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Patent Agency Ranking
公开(公告)号：US11862531B2
公开(公告)日：2024-01-02
申请号：US17668158
申请日：2022-02-09
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Yankun Xu , Yue Chen , Yang Zhao , Ruoyang Du
CPC classification number: H01L23/4006 , H05K1/0204 , H05K1/0209 , H01L2023/405 , H05K2201/066
Abstract: This disclosure provides a power device, a power device assembly, and a related apparatus. The power device includes a package body and a plurality of pins. The package body includes a substrate structure, a semiconductor die, and a molded package. The semiconductor die is disposed on the substrate structure. The substrate structure includes a heat dissipation surface connectable to a heat sink. A first end of each pin is connected to the substrate structure. The molded package covers the semiconductor die and the substrate structure excluding the heat dissipation surface. A second end of each pin and the heat dissipation surface are both uncovered from the molded package. The second end of each pin includes a mounting surface connectable to a circuit board through a surface-mount technology to form an electrical connection.
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公开(公告)号：US11518246B2
公开(公告)日：2022-12-06
申请号：US17583744
申请日：2022-01-25
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhiyin Chen , Yue Chen , Xueliang Zhang
Abstract: An electric drive system is connected to power batteries and includes a bus, a three-level inverter circuit, a direct current (DC)-DC conversion circuit, and a controller. The bus includes a positive bus and a negative bus. The three-level inverter circuit includes a first bus capacitor and a second bus capacitor. The first bus capacitor is connected between the positive bus and a bus neutral point, and the second bus capacitor is connected between the negative bus and the bus neutral point. The DC-DC conversion circuit includes a first conversion circuit and a second conversion circuit, an input terminal of the first conversion circuit is connected in parallel to the first bus capacitor, and an input terminal of the second conversion circuit is connected in parallel to the second bus capacitor.
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公开(公告)号：US12047025B2
公开(公告)日：2024-07-23
申请号：US18149261
申请日：2023-01-03
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Yue Chen , Xueliang Zhang , Ningbo Feng
Abstract: An electric drive system is connected to a power battery pack to drive a motor, the motor includes an exciting winding, and the electric drive system includes a bus, a three-level inverter circuit, an electric excitation circuit, and a controller. The bus includes a positive bus and a negative bus. The three-level inverter circuit includes a first bus capacitor and a second bus capacitor. The first bus capacitor is connected between the positive bus and a bus midpoint, and the second bus capacitor is connected between the negative bus and the bus midpoint. A first input terminal of the electric excitation circuit is connected in parallel to the first bus capacitor, a second input terminal of the electric excitation circuit is connected in parallel to the second bus capacitor, and an output terminal of the electric excitation circuit is connected to the exciting winding of the motor.
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公开(公告)号：US20220144093A1
公开(公告)日：2022-05-12
申请号：US17583744
申请日：2022-01-25
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Zhiyin Chen , Yue Chen , Xueliang Zhang
Abstract: This application provides an electric drive system, a powertrain, and an electric vehicle. The electric drive system is connected to power batteries and includes: a bus, a three-level inverter circuit, a DC-DC conversion circuit, and a controller. The bus includes a positive bus and a negative bus. The three-level inverter circuit includes a first bus capacitor and a second bus capacitor. The first bus capacitor is connected between the positive bus and a bus neutral point, and the second bus capacitor is connected between the negative bus and the bus neutral point. The DC-DC conversion circuit includes a first conversion circuit and a second conversion circuit, an input terminal of the first conversion circuit is connected in parallel to the first bus capacitor, and an input terminal of the second conversion circuit is connected in parallel to the second bus capacitor.
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公开(公告)号：US20220270952A1
公开(公告)日：2022-08-25
申请号：US17668158
申请日：2022-02-09
Applicant: Huawei Digital Power Technologies Co., Ltd.
Inventor： Yankun Xu , Yue Chen , Yang Zhao , Ruoyang Du
Abstract: This disclosure provides a power device, a power device assembly, and a related apparatus. The power device includes a package body and a plurality of pins. The package body includes a substrate structure, a semiconductor die, and a molded package. The semiconductor die is disposed on the substrate structure. The substrate structure includes a heat dissipation surface connectable to a heat sink. A first end of each pin is connected to the substrate structure. The molded package covers the semiconductor die and the substrate structure excluding the heat dissipation surface. A second end of each pin and the heat dissipation surface are both uncovered from the molded package. The second end of each pin includes a mounting surface connectable to a circuit board through a surface-mount technology to form an electrical connection.
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