OPTICAL SENSOR ARRANGEMENT AND METHOD FOR GENERATING AN ANALOG OUTPUT SIGNAL
    1.
    发明申请
    OPTICAL SENSOR ARRANGEMENT AND METHOD FOR GENERATING AN ANALOG OUTPUT SIGNAL 有权
    光学传感器布置和产生模拟输出信号的方法

    公开(公告)号:US20160079447A1

    公开(公告)日:2016-03-17

    申请号:US14850908

    申请日:2015-09-10

    Applicant: ams AG

    Abstract: An optical sensor arrangement (10) comprises a light sensor (11) that is connected to a summation node (13) and is designed for generating a sensor current (S2), a current source (S2) connected to the summation node (13) and designed to provide a source current (S3), and an integrator (21) that is coupled to the summation node (13) and is designed for generating a first value (VP1) of an integrator signal (S6) by integrating during a first phase (P1) and for generating a second value (VP2) of the integrator signal (S6) by integrating during a second phase (P2). The optical sensor arrangement (10) comprises a sum and hold circuit (31) that is coupled to the integrator (21) and is designed to generate an analog output signal (S7) as a function of a difference of the first value (VP1) and the second value (VP2) of the integrator signal (S6).

    Abstract translation: 光学传感器装置(10)包括连接到求和节点(13)并被设计用于产生传感器电流(S2)的光传感器(11),连接到求和节点(13)的电流源(S2) 并且被设计成提供源极电流(S3),以及积分器(21),其被耦合到所述求和节点(13),并被设计成通过在第一和第二信号中积分来产生积分器信号(S6)的第一值(VP1) 相位(P1),并通过在第二阶段(P2)期间积分来产生积分器信号(S6)的第二值(VP2)。 光传感器装置(10)包括耦合到积分器(21)的和和保持电路(31),并被设计成根据第一值(VP1)的差值产生模拟输出信号(S7) 和积分器信号的第二值(VP2)(S6)。

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