3.
    发明专利
    未知

    公开(公告)号:SE9802908D0

    公开(公告)日:1998-08-31

    申请号:SE9802908

    申请日:1998-08-31

    Abstract: An electric circuit comprises a plurality of high power switching services connected in series and adapted to be controlled to be all conducting or blocking substantially simultaneously act together as a single switch and each holding a part of a high voltage to be held by the switch in the blocking state of the switching devices. Each switching device has an avalanche diode of SiC connected in anti-parallel therewith and adapted to start to conduct current when reverse biased as of a predetermined voltage limit for preventing that the voltage across the respective switching device exceeds such limit.

    4.
    发明专利
    未知

    公开(公告)号:SE9603432D0

    公开(公告)日:1996-09-20

    申请号:SE9603432

    申请日:1996-09-20

    Abstract: A method and a device for controlling a switching operation consisting of a turn on or a turn off operation in a voltage controlled power transistor is provided. At least one current source is arranged at the control electrode of the power transistor. The at least one current source controls the recharging of at least one of the capacitances which occurs between the control electrode of the power transistor and the main electrode of the power transistor to determine the time rate of change of at least one of the voltage and current.

    5.
    发明专利
    未知

    公开(公告)号:SE9603432L

    公开(公告)日:1998-03-21

    申请号:SE9603432

    申请日:1996-09-20

    Abstract: A method and a device for controlling a switching operation consisting of a turn on or a turn off operation in a voltage controlled power transistor is provided. At least one current source is arranged at the control electrode of the power transistor. The at least one current source controls the recharging of at least one of the capacitances which occurs between the control electrode of the power transistor and the main electrode of the power transistor to determine the time rate of change of at least one of the voltage and current.

    6.
    发明专利
    未知

    公开(公告)号:SE515457C2

    公开(公告)日:2001-08-06

    申请号:SE9603432

    申请日:1996-09-20

    Abstract: A method and a device for controlling a switching operation consisting of a turn on or a turn off operation in a voltage controlled power transistor is provided. At least one current source is arranged at the control electrode of the power transistor. The at least one current source controls the recharging of at least one of the capacitances which occurs between the control electrode of the power transistor and the main electrode of the power transistor to determine the time rate of change of at least one of the voltage and current.

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