Shunt-Based AC/DC Current and Voltage Sensing for Smart Grid Applications with Reinforced Isolation

(ACTIVE) TIDA-00080

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Key Document

Description

This isolated shunt based current measurement unit enables high accuracy current measurement without the use of Current Transformers (CT). The isolation is achieved through the use of AMC1304 that incorporates both high voltage isolation as well as the Delta-Sigma Modulator. This solution eliminates the need for the CT which customers value due to the decrease in board size, reduced product weight, mitigation of cross talk and EMI in the system, and potentially increases product life through lower mechanical issues by replacing the CT with a shunt.

Features
  • High accuracy current / voltage measurement capability
  • 0.25% from 0.5A to 10A
  • 1% from 10A to 200A
  • Eliminate the CT for current sensing
  • Mitigates cross talk and EMI in system
  • Extend product field life (reduce mechanical issues) and shrinks board size

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Bill of Materials (BOM)

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TI Devices (20)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
AMC1304M05  Reinforced Isolated Modulator With LDO Regulator, ±50mV Input, and CMOS Interface  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
AMC1304M25  Reinforced Isolated Modulator With LDO Regulator, ±250mV Input, and CMOS Interface  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
AMC1305M05  Reinforced Isolated Modulator With ±50mV Input and CMOS Interface  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
AMC1305M25  Reinforced Isolated Modulator With ±250mV Input and CMOS Interface  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
CDCE906  Programmable 3-PLL Clock Synthesizer / Multiplier / Divider  Clock generators  Sample & Buy View Design Kits & Evaluation Modules
DAC8564  16-Bit, Quad Channel, Ultra-Low Glitch, Voltage Output DAC with 2.5V, 2ppm/°C Internal Reference  Digital-to-analog converters (DACs)  Sample & Buy View Design Kits & Evaluation Modules
LP38798  800-mA Ultra-Low-Noise, High-PSRR LDO  Power management  Sample & Buy View Design Kits & Evaluation Modules
OPA211  1.1nV/rtHz Noise, Low-Power, Precision Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
REF3012  1.25V 50ppm/Degrees C, 50uA in SOT23-3 Series (Bandgap) Voltage Reference  Voltage references  Sample & Buy Not Available
SN6501  Low-Noise 350 mA, 410 kHz Transformer Driver for Isolated Power Supplies  Isolation  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
TMS320F28374S  Single-Core Delfino Microcontroller  C2000 real-time control MCUs  Not Available View Design Kits & Evaluation Modules
TMS320F28375S  Single-Core Delfino Microcontroller  C2000 real-time control MCUs  Not Available View Design Kits & Evaluation Modules
TMS320F28376S  Single-Core Delfino Microcontroller  C2000 real-time control MCUs  Not Available View Design Kits & Evaluation Modules
TMS320F28377D  Dual-Core Delfino Microcontroller  C2000 real-time control MCUs  Sample & Buy View Design Kits & Evaluation Modules
TMS320F28377S  Single-Core Delfino Microcontroller  C2000 real-time control MCUs  Sample & Buy View Design Kits & Evaluation Modules
TMS320F28379D  Dual-Core Delfino Microcontroller  C2000 real-time control MCUs  Sample & Buy View Design Kits & Evaluation Modules
TMS320F28379S  Single-Core Delfino Microcontrollers  C2000 real-time control MCUs  Sample & Buy View Design Kits & Evaluation Modules
TPS55340  Integrated, 5-A 40-V Wide Input Range Boost/SEPIC/Flyback DC-DC Regulator  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules
TPS7A30  Vin -3V to -36V, -200mA, Ultra-Low-Noise, High-PSRR, Low-Dropout (LDO) Linear Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
AMC1304M05 Download Download
AMC1304M25 Download Download
AMC1305M05 Download Download
AMC1305M25 Download Download
CDCE906 Download Download
DAC8564 Download Download
LP38798 Download
OPA211 Download Download
Download Download
Download -
REF3012 Download Download
SN6501 Download Download
TLV704 Download Download
TMS320F28374S Download Download
Download Download
Download Download
TMS320F28375S Download
Download Download
Download Download
Download Download
TMS320F28376S Download Download
Download Download
Download Download
TMS320F28377D Download Download
Download Download
TMS320F28377S Download Download
Download Download
Download Download
TMS320F28379D Download Download
Download Download
TMS320F28379S Download
Download
Download
TPS55340 Download -
Download Download
TPS7A30 Download Download
Download

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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 20290 19 Mar 2015 100
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 6526 23 Mar 2015 33
ZIP 3074 23 Mar 2015 18
ZIP 559 23 Mar 2015 16
ZIP 269 23 Mar 2015 28
ZIP 1338 23 Mar 2015 73
ZIP 6498 23 Mar 2015 23
Related Tools & Software

Software (1)



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