Isolation of short-circuited sensor cells for high-reliability operation of sensor array
    1.
    发明授权
    Isolation of short-circuited sensor cells for high-reliability operation of sensor array 有权
    隔离传感器阵列的高可靠性操作的短路传感器单元

    公开(公告)号:US07293462B2

    公开(公告)日:2007-11-13

    申请号:US11028789

    申请日:2005-01-04

    CPC classification number: H04R23/00 B06B1/0292

    Abstract: A device comprising an array of sensors and a multiplicity of bus lines, each sensor being electrically connected to a respective bus line and comprising a respective multiplicity of groups of micromachined sensor cells, the sensor cell groups of a particular sensor being electrically coupled to each other via the bus line to which that sensor is connected, each sensor cell group comprising a respective multiplicity of micromachined sensor cells that are electrically interconnected to each other and not switchably disconnectable from each other, the device further comprising means for isolating any one of the sensor cell groups from its associated bus line and in response to any one of the micromachined sensor cells of that sensor cell group being short-circuited to ground. In one implementation, the isolating means comprise a multiplicity of fuses. In another implementation, the isolating means comprise a multiplicity of short circuit protection modules, each module comprising a current sensor circuit and an electrical isolation switch.

    Abstract translation: 一种包括传感器阵列和多条总线线路的设备,每个传感器电连接到相应的总线,并且包括相应多个微机械传感器单元组,特定传感器的传感器单元组彼此电耦合 通过连接该传感器的总线,每个传感器单元组包括彼此电互连并且不可切换地彼此分离的相应多个微机械传感器单元,该装置还包括用于隔离传感器 来自其相关联的总线线路的单元组以及响应于该传感器单元组的微机械传感器单元中的任一个被短路到地。 在一个实施方案中,隔离装置包括多个保险丝。 在另一实施方案中,隔离装置包括多个短路保护模块,每个模块包括电流传感器电路和电隔离开关。

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