Low-Cost Single/Dual-Phase Isolated Electricity Measurement Reference Design

(ACTIVE) TIDM-TWOPHASEMETER-I2040

Description & Features

Technical Documents

Support & Training

Order Now


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Key Document

Description

The design implements a low-cost single- or dual-phase electricity measurement solution. The design separates a small metrology MCU from the host MCU, providing both protection from the AC mains and also isolation of the energy measurement function from corruption by other software. The small, low-cost metrology MCU achieves IEC/ANSI Class 1 accuracy and calculates active and reactive power and energy. This design is implemented using Current Transformer sensors for single and dual-phase measurement. It can also be easily modified for single-phase measurement with shunt resistor sensors.

Features
  • Low-cost single-/dual-phase electricity measurement with IEC/ANSI Class 1 accuracy
  • 4KV peak Isolation between metrology and host ensure Mains and the metrology subsystem are isolated from other subsystems
  • Small 28-pin TSSOP package of metrology MCU reduces board space and simplifies layout to minimize PCB complexity.
  • 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
  • Low power consumption of metrology MCU reduces cost of power supply

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




TI Devices (6)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ISO7220A  Dual Channel, 2/0, 1Mbps Digital Isolator  Isolation  Sample & Buy View Design Kits & Evaluation Modules
ISO7221A  Dual Channel, 1/1, 1Mbps Digital Isolator  Isolation  Sample & Buy View Design Kits & Evaluation Modules
MSP430F6638  MSP430F6638 Mixed Signal Microcontroller  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
MSP430I2041  16-bit Mixed Signal Microcontroller  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules
TPD4E004  4-Channel ESD Protection Array for High-Speed Data Interfaces  Circuit Protection  Sample & Buy View Design Kits & Evaluation Modules
TPS5401  3.5V to 42V Input, 0.5 A Step Down Converter  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 2915 20 Jul 2016 310
Design files (5)
Title Abstract Type Size (KB) Date Views
ZIP 459 03 Oct 2014 47
ZIP 257 03 Oct 2014 55
PDF 244 03 Oct 2014 69
PDF 128 03 Oct 2014 209
ZIP 243 03 Oct 2014 26
Related Tools & Software

Software (1)



Support & Training

TI E2E Community

As a member of  myTI you can join the TI E2E™ Community  where you can ask questions, share ideas and collaborate with fellow engineers and TI experts

Content is provided "AS IS" by the respective TI and Community contributors and does not constitute TI specifications. See  Terms of use.

Engage in the Community

Blogs

Wikis

Visit the TI Wiki