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TIDA-010960

One-phase shunt power meter reference design with isolated ADC

TIDA-010960

Design files

Overview

This reference design implements a single-phase energy meter using standalone isolated multichannel analog to-digital converters (ADC) to sample a shunt current sensor. The reference design achieves 0.5% accuracy across the input range (50mA–15A) with a 4kHz sampling rate and uses a TI Arm® Cortex®-M0+ host microcontroller (MCU) for calculating the metrology parameters. The necessary software functionality is implemented in MSPM0-SDK and can be compiled with TI's Code Composer Studio™.

Features
  • Single-phase 0.5% accuracy across the input range (50mA–15A) with 4kHz sampling rate
  • Calculated parameters include active and reactive energy and power, RMS line current, RMS neutral current, RMS voltage, power factor, and line frequency
  • Energy metrology software with pulsed outputs to a reference test system including results displaying on a Microsoft® Windows® PC GUI
  • Flexibility in combining Metrology MCU and ADC for various performance points
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

PDF | HTML
TIDUFB8.PDF (1281 K)

Reference design overview and verified performance test data

TIDMDO2.PDF (447 K)

Detailed schematic diagram for design layout and components

TIDMDO3.PDF (157 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDMDO4.PDF (254 K)

Detailed overview of design layout for component placement

TIDMDO6.ZIP (1677 K)

Files used for 3D models or 2D drawings of IC components

TIDCGU3.ZIP (673 K)

Design file that contains information on physical board layer of design PCB

TIDMDO5.PDF (1221 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Arm Cortex-M0+ MCUs

MSPM0G110680MHz Arm® Cortex®-M0+ MCU with 64KB flash 32KB SRAM 2x12-bit 4Msps ADC, op-amp

Data sheet: PDF | HTML
Isolated ADCs

AMC130M02Two-channel, simultaneously-sampling, 16-bit, isolated delta-sigma ADC

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TLV7611A 16V high-PSRR linear voltage regulator

Data sheet: PDF | HTML
Oscillators

LMK6CLow-jitter, high-performance, bulk-acoustic-wave (BAW) fixed-frequency LVCMOS oscillator

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Design guide One-Phase Shunt Power Meter Reference Design With Isolated ADC PDF | HTML Dec. 20, 2024

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