Bidirectional 400V-12V DC/DC Converter Reference Design

(ACTIVE) TIDM-BIDIR-400-12

Description & Features

Technical Documents

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Key Document

Description

The Bidirectional 400V-12V DC/DC Converter Reference Design is a microcontroller-based implementation of an isolated bi-directional DC-DC converter.  A phase shifted full-bridge (PSFB) with synchronous rectification controls power flow from a 400V bus/battery to the 12V battery in step-down mode, while a push-pull stage controls the reverse power flow from the low voltage battery to the high voltage bus/battery in boost mode.  In this implementation closed loop control for both directions of power flow is implemented using Texas Instruments 32-bit microcontroller TMS320F28035, which is placed on the LV side. This digitally-controller system can implement advanced control strategies to optimally control the power stage under different conditions and also provide system level intelligence to make safe and seamless transitions between operation modes and PWM switching patterns.

Features
  • Digitally-controlled isolated bidirectional DC/DC converter based on the TMS320F28035 microcontroller
  • 300W rated output operation in either direction
  • High voltage DC input: 200-400V
  • Low voltage DC output: 9-13.5.V (nominal 12V)
  • Seamless on-the-fly transitions between buck and boost modes
  • Complete software package (please see link below for software download instructions)

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Schematic/Block Diagram

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Design Guide

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Design Files

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Bill of Materials (BOM)

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TI Devices (10)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
DCH010505S  Miniature, 1W, 3kVDC Isolated DC/DC Converters  Offline & isolated DC/DC controllers & converters  Not Available View Design Kits & Evaluation Modules
ISO1050  Isolated 5 V CAN Transceiver  Isolation  Sample & Buy View Design Kits & Evaluation Modules
ISO7240C  2.5 kVrms, 25 Mbps, 4-Channel 4/0 Digital Isolator   Isolation  Sample & Buy View Design Kits & Evaluation Modules
ISO7242C  Quad Channel, 2/2, 25Mbps, Digital Isolator   Isolation  Sample & Buy View Design Kits & Evaluation Modules
OPA345  Low Power, Single-Supply, Rail-To-Rail Operational Amplifiers MicroAmplifier™ Series  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
PTH08080W  2.25 A, 4.5-V to 18-V Input Wide Adjust Miniature Power Module  Step-down (buck)  Not Available View Design Kits & Evaluation Modules
SN74LVC2G74  Single Positive-Edge-Triggered D-Type Flip-Flop with Clear and Preset  Flip-flop/latch/register  Sample & Buy View Design Kits & Evaluation Modules
TMS320F28035  Piccolo™ 32-bit MCU with 60 MHz, 128 KB Flash, CLA  C2000 real-time control MCUs  Sample & Buy View Design Kits & Evaluation Modules
TPS730  200mA Low-Noise High-PSRR RF Low-Dropout (LDO) Linear Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
UCC27524  Dual, 5A, High-Speed Low-Side Power MOSFET Driver  Gate Drivers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
DCH010505S Download -
ISO1050 Download Download
Download Download
ISO7240C Download Download
ISO7242C Download Download
OPA345 Download Download
Download Download
PTH08080W Download -
Download -
SN74LVC2G74 Download Download
Download Download
Download -
TMS320F28035 Download Download
Download Download
Download Download
TPS730 Download Download
Download
UCC27524 Download Download
Download Download
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 12520 01 Sep 2015 623
White papers (2)
Title Abstract Type Size (KB) Date Views
PDF 1217 27 Jul 2018 0
PDF 586 23 Sep 2016 3,553
Design files (4)
Title Abstract Type Size (KB) Date Views
ZIP 1829 30 Sep 2015 152
PDF 14420 30 Sep 2015 59
PDF 111 30 Sep 2015 96
PDF 293 30 Sep 2015 410
Related Tools & Software

Software (1)

Name Part Number Software Type
controlSUITE™ Software Suite: Software and Development Tools for C2000™ Microcontrollers  CONTROLSUITE  Software Libraries 


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