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TIDM-3PHMETER-ROGOWSKI
Implementation of a 3-Phase Rogowski Coil Based Watt Hour Meter Reference Design
TIDM-3PHMETER-ROGOWSKI
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
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.
TIDU474.PDF (560 K)
Reference design overview and verified performance test data
TIDRAY8.PDF (106 K)
Detailed schematic diagram for design layout and components
TIDRAY9.PDF (206 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRAZ0.ZIP (308 K)
Files used for 3D models or 2D drawings of IC components
TIDC676.ZIP (323 K)
Design file that contains information on physical board layer of design PCB
TIDRAZ1.ZIP (425 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
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Technical documentation
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Three Phase Rogowski Coil Based E-Meter Solution Design Guide | Sep. 09, 2014 |
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