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    Buck-boost ground leakage current power supply
    23.
    发明授权
    Buck-boost ground leakage current power supply 有权

    公开(公告)号：US11671014B2

    公开(公告)日：2023-06-06

    申请号：US17467349

    申请日：2021-09-06

    Applicant: Fabriq, Ltd.

    Inventor： Jeffrey G. Reh ,  Matthew B. O'Kelley

    IPC: H02M3/158 ,  H02M1/12 ,  H02M7/217

    CPC classification number: H02M3/1582 ,  H02M1/123 ,  H02M7/217

    Abstract: A power supply, includes: a hot node coupled to a hot wire of an AC source, and a ground node coupled to an earth ground, where a neutral wire of the source is not present; a storage component, coupled to a return node and in series with a current limiter, where the current limiter enables the storage component to charge to a voltage while limiting leakage current to a prescribed value; a low voltage power supply including a buck-boost regulator, coupled to the storage component and to a return node that provides a reference voltage, where the low voltage power supply receives the voltage and generates an output voltage on an output node that is referenced to the reference voltage; and a wireless transceiver that employs the output voltage to transmit and receive messages from one or more corresponding wireless devices.

    EMI filter and an inverter comprising the EMI filter
    25.
    发明授权
    EMI filter and an inverter comprising the EMI filter 有权

    公开(公告)号：US12095360B2

    公开(公告)日：2024-09-17

    申请号：US17835937

    申请日：2022-06-08

    Applicant: Mahle International GmbH

    Inventor： Ziga Ahec ,  Gregor Babic ,  Peter Bozic ,  Gregor Ergaver

    IPC: H02M1/44 ,  H01F17/06 ,  H01F27/24 ,  H01F27/30 ,  H02M1/12 ,  H01F17/00

    CPC classification number: H02M1/44 ,  H01F17/062 ,  H01F27/24 ,  H01F27/306 ,  H02M1/123 ,  H01F2017/0093

    Abstract: An EMI filter for an inverter may include a choke including a magnetic inner core, a magnetic outer core, and at least one conductor pair. The at least one conductor pair may include an electrically conductive positive conductor and an electrically conductive negative conductor. The inner core, the outer core, the positive conductor, and the negative conductor may extend along a longitudinal central axis of the choke. The inner core may be arranged in the outer core. The positive conductor and the negative conductor may be arranged between the inner core and the outer core. The positive conductor and the negative conductor may be arranged spaced apart from one another in a circumferential direction extending around the longitudinal central axis. A gap may be formed between the inner core, the outer core, the positive conductor, and the negative conductor, which are adjacent in the circumferential direction.

    POWER CONVERSION DEVICE, AND CONTROL METHOD
    26.
    发明公开
    POWER CONVERSION DEVICE, AND CONTROL METHOD 审中-公开

    公开(公告)号：US20240305215A1

    公开(公告)日：2024-09-12

    申请号：US18262671

    申请日：2021-12-20

    Applicant: OMRON Corporation

    Inventor： Aya MURATA ,  Takanori ISHII ,  Takayoshi TAWARAGI

    IPC: H02M7/483 ,  H02M1/00 ,  H02M1/12

    CPC classification number: H02M7/4837 ,  H02M1/0095 ,  H02M1/123

    Abstract: A power converter includes a DC capacitor circuit, a first capacitor circuit including a first flying capacitor, and a second capacitor circuit including a second flying capacitor. A controller increases or decreases a period for charging and discharging a first DC capacitor and a second DC capacitor based on a deviation of a detected voltage value of the first flying capacitor from a voltage command value and a deviation of a detected voltage value of the second flying capacitor from a voltage command value, and outputs AC power from a second output terminal connected to a node between a source terminal of a second switch and a drain terminal of a third switch in the first capacitor circuit and from a first output terminal connected to a node between a source terminal of a sixth switch and a drain terminal of a seventh switch in the second capacitor circuit.

    MOTOR-DRIVEN COMPRESSOR
    27.
    发明公开
    MOTOR-DRIVEN COMPRESSOR 审中-公开

    公开(公告)号：US20240145152A1

    公开(公告)日：2024-05-02

    申请号：US18383139

    申请日：2023-10-24

    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

    Inventor： Shun ITO ,  Kazuhiro SHIRAISHI ,  Yoshiki NAGATA ,  Takashi KAWASHIMA ,  HIROSHI FUKASAKU ,  Shunsuke AMBO

    IPC: H01F17/06 ,  H01F27/29 ,  H02M1/12

    CPC classification number: H01F17/062 ,  H01F27/292 ,  H02M1/123

    Abstract: A motor-driven compressor includes an inverter device. The inverter device includes a common mode choke coil. The common mode choke coil includes an annular core, two windings wound around the core, and an annular conductor that covers the two windings. The conductor is divided into a first metal plate and a second metal plate, which are combined to form an annular shape such that induced current flows in a circumferential direction of the conductor so as to hinder changes in leakage magnetic flux from the core. The second metal plate is thermally connected to the housing. The first metal plate is thermally connected to the second metal plate. At least one of an electrical resistance value or a thermal resistance value in a current path of the induced current is lower in the second metal plate than in the first metal plate.

    METHOD FOR CONTROLLING CONVERTER AND CONVERTER SYSTEM
    28.
    发明公开
    METHOD FOR CONTROLLING CONVERTER AND CONVERTER SYSTEM 审中-公开

    公开(公告)号：US20240106355A1

    公开(公告)日：2024-03-28

    申请号：US18468157

    申请日：2023-09-15

    Applicant: ABB Power Electronics Inc.

    Inventor： Qixue Yu ,  Ting He ,  Juan Zhang ,  Kun Dou

    IPC: H02M7/5395 ,  H02M1/08 ,  H02M1/12

    CPC classification number: H02M7/5395 ,  H02M1/081 ,  H02M1/123 ,  H02M1/126

    Abstract: Embodiments of the present disclosure provide a method for controlling a converter and a converter system. The method includes obtaining voltage signals indicating phase voltages of three phases at AC side of a converter, determining, based on the voltage signals, carrier signals of a three-phase switching branches of the converter, wherein carrier signals of two of three phases have the same phase with each other and have a different phase from a carrier signal of the rest phase of the three phases, and magnitude of a phase voltage of the rest phase is between the phase voltages of the two phases, and generating, based on the determined carrier signals and modulation wave signals of the three-phase switching branches, control signals of the three-phase switching branch.

    SYSTEMS AND METHODS FOR GALVANIC ISOLATION FOR INVERTER FOR ELECTRIC VEHICLE
    29.
    发明公开
    SYSTEMS AND METHODS FOR GALVANIC ISOLATION FOR INVERTER FOR ELECTRIC VEHICLE 审中-公开

    公开(公告)号：US20240103045A1

    公开(公告)日：2024-03-28

    申请号：US18150927

    申请日：2023-01-06

    Applicant: Delphi Technologies IP Limited

    Inventor： Srikanth Vijaykumar ,  Seyed R. Zarabadi

    IPC: G01R15/20 ,  H02M1/12 ,  H02M1/44

    CPC classification number: G01R15/20 ,  H02M1/123 ,  H02M1/44

    Abstract: A system includes an inverter including: a first galvanic isolator separating a low voltage area from a high voltage area, the first galvanic isolator having a first galvanic isolator output path; a second galvanic isolator having a second galvanic isolator output path; an amplifier connected to the first galvanic isolator via the first galvanic isolator output path, and connected to the second galvanic isolator via the second galvanic isolator output path, the amplifier having a first amplifier output path and a second amplifier output path; a comparator connected to the amplifier via the first amplifier output path and the second amplifier output path, the comparator having a first comparator output path and a second comparator output path; and a pulse reshape and envelope detector connected to the comparator via the first comparator output path and the second comparator output path.

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