TIDUF25 june 2023 ADS131M08 , MSPM0G1507
This reference design implements Class 0.1 three-phase energy measurement using a high-performance, multichannel analog-to-digital converter (ADC), which samples current transformers (CT) at 8 kHz to measure the current and voltage of each leg of the AC mains. The reference design achieves high accuracy across a wide input current range (0.01 A – 100 A) and supports high sampling frequencies necessary for power quality features such as individual harmonic analysis. An ADC sample rate of 32 kSPS can be achieved when using a TI Arm® Cortex®-M0+ host microcontroller for metrology. The necessary software functionality is implemented by porting the ADC Energy Metrology library to MSPM0G3507 and can be compiled with Code Composer Studio™.