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 8kHz to measure the current and voltage of each leg of the AC mains. This reference design achieves high accuracy across a wide-input current range from 0.01A to 100A and supports high sampling frequencies necessary for power quality features such as individual harmonic analysis. An ADC sample rate of 32kSPS can be achieved when using a TI Arm® Cortex®-M0+ host microcontroller for metrology. The necessary software functionality is implemented in MSPM0-SDK and can be compiled with Code Composer Studio™.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
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