High Accuracy Three-Phase Electricity Meter with Tamper Detection


Design files


The design implements a highly accurate three-phase electric meter system using the MSP430F6779 smart meter SoC. It exceeds all of the requirements for ANSI C12.20 and IEC-62053 Class 0.2 meters. The F6779 SoC is the most integrated polyphase e-meter SoC with 512KB flash. This allows developers to create a true single-chip smart e-meter with the highest performance and accuracy. In addition, this EVM has tamper detection capabilities which assist the engineer’s development of methods to prevent theft of electricity from utilities.

  • Three-phase electricity meter which exceeds Class 0.2 accuracy requirements from ANSI and IEC
  • TI Energy Library firmware calculates all energy measurement parameters including active and reactive power and energy, RMS current and voltage, power factor, and line frequency.
  • Add-on communications modules for wireless communications standards such as ZigBee ®, Wi-Fi®, Wireless M-Bus, and IEEE-802.15.4g. Both 2.4GHz and Sub-1GHz.
  • Built-in 160-segment display
  • Powered from three-phase line voltage

Design files & products

Design files

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

TIDU201.PDF (204 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDR376.PDF (113 K)

Detailed schematic diagram for design layout and components

TIDR375.PDF (145 K)

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

TIDC256.ZIP (9180 K)

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


Includes TI products in the design and potential alternatives.

MSP430 microcontrollers

MSP430F6779Polyphase metering SoC with 7 Sigma-Delta ADCs, LCD, real-time clock, AES, 512KB Flash, 32KB RAM

Data sheet document-pdfAcrobat PDF open-in-new HTML
Other wireless technologies

CC2530-RF4CEZigbee, IEEE 802.15.4 and RF4CE wireless MCU with 256kB Flash and 8kB RAM

Data sheet document-pdfAcrobat PDF
Zigbee products

CC2530Zigbee and IEEE 802.15.4 wireless MCU with 256kB Flash and 8kB RAM

Data sheet document-pdfAcrobat PDF

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Evaluation board

EVM430-F6779 – EVM430-F6779 - 3 Phase Electronic Watt-Hour EVM

This EVM430-F6779 is a three-phase electricity meter evaluation module based on the MSP430F6779 device. The E-meter has inputs for three voltages and three currents, as well as an additional connection to setup anti-tampering. It allows a customer to test the new (...)

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Technical documentation

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Type Title Date
* Application note Implementation of a Three-Phase Electronic Watt-Hour Meter Using MSP430F677x(A) (Rev. G) Aug. 05, 2015
* Test report High Accuracy Three-Phase Electricity Meter With Tamper Detection Test Data Jan. 24, 2014

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