Digital ESP matrix and Spot metering options.
数码ESP矩阵和点测光选项。
The direct object of power metering is electronic transformer. From IEC standards, electronic transformer has two kinds of output: digital signals and analog signals.
电力计量直接的对象是电子互感器，IEC标准统一规定了电子互感器的两种输出方式：数字瞬时值序列和模拟电压信号。
In the power energy metering chip, there are analog to digital converters to process the voltage signals of the current censor and the voltage sensor.
在电能计量芯片中，需要模数转换器对电流和电压传感器的电压信号进行处理。
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