Electronic circuit
    1.
    发明授权
    Electronic circuit 失效
    电子电路

    公开(公告)号:US5612664A

    公开(公告)日:1997-03-18

    申请号:US308721

    申请日:1994-09-19

    CPC分类号: H01C17/22

    摘要: An electronic circuit in which resistors R.sub.0 . . . R.sub.n+m are coupled in series with fusible cut-outs Q.sub.0 . . . Q.sub.n+m and in which at least one fusible cut-out Q.sub.n+1 . . . Q.sub.n+m is bridged by an additional resistor R.sub.n+1 ' . . . R.sub.n+m '. Each of the fusible cut-outs Q.sub.0 . . . Q.sub.n+m can be blown from a conductive to a non-conductive state. The total conductance Y.sub.total of the electronic circuit can thus be adjusted by targeted blowing of individual ones of the fusible cut-outs Q.sub.0 . . . Q.sub.n+m.

    摘要翻译: 一种电路,其中电阻器R0。 。 。 Rn + m与易熔断路器Q0串联耦合。 。 。 Qn + m,并且其中至少一个可熔断口Qn + 1。 。 。 Qn + m由附加电阻Rn + 1'桥接。 。 。 Rn + m'。 每个熔断器Q0。 。 。 Qn + m可以从导电状态吹到非导通状态。 因此,可以通过针对各个可熔切口Q0的目标吹送来调整电子电路的总电导率Ytotal。 。 。 Qn + m。

    Determining the temperature of an exhaust gas sensor by means of calibrated internal resistance measurement
    3.
    发明授权
    Determining the temperature of an exhaust gas sensor by means of calibrated internal resistance measurement 有权
    通过校准的内阻测量来确定废气传感器的温度

    公开(公告)号:US06939037B2

    公开(公告)日:2005-09-06

    申请号:US10399152

    申请日:2002-07-06

    CPC分类号: F02D41/1496

    摘要: For achieving a highest possible measuring accuracy of a circuit for measuring the internal resistance of an exhaust-gas sensor, a method and a circuit for measuring the internal resistance R1 (10) of an electrochemical cell (12) are provided for determining the temperature of an exhaust-gas sensor, especially of a motor vehicle. The circuit is provided with the objective to improve the control to a constant temperature to therefore also improve the performance of the exhaust-gas sensor. A measurement current I_Mess (20) is applied to the internal resistance R1 (10) of the electrochemical cell (12) and a resulting first voltage is detected. A switchover to a reference resistor R2 takes place from time to time or at regular time intervals. With a switchover to the reference resistor R2, the resulting second voltage is stored and thereafter is applied as a reference value for the measurement of the internal resistance R1 (10). The switchover (18) to the reference resistor R2 takes place, for example, via force/sense lines.

    摘要翻译: 为了实现用于测量排气传感器的内部电阻的电路的最高测量精度,提供了用于测量电化学电池(12)的内部电阻R 1(10)的方法和电路,用于确定温度 的废气传感器,特别是机动车辆。 该电路的目的是改善对恒温的控制,从而也提高废气传感器的性能。 将测量电流I_Mess(20)施加到电化学电池(12)的内部电阻R 1(10),并且检测到所得到的第一电压。 对参考电阻R 2的切换是不时或以规律的时间间隔进行的。 通过切换到参考电阻器R 2,存储所得到的第二电压,然后施加作为用于测量内部电阻R 1(10)的参考值。 例如,通过力/感测线进行到参考电阻器R 2的切换(18)。

    Damping circuit for a two-wire bus system
    5.
    发明授权
    Damping circuit for a two-wire bus system 有权
    二线总线系统阻尼电路

    公开(公告)号:US06639774B1

    公开(公告)日:2003-10-28

    申请号:US09601784

    申请日:2000-11-20

    IPC分类号: H02H318

    摘要: A two-wire bus system for connecting a plurality of users has at least one damping circuit for damping line resonances in the two-wire bus system with respect to a reference potential. The damping characteristic of the damping circuit is selected such that the damping only becomes operative above a preestablished reference voltage threshold1 value. In this manner, it is achieved that a useful signal is not weakened by the damping circuit, but rather resonance voltages are damped only above the threshold value. It is advantageous if each of the users of the bus system has assigned to it a damping circuit.

    摘要翻译: 用于连接多个用户的双线总线系统具有至少一个阻尼电路,用于相对于参考电位阻尼两线总线系统中的线谐振。 选择阻尼电路的阻尼特性使得阻尼仅在预先建立的参考电压阈值1值之上工作。 以这种方式,实现了有用信号不被阻尼电路削弱,而是谐振电压仅被抑制在阈值以上。 总线系统的每个用户已经分配了阻尼电路是有利的。