Multiphase electrical energy meter has microcontroller with input piece that contains separate input channels for current input signals with high resolution analog digital converter

摘要

The multiphase electrical energy meter has a microcontroller with an input piece. The input piece contains separate input channels for current input signals with high resolution analog digital converter, and a common input channel for all voltage input signals with a multiplexer, an analog-digital converter and demultiplexer in which the separate input channels and the common input channel provide the digital current and voltage sampling values for processing by the microcontroller.