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公开(公告)号：US20240425024A1
公开(公告)日：2024-12-26
申请号：US18826631
申请日：2024-09-06
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Jiayu TANG , Chongxi HUANG , Hui NI
IPC: B60T8/26 , B60K7/00 , B60K17/354 , B60K17/356 , B60L7/26 , B60L15/20 , B60T8/171 , B60T8/172
Abstract: This application provides a braking system, a control apparatus, and an electric vehicle. The braking system includes a controller and four actuators. Each actuator includes a brake disc. The braking system is configured to adjust, based on temperatures of four brake discs, braking force output by the four actuators. The controller is configured to control an actuator corresponding to a brake disc with a too high temperature to reduce braking force output, or is configured to control an actuator corresponding to a brake disc with a too low temperature to increase braking force output.
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公开(公告)号：US20240424929A1
公开(公告)日：2024-12-26
申请号：US18829392
申请日：2024-09-10
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Eduardo FACANHA DE OLIVEIRA , Ismael HERRERO AOULAD , Daniel GAONA
Abstract: The disclosure provides methods and a power converter arrangement for converting an alternating current (AC) voltage into a direct current (DC) voltage. The power converter arrangement includes: an AC-DC conversion stage being configured to convert an AC voltage into a first DC link voltage at a first DC link and into a second DC link voltage at a second DC link; a DC-DC conversion stage connected to the AC-DC conversion stage, the DC-DC conversion stage being configured to provide the DC voltage based on the first DC link voltage and the second DC link voltage; and a partial-power DC-DC converter coupled between the AC-DC conversion stage and the DC-DC conversion stage, the partial-power DC-DC converter being configured to exchange power between the first DC link and the second DC link.
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253.发明授权公开(公告)号：US12176751B2
公开(公告)日：2024-12-24
申请号：US18158910
申请日：2023-01-24
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhou Shu , Chuntao Zhang
Abstract: This application discloses a non-current equalization UPS apparatus, a current distribution method, and a parallel UPS system. The current distribution method may be applied to any UPS apparatus in a parallel UPS system. A current proportion of a first current output by the any UPS apparatus in a total output current of the parallel UPS system is positively related to a capacity proportion of an available battery capacity of a battery string correspondingly connected to the any UPS apparatus in a total available battery capacity of the parallel UPS system. Therefore, a system backup time of the parallel UPS system can be prolonged, and resource utilization of a battery string with a large available battery capacity can be improved.
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公开(公告)号：US12176655B2
公开(公告)日：2024-12-24
申请号：US17683767
申请日：2022-03-01
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Kai Yin , Cheng Ma , Xiaoke Ran , Wei Guo
IPC: H01R13/642 , H02B1/056 , H02B1/20 , H02H3/08
Abstract: The power distribution component is configured to connect to a power distribution box in a pluggable manner. A main body is provided with a first power terminal, a signal terminal, and a second power terminal that are arranged along a first direction. The first power terminal is configured to electrically connect to a first power busbar of the power distribution box, the signal terminal is configured to electrically connect to a signal busbar of the power distribution box, and the second power terminal is configured to electrically connect to a second power busbar of the power distribution box. Polarities of the first power terminal and the second power terminal are opposite. An end, facing away from the main body, of the mistake proofing structure is provided with an abutting surface, configured to abut against the signal busbar when the power distribution component is reversely inserted into the power distribution box.
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公开(公告)号：US12172532B2
公开(公告)日：2024-12-24
申请号：US17666800
申请日：2022-02-08
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Xiaode Yin , Shaohua Wang , Jinhua Chen
Abstract: An electrically excited motor drive system is integrated with an on-board charger (OBC), so that a power supply circuit that is in an electric vehicle and that is configured to drive an electrically excited motor can be integrated with an OBC of a dual active bridge (DAB) type. When a control component controls a switch circuit, the electrically excited motor drive system obtained after integration can separately implement a function of the power supply circuit or a function of the charging circuit in different working modes. In addition, when the electrically excited motor drive system is in different working modes, some circuits are further reused through time division. This addresses a problem that the power supply circuit cannot be integrated with the OBC of the DAB type, to reduce circuit complexity and costs of the electric vehicle.
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Patent Agency Ranking
公开(公告)号：US20240421235A1
公开(公告)日：2024-12-19
申请号：US18813582
申请日：2024-08-23
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Yi YU , Chia Fu LIU , Yuru WANG , Bo GAO , Longgu TANG , Xin WANG , Dongguang ZHAO , Shijin LUO
Abstract: A semiconductor device and a semiconductor device manufacturing method. The semiconductor device includes: a substrate; an epitaxial layer, located on one side of the substrate, where a doped region is formed on a surface that is of the epitaxial layer and that is away from the substrate, and the epitaxial layer includes an active region and a termination region that surrounds the active region; a passivation layer, covering the termination region and on which a window corresponding to the active region is formed; and a metal layer, covering the window and an inner edge that is of the passivation layer and that forms the window, and forming a schottky contact with the active region in the window.
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公开(公告)号：US12169428B2
公开(公告)日：2024-12-17
申请号：US17735608
申请日：2022-05-03
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhuyong Huang , Xiaofei Zhang , Zhengdong Jiang
Abstract: Embodiments of this application disclose a power supply apparatus, a power supply system, and a data center designed to reduce the number of power conversion steps, equipment costs, and circuit loss. The power supply apparatus includes: a solid-state transformer configured to convert an alternating current into a first direct current; a first direct current/direct current converter, coupled to the solid-state transformer and configured to convert the first direct current into a second direct current; an energy storage component, coupled to the first direct current/direct current converter and configured to perform energy storage on the second direct current; and a second direct current/direct current converter, coupled to the first direct current/direct current converter and configured to convert the second direct current into a third direct current, where the third direct current is used to supply power to a load.
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公开(公告)号：US20240413745A1
公开(公告)日：2024-12-12
申请号：US18810063
申请日：2024-08-20
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhengang Song
Abstract: A voltage converter includes a transformer, a primary-side circuit, and a secondary-side circuit. The primary-side circuit includes a switching transistor. The secondary-side circuit includes a first circuit loop and a second circuit loop. The first circuit loop includes a secondary-side winding of the transformer, a first switch unit, and a first energy storage unit. The second circuit loop includes a secondary-side winding of the transformer, the first energy storage unit, a second switch unit, and a second energy storage unit. When the switching transistor is turned on, the first switch unit is turned on and the second switch unit is not turned on; and when the switching transistor is turned off, the second switch unit is turned on and the first switch unit is not turned on.
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公开(公告)号：US12165821B2
公开(公告)日：2024-12-10
申请号：US17896527
申请日：2022-08-26
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Xiaokang Tian , Taixian Chen , Fugao Zhao
Abstract: A contact apparatus includes a fixed contact and a moving contact component. The moving contact component includes a push rod, a contact bracket, an insulated sleeve, a moving contact, and a contact spring. The insulated sleeve is fixedly sleeved on a first end of the push rod, a second end of the push rod is configured to connect a drive apparatus, the contact bracket is fixedly sleeved on the insulated sleeve, the moving contact and the contact spring are both flexibly sleeved on the insulated sleeve, the contact spring elastically abuts between the moving contact and the contact bracket, the moving contact and the fixed contact are disposed relative to each other in an extension direction of the push rod, and the moving contact can be driven by the push rod to be connected to the fixed contact.
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公开(公告)号：US20240388196A1
公开(公告)日：2024-11-21
申请号：US18655977
申请日：2024-05-06
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Yang Yan
Abstract: A power converter includes a plurality of direct current terminals, a plurality of temperature detection units, a plurality of direct current/direct current (DC/DC) conversion circuits, at least one direct current/alternating current (DC/AC) conversion circuit, and a controller. The temperature detection unit is configured to detect a temperature of the direct current terminal. When a highest temperature value in temperatures of the plurality of direct current terminals is greater than a first alarm threshold, a current value of an input current of at least one DC/DC conversion circuit is controlled to decrease. If the highest temperature value decreases to be less than or equal to a first safety threshold after the current value of the input current of the at least one DC/DC conversion circuit is decreased, a signal indicating that the direct current terminal corresponding to the at least one DC/DC conversion circuit is abnormal is output.
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