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Home » NEWEST Products » New by Manufacturer » Texas Instruments » Texas Instruments Solar Micro-Inverter Solution
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TI Winning Solution

Texas Instruments Solar Micro-Inverter Solution

a TI Winning Solution


Texas Instruments Solar Micro-Inverter Solution

Check out a solar micro-inverter solution from Texas Instruments that maximizes power output, provides real time control and performance data, and delivers a safer, more reliable next generation system. This TI Winning Solution is composed of:

TMS320F2808 - 32-Bit Digital Signal Controller with Flash
AFE031 - Powerline Communications Analog Front End
SM72295 - Renewable Energy Grade Photovoltaic Full Bridge Driver

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Key Solution Features
  • Highly efficient, highly integrated full bridge driver for photovoltaics
    • Integrated MOSFET drivers and current sense amplifiers
  • 32-bit controller plus dedicated power line communication AFE
    • Supports multiple communication protocols such as PRIME and G3

An Intelligent Solar-Micro-Inverter Solution
An Intelligent Solar Micro-Inverter Solution


Texas Instruments TMS320F2808 32-Bit Digital Signal Controller

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Additional Resources

TI TMS320F2808 32-Bit Digital Signal Controller (DSC) with Flash is part of the C2000 microcontroller family that enables uncompromising performance for a variety of real-time control applications such as motor control, digital power supplies, solar and renewable energy, LED lighting, power line communications, radar and more. TI TMS320F808 DSC features a 32-bit architecture, DSP processing, and advanced control peripherals. At the core, C2000 MCUs are based around the TMS320C28x 32-bit DSP core, featuring single-cycle 32×32-bit hardware multiplies and single-cycle atomic instruction execution. Unique, feature-filled peripherals complement the core performance with industry-leading PWM generation, unparalleled ADC conversion, enhanced capture units, and more.

Features

  • 32-bit C28x DSP architecture
  • Modified Harvard architecture including six separate data/address buses for data and program memory
  • Eight-stage pipeline with single-cycle operation across pipeline
  • Native DSP math processing with single-cycle 32 × 32-bit multiply accumulate (MAC) operations and dual 16 × 16 MACs
  • 96 interrupt vectors with low-latency service routines down to nine cycles
  • Floating-point unit options across portfolio and revolutionary IQMath™ floating-point software for fixed-point devices
  • C28x CLA co-processor for dual-core architectures, doubled performance, and modular control systems
  • VCU Accelerator for unparalleled communications processing
  • Best-in-class compiler efficiency
  • Software compatibility across the portfolio

C28x Core

C28x Core
Texas Instruments TMS320F2808 32-Bit Digital Signal Controller

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Additional Resources

TI AFE031 Powerline Communications Analog Front End (AFE) is a low-cost, integrated, powerline communications device that is capable of capacitive- or transformer-coupled connections to the powerline while under the control of a DSP or microcontroller. TI AFE031 is ideal for driving low-impedance lines that require up to 1.5A into reactive loads. The integrated receiver is able to detect signals down to 20µVRMS and is capable of a wide range of gain options to adapt to varying input-signal conditions. This monolithic integrated circuit provides high reliability in demanding powerline communications applications.

Features
  • Integrated Powerline Driver with Thermal and Overcurrent Protection
  • Conforms to EN50065-1
  • PRIME Certified
  • Large Output Swing: 12 VPP at 1.5A (15V Supply)
  • Low Power Consumption:
    • 15mW (Receive Mode)
  • Programmable Tx and Rx Filters
  • Supports EN50065 CENELEC Bands A, B, C, D
  • Supports FSK, S-FSK, and OFDM
  • Supports PRIME, G3, IEC 61334
  • Receive Sensitivity: 20 µVRMS, Typical
  • Programmable Tx and Rx Gain Control
  • Four-Wire Serial Peripheral Interface
  • Two Integrated Zero Crossing Detectors
  • Two-Wire Transceiver Buffer
  • 48-Pin QFN PowerPAD™ Package
  • Extended Junction Temperature Range:
    • -40°C to +125°C
Applications
  • eMetering
  • Lighting
  • Solar
  • Pilot Wire


Functional Diagram
Functional Diagram
Texas Instruments SM72295 Photovoltaic Full Bridge Driver

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Additional Resources

National Products from TI SM72295 Photovoltaic Full Bridge Driver SM72295 is designed to drive 4 discrete N type MOSFETs in a full bridge configuration. These TI drivers provide 3A of peak current for fast efficient switching and integrated high speed bootstrap diodes. Current sensing is provided by 2 transconductance amplifiers with externally programmable gain and filtering to remove ripple current to provide average current information to the control circuit. The current sense amplifiers have buffered outputs available to provide a low impedance interface to an A/D converter if needed. An externally programmable input over voltage comparator is also included to shutdown all outputs. Under voltage lockout with a PGOOD indicator prevents the drivers from operating if VCC is too low.

Features
  • Renewable Energy Grade
  • Dual Half Bridge MOSFET Drivers
  • Integrated 100V bootstrap diodes
  • Independent High and Low driver logic inputs
  • Bootstrap supply voltage range up to 115V DC
  • Two current sense amplifiers with externally programmable gain and buffered outputs
  • Programmable over voltage protection
  • Supply rail under-voltage lockouts with power good indicator

Functional Diagram
Functional Diagram
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