Isolated Shunt Current Measurement with Standalone Digital Filters Reference Design
TIDA-01639
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical Documents

Support & Training

Order Now


See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document

Description

This reference design implements a class 0.5 three phase energy measurement system with isolated shunt sensors by using isolated modulators and independent digital filters, enabling a wider choice of host microcontrollers (MCU) as integrated sync filters are no longer required. In this design, currents sensed by the isolated modulators and phase voltages sensed by the host microcontroller are synchronized; supporting the addition of advanced metrology algorithms using the Simplelink™ ARM Cortex M4 host MCU. The design is immune from magnetic tamper attacks through the use of current sensors and power supplies that do not use any transformers or other magnetic components.   This subsystem design is tested and includes hardware.

Features
  • Class 0.5 three-phase metrology with galvanically isolated(up to 600 VRMS and peak isolation voltage of 4 kVRMS)  shunt current sensors
  • Galvanically isolated shunt current sensors and  cap-drop supplies enable magnetic immunity
  • Standalone digital filters enable using host microcontrollers without digital filters, thereby increasing design portability
  • Synchronized voltage and current samples across all phases along with  ARM® Cortex® M4 host MCU supports adding advanced metrology algorithms
  • Active and reactive energy, root mean square (RMS) current and voltage, power factor, and line frequency calculations

See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide

Design Files

Download ready-to-use system files to speed your design process. Get Viewer.

Download Design Files


TI Devices (13)

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
AMC1106E05  Small Basic Isolated Delta-Sigma Modulator With ±50mV Input and Manchester-Encoded CMOS Interface  Isolation  Sample & Buy View Design Kits & Evaluation Modules
AMC1106M05  Small Basic Isolated Delta-Sigma Modulator With ±50mV Input and CMOS Interface  Isolation  Sample & Buy View Design Kits & Evaluation Modules
AMC1210  4 Channel Digital Filter for delta-sigma modulators  Isolation  Sample & Buy View Design Kits & Evaluation Modules
ISO7720  High-speed, robust EMC reinforced dual-channel digital isolator  Isolation  Sample & Buy View Design Kits & Evaluation Modules
ISO7721  High-speed, robust-EMC reinforced dual-channel digital isolator  Isolation  Sample & Buy View Design Kits & Evaluation Modules
MSP432P4111  SimpleLink Ultra-Low-Power 32-Bit Arm Cortex-M4F MCU with Precision ADC, 2MB Flash and 256KB RAM  SimpleLink MCUs  Sample & Buy View Design Kits & Evaluation Modules
TLV704  24V Input Voltage, 150mA, Ultra-Low-Iq Low-Dropout (LDO) Regulators  Power management  Sample & Buy View Design Kits & Evaluation Modules
TLV9001  1-Channel, 1MHz, RRIO, 1.8V to 5.5V Operational Amplifier for Cost-Optimized Systems  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TPD1E04U04  1-channel ESD protection diode With low dynamic resistance for HDMI 2.0 and USB 3.0  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules
TPS3850  Precision window supervisor for OV & UV monitoring with window watchdog timer & programmable delay  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS709  150-mA 30-V ultra-low-IQ wide-input low-dropout (LDO) regulator with reverse current protection  Power management  Sample & Buy View Design Kits & Evaluation Modules
TRS3232E-Q1  Automotive Catalog 3V to 5.5V Multichannel RS-232 Line Driver/Receiver with +/-15-kV ESD Protection  Interface  Sample & Buy Not Available
TVS0500  5V flat-clamp surge protection device  Circuit protection  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
AMC1106E05 Download
AMC1106M05 Download Download
AMC1210 Download Download
ISO7720 Download Download
Download
Download Download
ISO7721 Download Download
Download Download
Download Download
MSP432P4111 Download Download
TLV704 Download Download
TLV9001 Download -
Download Download
Download Download
Download
TPD1E04U04 Download
TPS3850 Download Download
TPS709 Download
Download
TRS3232E-Q1 Download Download
TVS0500 Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 1835 12 Sep 2018
Design files (6)
Title Type Size (KB) Date
ZIP 2362 12 Sep 2018
ZIP 3608 12 Sep 2018
PDF 2429 12 Sep 2018
PDF 497 12 Sep 2018
PDF 64 12 Sep 2018
PDF 577 12 Sep 2018
Related Tools & Software

Reference Designs  ( 2 )

Models (1)

Title Category Type Size (KB) Date Views
TIDA-01639 Simulation File TINA-TI Reference Design ZIP 14 KB 12 Sep 2018

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

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

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles