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207 Results

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-010037 reference design

: This section provides an overview of the TIDA-010037 reference design, which uses the ADS131M04 delta sigma standalone ADC for sensing the voltage and current necessary to calculate metrology parameters.  The TIDA-010037 design targets Class 0.1 split-phase current transformer meters.

TIDA-010037 hardware design

This section provides an overview of the hardware used in the TIDA-010037 design, which includes information on the eFuse circuit used to create a current limited rail for connection to an external communication module.  In addition, this section discusses the circuits used to translate the Mains voltage and current to the voltage waveform sensed by the ADS131M04.

Designing software for split-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 split-phase system using the sensed voltage and current samples

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 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.

Introduction: Universal data concentrator supports Ethernet, 6LoWPAN RF mesh and more

We will discuss the training summary, the target end-equipment, the design motivation and system overview.

System deep-dive: Universal data concentrator supports Ethernet, 6LoWPAN RF mesh and more

This session will review the system, hardware and software details of the universal data concentrator reference design, TIDA-010032.

Experimental results and summary: Universal data concentrator supports Ethernet, 6LoWPAN RF mesh and more

In this session, we will review an experiment result in a dense network and conclude our discussion with a summary.

Introduction to grid protection equipment and data acquisition

This video introduces the electrical grid and the different types of faults. Tune in as we cover a variety of grid protection equipment and their requirements, including signal processing for data acquisition.

Decoding PRU-ICSS (hardware and software) for data acquisition

This video dives deeper into the details of the Programmable Real-Time Unit and Industrial Communications Subsystem (PRU-ICSS). The programmable nature of the PRU-ICSS, along with its access to pins, events and all system-on-chip (SoC) resources, provides flexibility in implementing fast, real-time responses, custom peripheral interfaces and the ability to offload tasks from the other processor cores of the SoC. The video also includes a comparison of PRU between different processors.

Flexible interface (PRU-ICSS) for data acquisition using multiple ADCs

This video showcases the PRU-ICSS interfaced to six 8-channel SAR ADCs (ADS8688), capturing data from all of the 48 channels at 32ksps/channel. Architecture of PRU implementation is demonstrated, achieving simultaneous sampling across multiple ADCs and coherent sampling to obtain high AC performance and minimal spectral leakage necessary for the data acquistion.
207 Results
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