TIDUF72
August 2024
1
Description
Resources
Features
Applications
6
1
System Description
1.1
Key System Specifications
1.2
End Equipment
1.3
Electricity Meter
1.4
Power Quality Meter, Power Quality Analyzer
2
System Overview
2.1
Block Diagram
2.2
Design Considerations
2.2.1
Magnetic Tamper Detection With TMAG5273 Linear 3D Hall-Effect Sensor
2.2.2
Analog Inputs of Standalone ADCs
2.2.3
Voltage Measurement Analog Front End
2.2.4
Analog Front End for Current Measurement
2.3
Highlighted Products
2.3.1
AMC131M03
2.3.2
ADS131M02
2.3.3
MSPM0G1106
2.3.4
TMAG5273
2.3.5
ISO6731
2.3.6
TRS3232E
2.3.7
TPS709
3
Hardware, Software, Testing Requirements, and Test Results
3.1
Hardware Requirements
3.1.1
Software Requirements
3.1.2
UART for PC GUI Communication
3.1.3
Direct Memory Access (DMA)
3.1.4
ADC Setup
3.1.5
Foreground Process
3.1.6
Formulas
3.1.6.1
Standard Metrology Parameters
3.1.6.2
Power Quality Formulas
3.1.7
Background Process
3.1.8
Software Function per_sample_dsp()
3.1.9
Voltage and Current Signals
3.1.10
Pure Waveform Samples
3.1.11
Frequency Measurement and Cycle Tracking
3.1.12
LED Pulse Generation
3.1.13
Phase Compensation
3.2
Test Setup
3.2.1
Power Supply Options and Jumper Setting
3.2.2
Electricity Meter Metrology Accuracy Testing
3.2.3
Viewing Metrology Readings and Calibration
3.2.3.1
Calibrating and Viewing Results From PC
3.2.4
Calibration and FLASH Settings for MSPM0+ MCU
3.2.5
Gain Calibration
3.2.6
Voltage and Current Gain Calibration
3.2.7
Active Power Gain Calibration
3.2.8
Offset Calibration
3.2.9
Phase Calibration
3.3
Test Results
3.3.1
Energy Metrology Accuracy Results
4
Design and Documentation Support
4.1
Design Files
4.1.1
Schematics
4.1.2
BOM
4.1.3
PCB Layout Recommendations
4.1.4
Layout Prints
4.1.5
Altium Project
4.1.6
Gerber Files
4.1.7
Assembly Drawings
4.2
Tools and Software
4.3
Documentation Support
4.4
Support Resources
4.5
Trademarks
5
About the Authors
Design Guide
Single-Phase and Split-Phase Shunt Energy Metrology Reference Design