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ADE7878配置

ADE7878电能芯片配置为电表模式,公式WTHR = PMAX * f(s)*3600*10^n/V(fs)/I(fs)中的V(fs)和I(fs)等于多少呢。通过移植示例代码,读出来的电流电压值不准确

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  • 你好,请参看数据手册的Root  mean square measurement章节:"

    With the specified full-scale analog input signal of 0.5 V, the

    ADC produces an output code that is approximately +/-5,928,256. The equivalent rms value of a full-scale sinusoidal signal is 4,191,910 (0x3FF6A6)"

    WTHR是和能量相关的Threshold寄存器,与电压电流RMS值没有什么关系。所以你电压电流度数不准应该去校准电压和电流的gain和offset。

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  • 你好,请参看数据手册的Root  mean square measurement章节:"

    With the specified full-scale analog input signal of 0.5 V, the

    ADC produces an output code that is approximately +/-5,928,256. The equivalent rms value of a full-scale sinusoidal signal is 4,191,910 (0x3FF6A6)"

    WTHR是和能量相关的Threshold寄存器,与电压电流RMS值没有什么关系。所以你电压电流度数不准应该去校准电压和电流的gain和offset。

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