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Summary

In this section, a summary of the entire “How to design high-accuracy CT-based split-phase electricity meters using standalone metrology ADCs” training module would be covered.  Links will be provided for the reference designs that were discussed during this training series.

Current sensor and metrology architecture options

This section compares two types of current sensors used in electricity meters: current transformers and shunts.  In addition, it discusses three different architectures for sensing the voltage and current samples used to calculate the metrology parameters.  These architectures include a SoC-based architecture, AFE-based architecture, and ADC-based architecture.

Introduction to TIDA-010036 reference design

This section provide an overview of the TIDA-010036 reference design, which uses the ADS131M04 delta sigma standalone ADC for sensing the voltage and current necessary to calculate metrology parameters.  The TIDA-010036 design targets Class 0.5 single-phase two-wire meters with shunt current sensors and has a compact, magnetically immune cap-drop power supply to power the design from AC mains.

TIDA-010036 hardware design

This section provides an overview of the hardware used in the TIDA-010036 design, which includes the circuits used to translate the Mains voltage and current to the voltage waveform sensed by the ADS131M04.  In addition, it covers the TPS7A78-based cap-drop power supply used in this design.

Designing software for 1-phase electricity meters that use standalone ADCs

This section covers the initialization code and algorithms that can be used to calculate metrology parameters in a single-phase system using the sensed voltage and current samples.

ADS131M04 current detection mode for detecting neutral removal tampering

This section discusses current detection mode, which is a special low-power mode of the ADS131M04 standalone ADC, that can detect the presence of current when someone has tampered with a meter by removing its neutral connection.

Calibration and metrology accuracy results

This section discusses the procedure used to calibrate the TIDA-010037 design and the results obtained with this design.

Summary

In this section, a summary of the entire “How to design 1-phase shunt electricity meters using standalone metrology ADCs” training module would be covered.  Links will be provided for the reference designs that were discussed during this training series.

TPS7A78 Calculator: How to Power an MCU from 240VAC

Date:
February 19, 2020

Duration:
03:00
Example #1: The is the first in a series of videos using the TPS7A78 component calculator to optimize TPS7A78 Cap-Drop Power Supply.

Software Frequency Response Analyzer Overview

Date:
November 4, 2014

Duration:
01:52
Learn more about how TI can help you more quickly tune your digital power supply design using the Software Frequency Response Analyzer, part of powerSUITE Digit

Secure Connection to the IoT Cloud with Crypto Connected LaunchPad Evaluation Kit

Date:
September 2, 2015

Duration:
02:55
Learn how to quickly evaluate TM4C129x MCU IoT solutions with the Crypto Connected LaunchPad kit.

Looking for an LDO?

Date:
November 8, 2014

Duration:
00:32
Texas Instruments (TI) has the broadest portfolio of LDO and linear regulators for both high-performance and cost-effective solutions. Power designers can find

Isolated Shunt-Based Current & Voltage Sensing Reference Design for Protection Relays

Date:
February 26, 2015

Duration:
03:03
This isolated shunt based current measurement unit enables high accuracy current measurement without the use of Current Transformers (CT). The isolation is achi

IEC 61850 Demonstration of Substation Bay Controller on Beaglebone Cape Reference Design

Date:
February 26, 2015

Duration:
02:32
A low cost, simplified implementation of an IEC 61850 Substation Bay Controller is demonstrated by running the Triangle MicroWorks IEC 61850 stack efficiently o

TIDA-00226: Small form factor Serial-to-Ethernet Converter Reference Design

Date:
November 17, 2015

Duration:
03:35
This design demonstrates bi-directional switching and transmission between serial ports and Ethernet ports, which can enable legacy equipment that has only seri

TIDA-00490: Digitally Isolated 2-Channel, Wide AC/DC Binary Input Module Reference Design

Date:
November 17, 2015

Duration:
04:13
This reference design enables translation of wide range AC and DC voltage inputs up to 276V into binary logic level voltages that a typical electronic circuit c

TI C2000 Digital Power Solutions Overview

Date:
March 6, 2015

Duration:
03:23
This video provides an overview of the Digital Power Solutions supported by TI C2000 Microcontrollers.

TMS320C66x: Industry’s first 10-GHz fixed & floating point

Date:
November 1, 2014

Duration:
03:46
TI raised the power and performance bar by offering a multicore device with 10 GHz of cumulative performance

Meet the new Internet: Embedded Wi-Fi for the IoT

Date:
November 8, 2014

Duration:
02:15
The next generation of embedded Wi-Fi is here with TI’s SimpleLink™ Wi-Fi Internet-on-a-chip™ solutions. The CC3100 and CC3200 platforms can be battery-powered

powerSUITE Digital Power Software Tools - Part 2: Software Frequency Response Analyzer

Date:
March 11, 2015

Duration:
01:51
Learn about how TI can help you more quickly measure the frequency response of your digital power supply design using the Software Frequency Response Analyzer
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