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    Arrangement for the summation of products of signals
    1.
    发明授权
    Arrangement for the summation of products of signals 失效
    信号产品总和的安排

    公开(公告)号：US5745063A

    公开(公告)日：1998-04-28

    申请号：US867205

    申请日：1997-06-02

    申请人： Peter Gruber ,  Raul Cermeno ,  Heinz Lienhard

    发明人： Peter Gruber ,  Raul Cermeno ,  Heinz Lienhard

    IPC分类号： G01R21/133 ,  G06F7/60 ,  G06G7/161 ,  G06J1/00 ,  H03M3/00

    CPC分类号： G06G7/161 ,  G01R21/133 ,  G06F7/602 ,  G06J1/00

    摘要： In a circuit at least one of the signals (u�t! or i�t!) is transmitted to a signal input of a sigma-delta modulator operated at a first clock frequency (1/T.sub.S) the output of which is connected to at least one of two signal inputs of a multiplication/addition element (3). The arrangement is used for example in electricity counters and makes it possible to calculate sums of products by means of simple shift and algebraic adding operations while maintaining closely the precision achievable with a classic multiplication. The arrangement is especially advantageous if the multiplications are done on a semiconductor chip.

    摘要翻译： 在电路中，信号（u [t]或i [t]）中的至少一个被发送到以第一时钟频率（1 / TS）操作的Σ-Δ调制器的信号输入，其输出连接到 乘法/加法元件（3）的两个信号输入中的至少一个。 该布置用于例如电计数器，并且可以通过简单的移位和代数相加操作来计算乘积的总和，同时保持与经典乘法可实现的精度。 如果在半导体芯片上进行乘法，则该布置是特别有利的。

    Analog-to-digital measurement and calibration system for electrical energy
    2.
    发明授权
    Analog-to-digital measurement and calibration system for electrical energy 失效
    用于电能的模拟 - 数字测量和校准系统

    公开(公告)号：US5736848A

    公开(公告)日：1998-04-07

    申请号：US520480

    申请日：1995-08-29

    申请人： Jacob De Vries ,  Jan Petr ,  Raul Cermeno ,  Peter Hodel

    发明人： Jacob De Vries ,  Jan Petr ,  Raul Cermeno ,  Peter Hodel

    IPC分类号： G01R21/133 ,  G01R35/04 ,  G01R21/06

    CPC分类号： G01R35/04 ,  G01R21/133

    摘要： A system for measuring the energy output from one or more electrical energy sources first makes an analog power measurement, and converts the resultant output into digital form. The A/D converter includes a sigma-delta modulator in series with a digital filter. Then, the output from the A/D converter is inputted to a digital quantizer via a serial interface. A programmable calibration value is also inputted into the digital quantizer from a computer via a non-volatile memory, such that the operating level/calibration of the digital quantizer is controllable by the computer.

    摘要翻译： 用于测量来自一个或多个电能源的能量输出的系统首先进行模拟功率测量，并将所得到的输出转换成数字形式。 A / D转换器包括与数字滤波器串联的Σ-Δ调制器。 然后，A / D转换器的输出通过串行接口输入到数字量化器。 可编程校准值也经由非易失性存储器从计算机输入到数字量化器中，使得数字量化器的操作电平/校准可由计算机控制。