the battery housing. The polarities of the first current collector and the second current collector are different. The first current collector is in contact with the battery housing.

公开(公告)号：US20240364212A1

公开(公告)日：2024-10-31

申请号：US18768559

申请日：2024-07-10

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Liqiong YI ,  Zezhou YANG ,  Dibin ZHOU

IPC: H02M1/42 ,  H02M1/00 ,  H02M3/00

CPC classification number: H02M1/4241 ,  H02M1/007 ,  H02M1/4216 ,  H02M3/003 ,  H02M3/01

Abstract: A power conversion circuit and an electronic device. After circuit units that each are in a resonant circuit of the power conversion circuit, and that each include a resonant capacitor and/or a resonant inductor, are connected in series in a triangle connection. When it can be ensured that the circuit units connected in series in the triangle connection and the circuit units connected in series in a star connection relationship provide a same resonant frequency, a capacitance value of the resonant capacitor is reduced, and/or current stress of the resonant capacitor and/or current stress of the resonant inductor are/is reduced.

公开(公告)号：US20240359570A1

公开(公告)日：2024-10-31

申请号：US18770148

申请日：2024-07-11

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Amir Ameur

IPC: B60L15/20

CPC classification number: B60L15/20 ,  B60L2240/423 ,  B60L2240/425 ,  B60L2240/642

Abstract: The disclosure relates to a vehicle control unit (VCU), wherein a hill hold feature enables keeping a position of a vehicle at standstill on a slope with the aid of an electric drive of the vehicle. The VCU is configured to receive information for determining a hold torque of the electric drive for holding the vehicle at standstill on the slope, information about a cooling of the electric drive and information about an initial temperature of the electric drive when the hill hold feature is enabled. The VCU is configured to determine a time until a derating of the electric drive begins based on a predefined derating model and the above information. The VCU is configured to determine a time indicator indicating the remaining time for which the hill hold feature can be provided based on the time until derating of the electric drive begins.

公开(公告)号：US12133321B2

公开(公告)日：2024-10-29

申请号：US17988222

申请日：2022-11-16

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Junpeng Kang ,  Zhuyong Huang ,  Bo Xiao ,  Wenhai Yao

IPC: G06F1/16 ,  H05K1/02 ,  H05K5/00 ,  H05K7/20

CPC classification number: H05K1/0203 ,  H05K7/2039

Abstract: An electronic device includes a heat dissipation part, a plurality of electronic components, and a fixed potential part. The electronic component is fastened to the heat dissipation part, and an insulation pad is disposed between the electronic component and the heat dissipation part. The fixed potential part has a fixed potential, and the heat dissipation part is electrically connected to the fixed potential part. The heat dissipation part has the fixed potential, a potential difference between the electronic component and the heat dissipation part is reduced, and a requirement of a safety specification between the electronic component and the heat dissipation part is reduced. The electronic component can be relatively close to the heat dissipation part, and a surrounding energized component of the heat dissipation part can also be closer to the heat dissipation part.