Semiconductor module and power conversion device

    公开(公告)号:US11063025B2

    公开(公告)日:2021-07-13

    申请号:US16632029

    申请日:2018-08-27

    IPC分类号: H01L25/07 H01L23/00 H02P27/06

    摘要: Gates of a plurality of semiconductor switching elements are electrically connected to a common gate control pattern by gate wires. Sources of the plurality of semiconductor switching elements are electrically connected to a common source control pattern by source wires. The gate control pattern is disposed to interpose the source control pattern between the gate control pattern and each of the plurality of semiconductor switching elements that are connected in parallel and that operate in parallel. Hence, each of the gate wires becomes longer than each of the source wires, and has an inductance larger than the source wire. Accordingly, gate oscillation is reduced or suppressed in the plurality of semiconductor switching elements that are connected in parallel and that operate in parallel.

    Power semiconductor module
    2.
    发明授权

    公开(公告)号:US10134718B2

    公开(公告)日:2018-11-20

    申请号:US15738167

    申请日:2016-06-28

    摘要: A power semiconductor module including a positive-side switching device and a positive-side diode device which are mounted on a positive-side conductive pattern, and a negative-side switching device and a negative-side diode device which are mounted on an output-side conductive pattern. When an insulating substrate is viewed in plan view, the positive-side diode device and the negative-side diode device are disposed between the positive-side switching device and the negative-side switching device, and the negative-side diode device is disposed closer to the positive-side switching device than the positive-side diode device is.

    Semiconductor module and power conversion apparatus

    公开(公告)号:US11271043B2

    公开(公告)日:2022-03-08

    申请号:US16488752

    申请日:2018-04-11

    摘要: An emitter interconnection connecting the emitter of a semiconductor switching element to a negative electrode is different in one or both of length and width from an emitter interconnection connecting the emitter of a semiconductor switching element to the negative electrode. At the time of switching, an induced electromotive force is generated at a gate control wire, or at a gate pattern, or at an emitter wire, by at least one of a current flowing through a positive electrode and a current flowing through the negative electrode, so as to reduce the difference between the emitter potential of the semiconductor switching element and the emitter potential of the semiconductor switching element caused by the difference.

    Drive control device for power semiconductor element, and power module

    公开(公告)号:US12132472B2

    公开(公告)日:2024-10-29

    申请号:US17921367

    申请日:2020-06-01

    摘要: A classification circuit generates first information for classifying an operating state of a power semiconductor element into one of a plurality of predetermined operating regions. A selector circuit generates second information for selecting a plurality of modes with different switching speeds, based on a user input. A characteristic control circuit stores a drive adjustment signal in advance for each of combinations of the operating regions and the modes and outputs the drive adjustment signal in a combination of one operating region and one mode that is selected in accordance with the first information and the second information. A gate drive circuit charges/discharges a gate at a charge rate and a discharge rate variably set in accordance with the drive adjustment signal from the characteristic control circuit, at the time of on/off of the power semiconductor element.

    Power switching apparatus
    6.
    发明授权

    公开(公告)号:US10651839B2

    公开(公告)日:2020-05-12

    申请号:US15747542

    申请日:2016-08-04

    摘要: A power switching apparatus includes a plurality of semiconductor switching devices connected in parallel with each other and a plurality of balance resistor units. The plurality of balance resistor units each have one end connected to a control electrode of an associated semiconductor switching device and the other end to which a common control signal is input. Each balance resistor unit is configured to have a resistance value switched between different values depending on whether the plurality of semiconductor switching devices are turned on or turned off in accordance with the control signal.

    Power semiconductor element driving circuit

    公开(公告)号:US10027218B2

    公开(公告)日:2018-07-17

    申请号:US15322763

    申请日:2015-01-21

    摘要: A power semiconductor device driving circuit has a capacitor whose one end is connected with a first or a second main electrode of a power semiconductor device, a first switch for charging the capacitor and a control electrode of the power semiconductor device with electric charges, and a second switch for discharging electric charges; in the case where when the first switch turns on, the control electrode and the capacitor are charged with electric charges through different resistors, electric charges are discharged from the control electrode and the capacitor through one and the same resistor when the second switch turns on; in the case where when the first switch turns on, the control electrode and the capacitor are charged with electric charges through one and the same resistor, electric charges are discharged from the control electrode and the capacitor through different resistors when the second switch turns on.