TIDM-SOLAR-DCDC

C2000™ Solar DC/DC Converter with Maximum Power Point Tracking (MPPT)

TIDM-SOLAR-DCDC

Design files

Overview

This design is a digitally-controlled, solar DC/DC converter with maximum power point tracking (MPPT), for use in central or string solar inverters. It is a companion to TIDM-SOLAR-ONEPHINV, a grid-tied, single phase, DC/AC inverter. Together, TIDM-SOLAR-DCDC and TIDM-SOLAR-ONEPHINV comprise a  solar inverter for central or string topologies. This solar DC/DC converter consists of a two-phase interleaved boost converter for MPPT and a resonant LLC converter with isolation. A C2000™ Piccolo™ TMS320F28035 microcontroller (MCU) is the digital controller for the DC/DC converter, executing high frequency control loops and maximum-power point tracking algorithms. This design achieves full-load efficiency of greater than 94 percent, which allows for more overall energy output from a solar installation and reduces detrimental heat generation in the converter.

Features
  • Implements a solar DC/DC converter with maximum power point tracking (MPPT). The DC/DC converter consists of a two-phase interleaved boost converter for maximum power point tracking and a resonant LLC converter with isolation.
  • C2000™ Piccolo™ TMS320F28035 microcontroller (MCU) serves as a high-performance controller for the DC/DC converter, executing high-frequency control loops to control the power stages and compute maximum power point algorithms.
  • Supports input panel voltages of 200 V to 300 V and an output of 400 VDC, rated up to 500 W.
  • Greater than 94 percent peak efficiency allows for more overall energy output from a solar installation and reduces detrimental heat generation in the converter.
  • Solar and digital power software libraries provide code-optimized building blocks to implement a variety of power topologies and algorithms such as MPPT and Software Phase-Locked Loop (PLL) for designing customized solar inverters.
  • Includes software, hardware design files, quick-start graphical interface and step-by-step documentation

NOTE: Software for this board is located inside the controlSUITE™ software package. Download controlSUITE. Once installed, navigate to "High-voltage Solar Maximum Power Point Tracking Development Kit" under the Development Tools -> Solar section.

Design files & products

Design files

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

TIDR756.PDF (220 K)

Detailed schematic diagram for design layout and components

TIDR758.PDF (102 K)

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

TIDR759.ZIP (341 K)

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

TIDC475.ZIP (100 K)

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

TIDR757.PDF (584 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Buck modules (integrated inductor)

PTH08080W2.25 A, 4.5-V to 18-V Input Wide Adjust Miniature Power Module

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F28035C2000™ 32-bit MCU with 60 MHz, 128 KB flash, CLA

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F28035-Q1Automotive C2000™ 32-bit MCU with 60 MHz, 128 KB flash, CLA

Data sheet document-pdfAcrobat PDF
D-type flip-flops

SN74LVC2G74Single Positive-Edge-Triggered D-Type Flip-Flop with Clear and Preset

Data sheet document-pdfAcrobat PDF open-in-new HTML
Digital isolators

ISO7240CQuad-channel, 4/0, 25-Mbps digital isolator

Data sheet document-pdfAcrobat PDF open-in-new HTML
Digital isolators

ISO7242AQuad-channel, 2/2, 1-Mbps digital isolator

Data sheet document-pdfAcrobat PDF
Digital isolators

ISO7242CQuad-channel, 2/2, 25-Mbps digital isolator

Data sheet document-pdfAcrobat PDF open-in-new HTML
High-speed op amps (GBW>=50MHz)

OPA3652.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TPS730200-mA, low-dropout voltage regulator with enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TPS795500-mA, low-dropout voltage regulator with enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TPS799200-mA, low-IQ, low-dropout voltage regulator with low-noise & enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
Low-side drivers

UCC27324Non-inverting 4-A/4-A dual-channel low side gate driver

Data sheet document-pdfAcrobat PDF open-in-new HTML
Low-side drivers

UCC27324-Q1Automotive non-inverting 4-A/4-A dual-channel low side gate driver

Data sheet document-pdfAcrobat PDF open-in-new HTML
Noninverting buffers & drivers

SN74LVC2G172-ch, 1.65-V to 5.5-V buffers with Schmitt-Trigger inputs

Data sheet document-pdfAcrobat PDF open-in-new HTML

Start development

Hardware

Development kit

TMDSHVMPPTKIT – High Voltage Isolated Solar MPPT Development Kit

CAUTION: This equipment operates at high voltages and currents which can result in hazardous electrical shock. Please make sure you understand and follow all necessary safety precautions prior to purchasing and operating.

TMDSHVMPPTKIT is a DIMM100 controlCARD based motherboard evaluation module (...)

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Technical documentation

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Type Title Date
Technical article Solar in Texas: the future looks bright Jul. 22, 2016
Technical article Lighting up TI’s solar power delivery and charging solutions Nov. 04, 2014

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