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公开(公告)号：US20240298402A1
公开(公告)日：2024-09-05
申请号：US18588614
申请日：2024-02-27
Applicant: SEG Automotive Germany GmbH
Inventor： Nima SAADAT , Timm LOHMANN , Murugaperumal DEVARAJA , Vivek Ratilal TAILOR
IPC: H05K1/02
CPC classification number: H05K1/0256 , H05K1/0203 , H05K2201/10272
Abstract: A half-bridge switch arrangement includes a high-side switch having a plurality of parallel-connected first semiconductor switching elements, a low-side switch having a plurality of parallel-connected second semiconductor switching elements, a positive busbar to which a terminal of each of the first semiconductor switching elements of the high-side switch is electrically connected, a negative busbar to which a terminal of each of the second semiconductor switching elements of the low-side switch is electrically connected, and a heat sink, the heat sink having a first section and a second section disposed on the first section, the first semiconductor switching elements and the second semiconductor switching elements being disposed on the second section, wherein the positive busbar and the negative busbar are disposed one above the other on an upper surface of the first section.
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公开(公告)号：US20250055384A1
公开(公告)日：2025-02-13
申请号：US18789860
申请日：2024-07-31
Applicant: SEG Automotive Germany GmbH
Inventor： Nima SAADAT , Hossein ABEDINI , Eric PERTERMANN , Andreas WINTERL , Thomas KAISER , Benjamin KARL , Markus JETZ
Abstract: A half-bridge switch arrangement has a plurality of parallel-connected half-bridges, each half-bridge having a first semiconductor switching element and a second semiconductor switching element, has a first busbar, to which a first terminal of each of the first semiconductor switching elements is electrically connected, a second busbar, to which a second terminal of each of the first semiconductor switching elements and a first terminal of each of the second semiconductor switching elements are electrically connected, and has a third busbar, to which a second terminal of each of the second semiconductor switching elements is electrically connected. The first and second busbars are toothed and the semiconductor switching elements are arranged on the teeth, the teeth being arranged alternately. The third busbar is arranged above the semiconductor switching elements, and a heat sink is arranged below the first and second busbars.
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公开(公告)号：US20250052623A1
公开(公告)日：2025-02-13
申请号：US18770216
申请日：2024-07-11
Applicant: SEG Automotive Germany GmbH
Inventor： Nima SAADAT , Andreas WINTERL , Mathis LURTZ
Abstract: An assembly includes a semiconductor component and a temperature sensor unit for measuring a temperature of the semiconductor component, wherein the semiconductor component comprises a recess, wherein the temperature sensor unit comprises a housing element and a temperature sensor element, wherein the housing element comprises a first housing section and a second housing section, wherein the second housing section protrudes from the first housing section, wherein the temperature sensor element is at least partially located in the second housing section, the second housing section projecting from the first housing section, the temperature sensor element being arranged at least partially in the second housing section, the second housing section being arranged in the recess of the semiconductor component, and a switch arrangement having at least one such assembly and at least one further semiconductor component.
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公开(公告)号：US20210141022A1
公开(公告)日：2021-05-13
申请号：US17096395
申请日：2020-11-12
Applicant: SEG Automotive Germany GmbH
Inventor： Henning STÖCKLEIN , Kevin KUBELKA , Jens MÜLLER , Peng QIAN , Matthias CWIK , Nima SAADAT
IPC: G01R31/36 , G01R31/388
Abstract: The present invention relates to a method for determining the state of charge of a vehicle battery (150) of a vehicle, a starter relay of a starting device (100) for an internal combustion engine of the vehicle for engaging a starter pinion in a ring gear of the internal combustion engine having a first winding (121) and a second winding (122) which can be controlled independently of one another, the first winding (121) being controlled in predetermined control states and voltage values that are established in the course of these control states being determined and the state of charge of the vehicle battery (150) being determined depending on the determined voltage values.
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公开(公告)号：US20250001885A1
公开(公告)日：2025-01-02
申请号：US18749993
申请日：2024-06-21
Applicant: SEG Automotive Germany GmbH
Inventor： Nima SAADAT
Abstract: An electrical machine unit includes an electrical machine and a power converter, the electrical machine having a plurality of regular phase windings and an additional inductance, the additional inductance being connected to at least one of the plurality of regular phase windings. The power converter includes a plurality of half-bridges, each of which is connected to one of the plurality of regular phase windings of the electrical machine, the electrical machine unit having DC voltage terminals (B+, B−) for connection to an energy storage (150) and DC side switches (180+, 180−), wherein DC side terminals (146+, 146−) of the plurality of half-bridges are each connected to each other and are each connectable to or disconnectable from a respective one of the DC voltage terminals via one of the DC side switches.
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Patent Agency Ranking
公开(公告)号：US20240339948A1
公开(公告)日：2024-10-10
申请号：US18627330
申请日：2024-04-04
Applicant: SEG Automotive Germany GmbH
Inventor： Nima SAADAT
IPC: H02P27/06
CPC classification number: H02P27/06
Abstract: A power supply circuit in an inverter for driving an electrical machine includes a high-voltage branch with a high-voltage level, a low-voltage branch with a low-voltage level and a discharge branch with a discharge voltage level, wherein the high-voltage level is higher than the low-voltage level and the discharge voltage level. The high-voltage branch can be connected to the low-voltage branch via an operating DC/DC converter, and to the discharge branch via a discharge DC/DC converter. The discharge branch is different from the low-voltage branch. A low-voltage energy storage device is connected in the discharge branch. A method for using the power supply circuit includes, in a first operating mode, conducting current from the high-voltage branch via the operating DC/DC converter into the low-voltage branch, and in a second operating mode, conducting current from the high-voltage branch via the discharge DC/DC converter into the discharging branch.
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公开(公告)号：US20240339947A1
公开(公告)日：2024-10-10
申请号：US18626168
申请日：2024-04-03
Applicant: SEG Automotive Germany GmbH
Inventor： Nima SAADAT , Murugaperumal DEVARAJA
CPC classification number: H02P27/06 , B60R16/03 , H02P2201/07
Abstract: A power supply circuit in an inverter for driving an electrical machine has a high-voltage branch with a high-voltage level and a low-voltage branch with a low-voltage level, the high-voltage level being higher than the low-voltage level, the high-voltage branch being connected to the low-voltage branch via an operating DC/DC converter, the low-voltage branch having a supply branch and a mains branch, the high-voltage branch being connected to the mains branch via a discharge DC/DC converter. A method for operating the power supply circuit includes, in a first operating mode conducting current from the high-voltage branch via the operating DC/DC converter into the supply branch, and in a second operating mode, conducting current from the high-voltage branch via the discharge DC/DC converter into the mains branch.
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公开(公告)号：US20240298417A1
公开(公告)日：2024-09-05
申请号：US18588593
申请日：2024-02-27
Applicant: SEG Automotive Germany GmbH
Inventor： Nima SAADAT , Timm LOHMANN , Kaveh HAGHVERDI , Murugaperumal DEVARAJA
CPC classification number: H05K7/14329 , H05K1/0263 , H05K7/20909 , H05K2201/10272
Abstract: A half-bridge switch arrangement has a high-side switch having a plurality of parallel-connected first semiconductor switching elements, a low-side switch having a plurality of parallel-connected second semiconductor switching elements, a positive busbar, to which a terminal of each of the first semiconductor switching elements of the high-side switch is electrically connected, a negative busbar, to which a terminal of each of the second semiconductor switching elements of the low-side switch is electrically connected, and a heat sink, the heat sink having a recess and two plateau sections which are located in an elevated position relative to the recess, the recess being bounded by the two plateau section, wherein the first semiconductor switching elements and the second semiconductor switching elements are arranged on an upper side of the two plateau sections, wherein the positive busbar and the negative busbar are arranged one above the other within the recess.
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公开(公告)号：US20240178781A1
公开(公告)日：2024-05-30
申请号：US18524293
申请日：2023-11-30
Applicant: SEG Automotive Germany GmbH
Inventor： Nima SAADAT , Murugaperumal DEVARAJA , Christian RIECKEN , Timm LOHMANN , Kaveh HAGHVERDI , Christian STIGLER , Felix EGBERT
Abstract: An activation system for operating an electric machine includes a control circuit device for activating a rotor winding, and having a highside switch, a semiconductor component, and a de-excitation switch. A first terminal of the rotor winding is connectable to a positive supply terminal via the highside switch and to a negative supply terminal via the semiconductor component. A second terminal of the rotor winding is connectable to the negative supply terminal via the de-excitation switch. The activation system is configured to attain a secure state, when at least one fault is present, by disconnecting the rotor winding from the positive supply terminal and/or by de-exciting the rotor winding. A diagnosis may be carried out using an additional highside switch supplied with power via another activation circuit, and/or a fault detection circuit is provided, whose output signal does not change during a de-excitation.
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10.发明申请公开(公告)号：US20250007437A1
公开(公告)日：2025-01-02
申请号：US18753076
申请日：2024-06-25
Applicant: SEG Automotive Germany GmbH
Inventor： Nima SAADAT
IPC: H02P27/06 , H02P29/024
Abstract: An inverter for controlling an electrical machine, the inverter having a high-voltage branch, a low-voltage branch and a backup supply branch, an operating DC/DC converter, which is connected on the one hand to the high-voltage branch and on the other hand to the low-voltage branch, a backup supply DC/DC converter, which is connected on the one hand to the low-voltage branch and on the other hand to the backup supply branch, and an inverter circuit for connecting the high-voltage branch to AC voltage terminals for the electrical machine. The inverter circuit and a safety control device are supplied with energy from the low-voltage branch and the safety control device may be set up to switch the inverter circuit to a safe state when a shutdown situation occurs, wherein the inverter circuit and the safety control device are supplied or can be supplied with energy from the backup supply branch.
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