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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
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.
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公开(公告)号：US20250050723A1
公开(公告)日：2025-02-13
申请号：US18924785
申请日：2024-10-23
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Peng YANG , Zhengyi Tang , Jiayu Tang , Fei Bian
IPC: B60K1/00 , B60K17/356
Abstract: A powertrain and a vehicle. The powertrain includes an enclosure, a separator, a motor, a first liquid return channel, and a second liquid return channel. The separator separates an interior of the enclosure into a first cavity and a second cavity. The motor is located in the first cavity. The first liquid return channel is located on an outer side of the enclosure and communicates with the first cavity and the second cavity. The second liquid return channel is located on the outer side of the enclosure and communicates with the first cavity and the second cavity. In the embodiments, with two liquid return channels provided, a liquid return requirement can be met when the powertrain is installed or disposed at any angle or used on a slope, improving adaptability and safety of the powertrain.
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公开(公告)号：US12224680B2
公开(公告)日：2025-02-11
申请号：US18163481
申请日：2023-02-02
Applicant: Huawei Digital Power Technologies Co., Ltd.
IPC: H02M7/483 , H02M1/00 , H02M7/5387
Abstract: An active clamp flyback circuit includes: a clamp capacitor that is connected to a primary-side winding of a transformer and that is configured to absorb leakage inductance energy of the primary-side winding; an auxiliary switching transistor that is configured to control the clamp capacitor to perform reverse excitation power charging on the primary-side winding by using the auxiliary switching transistor; a first diode, where the first diode is connected in series between the clamp capacitor and the auxiliary switching transistor; and a second diode, where the second diode is connected between the first diode and the clamp capacitor, and the second diode is connected in series between the clamp capacitor and a primary-side auxiliary winding.
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公开(公告)号：US20250023460A1
公开(公告)日：2025-01-16
申请号：US18902523
申请日：2024-09-30
Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Inventor： Xiaolu HU , Zezhou YANG , Liqiong YI , Shaoxian CHEN
Abstract: A power control circuit includes an alternating current power supply module, a power module, and a controller. The power module includes a bridgeless power factor correction circuit. A sampling apparatus in the alternating current power supply module samples a current signal output by an alternating current power supply or the power module, and outputs an obtained sampled signal to the controller. The controller controls on and off of a switch element in the alternating current power supply module based on the received sampled signal, and the controller switches off the switch element when the sampled signal includes a lightning surge signal. In addition, the controller is further configured to perform current metering on the sampled signal.
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公开(公告)号：US12199543B2
公开(公告)日：2025-01-14
申请号：US18178553
申请日：2023-03-06
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Ruoyang Du
IPC: H02P29/68
Abstract: The disclosure discloses a motor driving method, an apparatus, and a system, and relate to the chip field. The solution may include: When a motor control apparatus determines that a motor needs to rotate at a maximum torque, the motor control apparatus controls a driver to output a first current to drive the motor to rotate. The first current is greater than a rated peak current of the driver and is less than or equal to a maximum load current of the driver. This method can resolve a problem that a waste of costs is caused because a through-current capability improved by a redundancy design of a switching transistor of a motor driver cannot be fully utilized for most customers and application scenarios.
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Patent Agency Ranking
公开(公告)号：US12199522B2
公开(公告)日：2025-01-14
申请号：US17826395
申请日：2022-05-27
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhiwu Xu , Yongbing Gao , Niantao Jiang
Abstract: A method and an apparatus for detecting a short circuit of an inverter, and an inverter are provided. A voltage of a common bus is increased when a plurality of boost circuits in the inverter are all in a non-working state, and after circuit parameters of input sides of all the plurality of boost circuits are detected, a boost circuit in which a diode is short-circuited in the plurality of boost circuits is further determined based on the circuit parameters of the input sides of the boost circuits. According to the method and the apparatus for detecting a short circuit of an inverter, and the inverter, circuit complexity of the inverter can be reduced, and circuit complexity of a photovoltaic power generation system including the inverter is reduced.
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公开(公告)号：US12196300B2
公开(公告)日：2025-01-14
申请号：US18502882
申请日：2023-11-06
Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.
Abstract: This application describes examples of a differential device, a powertrain, and a vehicle. In one example, the differential device includes a housing, three planetary gears, two side gears, and at least one window. Each of the three planetary gears is mounted on an inner wall of the housing through a pin shaft, the three planetary gears are disposed spaced from each other along a circumferential direction of the housing. The two side gears are disposed on two sides of the three planetary gears along the axial direction of the housing and meshed with the three planetary gears. The main reduction gear drives the housing to rotate around the axial direction of the housing, so that the three planetary gears drive the two side gears to drive two drive shafts respectively.
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公开(公告)号：US20250015730A1
公开(公告)日：2025-01-09
申请号：US18763267
申请日：2024-07-03
Applicant: Huawei Digital Power Technologies Co., Ltd.
IPC: H02M7/5387 , H02M1/08 , H02M1/36
Abstract: A converter and a control method of sending a pulse width modulation (PWM) driver gating signal thereof. When an alternating current voltage output by the converter is in an O area, the converter may be controlled to switch between an upper half-bridge arm straight-through mode and a lower half-bridge arm straight-through mode. In this way, it can be ensured that there is a freewheeling path for a current in an inductive component, and a problem that a switching transistor of a secondary-side circuit is in a straight-through state is avoided.
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公开(公告)号：US20250010730A1
公开(公告)日：2025-01-09
申请号：US18763284
申请日：2024-07-03
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Yang CHENG , Ningbo FENG , Wei MO
Abstract: A direct current charging apparatus, a powertrain, and an electric vehicle. The direct current charging apparatus which includes a direct current charging interface, a switch module, and a direct current voltage conversion module is configured to charge power battery of the electric vehicle. The direct current charging interface is configured to connect a positive electrode and a negative electrode of a power supply apparatus and a positive electrode and a negative electrode of the power battery to form a charging loop. The switch module is configured to connect or disconnect the charging loop. The direct current voltage conversion module is configured to output a preset direct current voltage to the positive electrode and the negative electrode of the power supply apparatus. When the charging loop between the power battery and a charging pile is connected again, charging can be resumed without re-swiping card/re-scanning QR code.
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公开(公告)号：US12184117B2
公开(公告)日：2024-12-31
申请号：US18161336
申请日：2023-01-30
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Chuntao Zhang
Abstract: This application provides an uninterruptible power supply. An input end of the uninterruptible power supply is connected to a power supply by using a first on-off control module. A controller of the uninterruptible power supply is configured to: after receiving a first control signal sent by the first on-off control module, control a current in a circuit connecting the uninterruptible power supply and the first on-off control module to be zero. An output end of the uninterruptible power supply is connected to a load by using a second on-off control module. A controller of the uninterruptible power supply is configured to: after receiving a second control signal sent by the second on-off control module, control the uninterruptible power supply to be turned off.
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