Device for measurement of electrical energy comprising a multiplexer
    1.
    发明授权
    Device for measurement of electrical energy comprising a multiplexer 失效
    包括多路复用器的电能测量装置

    公开(公告)号:US5545981A

    公开(公告)日:1996-08-13

    申请号:US444500

    申请日:1995-05-19

    IPC分类号: G01R21/06 G01R21/133

    CPC分类号: G01R21/1331

    摘要: A device for measurement of electrical energy having current and voltage sensors 1, 2, a multiplexing circuit 8 and an analogue to digital converter 11. A microprocessor 9 controls the multiplexing circuit in order to supply the current and voltage signals alternately to the converter 11, the microprocessor 9 calculating the electrical energy at a moment in time using two values of the voltage situated around a current sample and using three samples of the current. By these means the time delay between samples of the voltage and current can be corrected.

    摘要翻译: 用于测量具有电流和电压传感器1,2,多路复用电路8和模数转换器11的电能的装置。微处理器9控制多路复用电路,以将电流和电压信号交替地提供给转换器11, 微处理器9利用位于当前样本周围的电压的两个值并使用三个电流样本来计算时刻的电能。 通过这些方式,可以校正电压和电流的采样之间的时间延迟。

    Signal generator and signal converter using same
    2.
    发明授权
    Signal generator and signal converter using same 失效
    信号发生器和信号转换器使用相同

    公开(公告)号:US4236090A

    公开(公告)日:1980-11-25

    申请号:US931650

    申请日:1978-08-08

    IPC分类号: H03K4/02 H03M1/00 H03K3/35

    CPC分类号: H03K4/02

    摘要: The signal generator comprises a charge transfer device providing an output signal having any desired shape so that it is particularly useful in an A/D or D/A converter. In this device charges are transferred under electrodes of which some are split in order to obtain charge portions which are then removed or transferred to the output of the device where they are added to or subtracted from previous charge portions to finally obtain a desired output signal.

    摘要翻译: 信号发生器包括电荷转移装置,其提供具有任何期望形状的输出信号,使得其在A / D或D / A转换器中特别有用。 在该装置中,电荷被转移到其中一些被分割的电极上,以获得电荷部分,然后将电荷部分去除或转移到装置的输出端,在那里它们被添加到或从先前电荷部分中减去以最终获得期望的输出信号。