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TIDA-010955

Analog front end for machine learning arc detection in solar applications

TIDA-010955

Design files

Overview

This reference design features an analog front end for DC arc detection in solar applications based on artificial intelligence (AI). DC arcing induces a high-frequency noise onto the DC sting current. To detect the arcing frequency, data is acquired and feed into an embedded AI model, which is trained to identify the arc. Compared to traditional arc detection approaches this achieves higher accuracy with less computational efforts. Besides the signal-chain for arc detection this design offers features for collecting and labeling arcing data for embedded AI model training. This hardware works with TMDSCNCD28P55X, controlCARD of C2000™ F28P55xdevices, as well as other C2000 controlCARDs in 180-pin connector and is part of a AI based arc detection tool chain, including different software tools for collecting arc data, training an embedded AI model and validating the system.

Features
  • 4-channel analog front end for AI-based arc detection
  • Configurable analog front end with band-pass and notch filter
  • String voltage and arc gap voltage measurement inputs for training data acquisition
  • Auto-labeling circuits to generate labeled arcing data
  • Works with TMDSCNCD28P55X, controlCARD of C2000 F28P55x devices, as well as other C2000 controlCARDs in 180-pin connector
  • Selected embedded AI models for a quick start into AI-based arc detection
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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.

PDF | HTML
TIDUF85.PDF (1380 K)

Reference design overview and verified performance test data

TIDMD57.PDF (1343 K)

Detailed schematic diagram for design layout and components

TIDMD58.PDF (155 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDMD59.PDF (629 K)

Detailed overview of design layout for component placement

TIDMD61.ZIP (4704 K)

Files used for 3D models or 2D drawings of IC components

TIDCGQ6.ZIP (955 K)

Design file that contains information on physical board layer of design PCB

TIDMD60.PDF (2367 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

C2000 real-time microcontrollers

TMS320F28P550SJC2000™ 32-bit MCU, 1x C28x + 1x CLA, 150-MHz, 1.1-MB flash, 5x ADCs, CLB, AES and NPU

Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)

TPS5622034.2-V to 17-V input, 2-A synchronous buck converter in SOT563 with eco-mode

Data sheet: PDF | HTML
General-purpose op amps

OPA322Single, 5.5-V, 20-MHz, 65-mA output current, low noise (8.5-nV/√Hz) operational amplifier

Data sheet: PDF | HTML
General-purpose op amps

OPA4323Quad, 5.5-V, 20-MHz, zero-cross low-noise (6 nV/√Hz) RRIO operational amplifier

Data sheet: PDF | HTML
Isolated amplifiers

AMC3330±1-V input, precision voltage sensing reinforced isolated amplifier with integrated DC/DC

Data sheet: PDF | HTML
Isolated comparators

AMC23C11Fast-response, reinforced, isolated comparator with adjustable threshold and latch function

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS7A20300mA ultra-low-noise low-IQ low-dropout (LDO) linear regulator with high PSRR

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Certificate TIDA-010955 EU Declaration of Conformity (DoC) Aug. 13, 2024
Design guide Analog Front End Reference Design for Machine Learning Arc Detection in Solar Applications PDF | HTML Aug. 12, 2024

Related design resources

Hardware development

EVALUATION BOARD
TMDSCNCD28P55X TMDSCNCD28P55X controlCARD evaluation module

Software development

SOFTWARE DEVELOPMENT KIT (SDK)
C2000WARE-DIGITALPOWER-SDK DigitalPower software development kit (SDK) for C2000™ MCUs

Support & training

TI E2E™ forums with technical support from TI engineers

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