Sharing of external components for the control of the switching dead-time of a plurality of integrated devices cooperating in driving and R-L multiphase actuator
    2.
    发明公开
    Sharing of external components for the control of the switching dead-time of a plurality of integrated devices cooperating in driving and R-L multiphase actuator 失效
    外部元件的共享用于多种Totzeitregelung的用于驱动多相 - [R-L协作驱动集成电路

    公开(公告)号:EP0895343A1

    公开(公告)日:1999-02-03

    申请号:EP97830398.0

    申请日:1997-07-28

    CPC classification number: H02M1/38 H02M1/36 H02P8/14

    Abstract: In multiphase driving systems of electric motors in a switching mode employing distinct integrated half-bridge output stages, the use of multiple external components for each integrated half-bridge stage to implement functions of adjustment of the switching dead-time and of disabling/enabling of the half-bridge stage can be avoided and an improved matching obtained by using single external components connected in common to the dedicated pins of all the distinct integrated half-bridge output stages. This is achieved by duplicating the disabling comparator, respectfully for the power transistor of the pull-up branch and for the power transistor of the pull-down branch in each integrated half-bridge stage.

    Abstract translation: 在多阶段驱动电动马达的系统中的切换模式用人不同集成半桥输出级,对于每个集成半桥阶段使用多个外部元件来实现的开关死区时间的调整和的禁止/启用的功能 半桥级可被避免,并且通过使用共同连接到所有不同集成半桥输出级的专用引脚单个外部元件来改进匹配获得。 这是通过复制禁止比较器,用于尊敬上拉分支的功率晶体管和下拉支路的每个集成半桥级的功率晶体管来实现的。

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