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2034 条记录 (耗时 0.031 秒)

    Snubber circuit, power semiconductor module, and induction heating power supply device
    1.
    发明授权
    Snubber circuit, power semiconductor module, and induction heating power supply device 有权

    公开(公告)号：US12133315B2

    公开(公告)日：2024-10-29

    申请号：US17274989

    申请日：2019-09-04

    申请人： NETUREN CO., LTD.

    发明人： Takahiko Kanai

    IPC分类号： H02M7/00 ,  H02M1/34 ,  H02M7/5387 ,  H05B6/06

    CPC分类号： H05B6/06 ,  H02M1/348 ,  H02M7/003 ,  H02M7/5387

    摘要： A snubber circuit unit for a power semiconductor module including an arm having two power semiconductor elements capable of switching which are connected in series, the power semiconductor module including a positive DC input terminal, a negative input terminal, and an output terminal which are electrically connected to the arm, the positive DC input terminal, the negative DC input terminal, and the output terminal being provided on an upper surface opposite to an installation surface of the power semiconductor module, the snubber circuit unit includes a circuit board, and a plurality of electronic components mounted on the circuit board.

    Gate driver system for detecting a short circuit condition
    3.
    发明授权
    Gate driver system for detecting a short circuit condition 有权

    公开(公告)号：US12119810B2

    公开(公告)日：2024-10-15

    申请号：US17933615

    申请日：2022-09-20

    申请人： Infineon Technologies Austria AG

    发明人： Yuqiang Qiu ,  Bin Tian

    IPC分类号： H02K17/32 ,  G01R31/52 ,  H02J7/00 ,  H02M7/5387 ,  H02P27/08 ,  H03K17/081

    CPC分类号： H03K17/08104 ,  G01R31/52 ,  H02J7/007 ,  H02M7/5387 ,  H02P27/08

    摘要： A driver system includes a first half-bridge that generates a first load current at a first output node, a second half-bridge that generates a second load current at a second output node, a first voltage charging device coupled to the first output node, and a second voltage charging device coupled to the second output node. A method of detecting a short circuit condition in the driver system includes detecting a first charging time at which a first charging voltage of the first voltage charging device is charged to a first threshold voltage; detecting a second charging time at which a second charging voltage of the second voltage charging device is charged to a second threshold voltage; and detecting the short circuit condition on a condition that a time difference between the first charging time and the second charging time is less than a time difference threshold.

    LLC resonant converter with windings fabricated on PCB
    4.
    发明授权
    LLC resonant converter with windings fabricated on PCB 有权

    公开(公告)号：US12113454B2

    公开(公告)日：2024-10-08

    申请号：US17966834

    申请日：2022-10-15

    申请人： PHIHONG TECHNOLOGY CO., LTD.

    发明人： Chun-Chen Chen ,  Jian-Hsieng Lee ,  Yao-Chun Tung

    IPC分类号： H02M1/00 ,  H02M3/00 ,  H02M3/335 ,  H02M7/48 ,  H02M7/5387 ,  H05K1/18

    CPC分类号： H02M7/4815 ,  H02M7/5387 ,  H05K1/181 ,  H02M1/0077 ,  H02M3/01 ,  H02M3/33571 ,  H02M3/33592

    摘要： An LLC resonant converter includes a switching circuit for converting a DC voltage into switching signal, a resonant tank coupled to the switching circuit to receive the switching signal and to provide a primary current, a transformer circuit coupled to the resonant tank. The transformer circuit includes a plurality of separated transformers, each has a primary side and a secondary side windings disposed on the PCB, where the primary side winding of each transformer can be selected to couple in series or in parallel with the primary side winding of other transformers to form a dynamically varied equivalent primary side winding, maintaining the turns ratio to fine-tune the resonant tank. The gain curve of the LLC converter can be adjusted by electrically coupling an external excitation inductor, a resonant capacitor or a resonant inductor to the resonant tank, according to the demand of output current.

    Coupled Inductors Inverter Topology
    7.
    发明公开
    Coupled Inductors Inverter Topology 审中-公开

    公开(公告)号：US20240291397A1

    公开(公告)日：2024-08-29

    申请号：US18655783

    申请日：2024-05-06

    申请人： Solaredge Technologies Ltd.

    发明人： Daniel Zmood ,  Ohad Fried ,  Omer Szlafsztein

    IPC分类号： H02M7/487 ,  H02M1/14 ,  H02M7/23 ,  H02M7/483 ,  H02M7/49 ,  H02M7/5387

    CPC分类号： H02M7/487 ,  H02M1/14 ,  H02M7/23 ,  H02M7/483 ,  H02M7/49 ,  H02M7/5387

    摘要： A multi-level inverter topology is disclosed. A power converter circuit converts a DC source at its input to provide an alternating current (AC) at its output. The power converter circuit may have a controller operably attached to multiple series connections of switches. The controller may control one or more of the multiple series connections of switches to convert a DC input to provide multi-level AC voltages with DC offset across two terminals of the power converter circuit. The multi-level AC voltages with DC offset may then be converted by use of a plurality of series connections of switches to provide a single-phase AC voltage at a first output terminal with respect to at least one of a neutral potential, an earth potential, or a terminal of the power converter circuit.

    Method and apparatus for absorption of high energy load feedback in degaussing applications
    9.
    发明授权
    Method and apparatus for absorption of high energy load feedback in degaussing applications 有权

    公开(公告)号：US12015356B2

    公开(公告)日：2024-06-18

    申请号：US17466598

    申请日：2021-09-03

    申请人： L3Harris Technologies, Inc.

    发明人： Constantin Stancu ,  Joaquin Gabriels

    IPC分类号： H02M7/5387 ,  H02M1/088 ,  H02M1/32 ,  H02M1/36

    CPC分类号： H02M7/5387 ,  H02M1/088 ,  H02M1/32 ,  H02M1/36

    摘要： An apparatus includes a power converter having switches coupled to input voltage rails and to opposing terminals of a coil to be energized. The switches are configured to be turned ON or OFF to conduct or block current, respectively, responsive to switch control signals. The apparatus also includes a controller to generate the switch control signals to compel the power converter to selectively operate (i) in a normal mode in which the switches are periodically turned ON and OFF to supply current from the input voltage rails to the coil to energize the coil, and (ii) in a protection mode in which first switches are continuously turned ON, and second switches are continuously turned OFF, to interrupt the current, and to circulate an initial current, flowing in the coil when the protection mode is entered, through the power converter and the coil so that the initial current decays toward zero.

    Coupled inductors inverter topology
    10.
    发明授权
    Coupled inductors inverter topology 有权

    公开(公告)号：US12003193B2

    公开(公告)日：2024-06-04

    申请号：US17993039

    申请日：2022-11-23

    申请人： Solaredge Technologies Ltd.

    发明人： Daniel Zmood ,  Ohad Fried ,  Omer Szlafsztein

    IPC分类号： H02M7/487 ,  H02M1/14 ,  H02M7/23 ,  H02M7/483 ,  H02M7/49 ,  H02M7/5387

    CPC分类号： H02M7/487 ,  H02M1/14 ,  H02M7/23 ,  H02M7/483 ,  H02M7/49 ,  H02M7/5387

    摘要： A multi-level inverter topology is disclosed. A power converter circuit converts a DC source at its input to provide an alternating current (AC) at its output. The power converter circuit may have a controller operably attached to multiple series connections of switches. The controller may control one or more of the multiple series connections of switches to convert a DC input to provide multi-level AC voltages with DC offset across two terminals of the power converter circuit. The multi-level AC voltages with DC offset may then be converted by use of a plurality of series connections of switches to provide a single-phase AC voltage at a first output terminal with respect to at least one of a neutral potential, an earth potential, or a terminal of the power converter circuit.