TIDM-3PHMETER-ROGOWSKI

Implementation of a 3-Phase Rogowski Coil Based Watt Hour Meter Reference Design

Design files

TIDM-3PHMETER-ROGOWSKI

Design files

Overview

This design, implements a highly integrated single chip electricity metering solution, with support for Rogowski Coil current sensors. Hardware and software design files are provided to enable calculation of various parameters for multi-phase energy measurement, such as RMS current & voltage, active and reactive power and energies, power factor and frequency. The added hardware and software support for Rogowski Coils make it easy to interface with Rogowski coils with minimal hardware changes when migrating from traditional current transformers. The Rogowski coil current sense library implements an efficient software integration of the Rogowski output, enabling this to be a single chip solution for 3-phase e-metering. Software package also includes a dummy application for quick and easy evaluation of the hardware and software.

Features

3 phase 0.5% energy metering solution
Low cost isolated current sensing using Rogowski Coils
Software integrator solution – minimal hardware changes to migrate from existing CT based solutions
Current sensing immune to EMI
No effect of DC components of current
No phase shift in current measurement

Industrial

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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

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Design guide — TIDM-3PHMETER-ROGOWSKI

TIDU474.PDF (560 KB)

Reference design overview and verified performance test data

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Bill of materials (BOM) — TIDM-3PHMETER-ROGOWSKI

TIDRAY9.PDF (206 KB)

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

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CAD/CAE symbol — TIDM-3PHMETER-ROGOWSKI

TIDRAZ0.ZIP (309 KB)

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

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Gerber file — TIDM-3PHMETER-ROGOWSKI

TIDC676.ZIP (324 KB)

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

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PCB layout — TIDM-3PHMETER-ROGOWSKI

TIDRAZ1.ZIP (426 KB)

PCB layer plot file used for generating PCB design layout

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Schematic — TIDM-3PHMETER-ROGOWSKI

TIDRAY8.PDF (107 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

MSP430 microcontrollers

MSP430F67791A — Polyphase metering SoC with 7 Sigma-Delta ADCs, LCD, real-time clock, 512KB Flash, 32KB RAM

Data sheet: PDF | HTML

AC/DC & DC/DC converters (integrated FET)

TPS54060 — 3.5V to 60V Input, 0.5A Step-Down Converter with Eco-Mode

Data sheet: PDF | HTML

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Software

Support software

TIDC675 — Implementation of a 3-Phase Rogowski Coil Based Watt Hour Meter Software

Supported products & hardware

Hardware development

Reference design

TIDM-3PHMETER-ROGOWSKI — Implementation of a 3-Phase Rogowski Coil Based Watt Hour Meter Reference Design

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TIDC675 — Implementation of a 3-Phase Rogowski Coil Based Watt Hour Meter Software

Latest version

Version: 01.00.00.0A

Release date: Oct 17, 2019

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Implementation of a 3-Phase Rogowski Coil Based Watt Hour Meter Software (zip) — 8578 K

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Hardware development

Reference design

TIDM-3PHMETER-ROGOWSKI — Implementation of a 3-Phase Rogowski Coil Based Watt Hour Meter Reference Design

Release Information

The design resource accessed as www.ti.com/lit/zip/tidc675 or www.ti.com/lit/xx/tidc675a/tidc675a.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDC675. Please update any bookmarks accordingly.

Technical documentation

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	Type	Title		Date
*	Design guide	Three Phase Rogowski Coil Based E-Meter Solution Design Guide		Sep 9, 2014

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