Software
Firmware
TIDA-010243-FIRMWARE — Firmware source code for TIDA-010243
Firmware source code for TIDA-010243 for Rev.2 PCB
TIDA-010243
Three-phase current transformer e-meter reference design with standalone ADC
TIDA-010243
Overview
This reference design implements Class 0.1 three-phase energy measurement using a high-performance, multichannel analog-to-digital converter (ADC), which samples current transformers (CT) at 8 kHz to measure the current and voltage of each leg of the AC mains. This reference design achieves high accuracy across a wide input current range from 0.05 A to 100 A and supports high sampling frequencies necessary for power quality features such as individual harmonic analysis. An ADC sample rate of 32 kSPS can be achieved when using a TI Arm® Cortex®-M0+ host microcontroller for metrology. The necessary software functionality is implemented by porting the TI ADC energy metrology library to MSPM0G3507 and can be compiled with Code Composer Studio™.
Features
- ANSI C12.20 Class 0.1 active energy accuracy across 2000:1 input range
- Active and reactive energy and power, RMS current and voltage including power factor with line-frequency calculations
- Isolated RS-232 and RS-485 with 5 kV RMS isolation
- 50 mA to 100 A input range
- Complete tested reference design with hardware files and design guide
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.
TIDUF25.PDF (1559 K)
Reference design overview and verified performance test data
TIDMBP3.PDF (619 K)
Detailed schematic diagram for design layout and components
TIDMBP4.PDF (185 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDMBP5.PDF (446 K)
Detailed overview of design layout for component placement
TIDMBP7.ZIP (2554 K)
Files used for 3D models or 2D drawings of IC components
TIDCGG0.ZIP (986 K)
Design file that contains information on physical board layer of design PCB
TIDMBP6.PDF (1979 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
Arm Cortex-M0+ MCUs
MSPM0G3507 — 80MHz Arm® Cortex®-M0+ MCU with 128KB flash 32KB SRAM 2x4Msps ADC, DAC, 3xCOMP, 2xOPA, CAN-FD, MATHA
Data sheet: PDF | HTMLMSP430 microcontrollers
MSP430FR4131 — 16 MHz MCU with 4KB FRAM, 0.5KB SRAM, 10-bit ADC, LCD, UART/SPI/I2C, IR logic, timer
Data sheet: PDF | HTMLStart development
Technical documentation
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| Type | Title | Date | ||
|---|---|---|---|---|
| Design guide | Cost-Effective, 3-Phase CT Electricity Meter Ref. Design Using Standalone ADC | PDF | HTML | Jun. 30, 2023 |
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