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    • 1. 发明授权
    • Method and circuit arrangement for current measurement
    • 电流测量的方法和电路布置
    • US07242177B2
    • 2007-07-10
    • US10524561
    • 2003-08-07
    • Reinhard MaierJürgen Rupp
    • Reinhard MaierJürgen Rupp
    • G01R1/20G01R27/00
    • G01R19/32G01R15/146G01R19/252
    • A method with corresponding circuit arrangement is disclosed, whereby for evaluation of a measured signal arising as an analogue value with a potential greater than zero potential in a measuring device requiring a supply current, the measured information therefrom is transmitted as a digital signal to an analytical unit lying at earth potential after an A/D conversion. The generated digital signal thus provides the clock signal for a modulation of the supply current and thus also carries out the function of the carrier for the information content of the measured signal. Curved characteristic lines for compression/decompression of the signals are used. Suitable devices for temperature compensation may be similarly provided.
    • 公开了一种具有相应电路装置的方法,其中为了评估在需要电源电流的测量装置中作为具有大于零电势的电位的模拟值产生的测量信号,将其测得的信息作为数字信号发送到分析 A / D转换后的单位处于地电位。 所产生的数字信号因此提供用于电源电流调制的时钟信号,并且因此还对测量信号的信息内容执行载波的功能。 使用用于信号的压缩/解压缩的曲线特征线。 适用于温度补偿的装置可以类似地提供。
    • 4. 发明授权
    • Method for evaluating a measuring signal and corresponding circuit arrangement
    • 评估测量信号和相应电路装置的方法
    • US07015702B2
    • 2006-03-21
    • US10467630
    • 2002-02-06
    • Jürgen Rupp
    • Jürgen Rupp
    • G01R27/02G01R31/08
    • G01R19/0092G01R15/146G01R19/252G01R21/133
    • In order to measure the current in a shunt, the voltage drop in the resistor of said shunt is evaluated as a measurement of the current. Normally, galvanic separation of the measuring device is required for high-potential shunts. A digital measuring signal provides the clock pulse for modulation of the supply current for the measuring device after an A/D conversion. The modulated supply current is also used as a carrier for the measuring information. In the associated evaluation device, an A/D converter and a modulation unit are arranged downstream from an amplifier for voltage signal which is picked off from the shunt. The modulated measuring signal is transmitted to an evaluation device.
    • 为了测量分路中的电流,所述分流器的电阻器中的电压降被评估为电流的测量值。 通常,高电位分流器需要测量装置的电流分离。 数字测量信号提供时钟脉冲,用于在A / D转换后用于调制测量装置的电源电流。 调制的电源电流也用作测量信息的载体。 在相关联的评估装置中,A / D转换器和调制单元布置在从分流器拾取的电压信号的放大器的下游。 调制测量信号被传送到评估装置。