1.
    发明专利
    未知

    公开(公告)号:DE102009039966A1

    公开(公告)日:2010-04-01

    申请号:DE102009039966

    申请日:2009-09-03

    Abstract: Embodiments of the invention are related to a power transistor and a method for controlling a power transistor. In one embodiment a power transistor comprises a power semiconductor body with a plurality of power transistor cells each having a control electrode and a current path. The power transistor furthermore comprises a temperature sensor formed by at least one transistor cell in the power semiconductor body whose control electrode is coupled to one electrode of the current path forming a reversed biased pn-junction.

    4.
    发明专利
    未知

    公开(公告)号:DE602005018201D1

    公开(公告)日:2010-01-21

    申请号:DE602005018201

    申请日:2005-08-17

    Abstract: The invention relates to a method and a control circuit for controlling a power MOS transistor, which has a control terminal and a load path and whose load path is connected in series with a load between voltage supply terminals, between which a power supply voltage is imposed so that a load voltage is imposed across the load and a load path voltage is imposed across the load path of the power MOS transistor. According to the invention, during a switching process when the power MOS transistor changes from a first switching state to a second switching state, there is generated a control current for the control terminal, which is dependent on the power supply voltage and on at least the load path voltage or the load voltage.

    5.
    发明专利
    未知

    公开(公告)号:DE602005006277T2

    公开(公告)日:2009-07-16

    申请号:DE602005006277

    申请日:2005-08-16

    Abstract: The invention relates to an interface circuit, comprising: - an input terminal (14) for supplying an input signal (Vin), - a controlled current sink (11), which is connected to the input terminal (14) and takes up a current from the input terminal (14) according to a transmission signal (S10), - a current measurement arrangement (12), which determines a current taken up by the current sink and furnishes a current measurement signal (S12) depending on this determined current, - a logic circuit (13), to which the current measurement signal and the input signal (Vin) are taken and which produces a signal (Sout) depending on the input signal (Vin).

    7.
    发明专利
    未知

    公开(公告)号:DE602005006277D1

    公开(公告)日:2008-06-05

    申请号:DE602005006277

    申请日:2005-08-16

    Abstract: The invention relates to an interface circuit, comprising: - an input terminal (14) for supplying an input signal (Vin), - a controlled current sink (11), which is connected to the input terminal (14) and takes up a current from the input terminal (14) according to a transmission signal (S10), - a current measurement arrangement (12), which determines a current taken up by the current sink and furnishes a current measurement signal (S12) depending on this determined current, - a logic circuit (13), to which the current measurement signal and the input signal (Vin) are taken and which produces a signal (Sout) depending on the input signal (Vin).

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