C2000Ware Digital Power SDK  5.03.00.00
PMP41037 - 1kW, 800V to 12V Serial Half-Bridge Bidirectional DCX With GaN

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Target Applications

  • Battery Test System (BTS)
  • Energy Storage System (ESS)
  • Portable Power Station (PPS)

Features & Specification

  • Rated Power: 1kW
  • Input: 760-840V DC, Output: 12V DC
  • Natural bidirectional power flow
  • Uses 650V GaN to handle 800V DC
  • Active voltage balancing control
  • Higher than 98.0% efficiency
  • Small form factor, 50mm × 120mm × 35mm
  • Flexible input and PWM strategy
PMP41037 Design Specification
Vin (Min) (V) 760
Vin (Max) (V) 840
Vout (Nom) (V) 12
Iout (Max) (A) 84
Output Power (W) 1008
Isolated/Non-Isolated Isolated
Input Type DC
Topology Half Bridge - Resonant

Description

This reference design is a 1kW bidirectional DC transformer (DCX), converting 800V DC bus into 12V with isolation. The design is controlled by a C2000™ TMS320F280039C real-time MCU, and constantly operated at the resonant frequency of the resonant tank.

The primary side uses LMG3622 GaN half bridges in serial to handle up to 900V DC voltage. The serial half bridges (SHB) can be modified into full bridge, and change the high-voltage side from 800V to 400V. The serial half bridge enables various PWM strategies and control flexibility.

PMP41037 EVM Board
C2000 MCU interface to PMP41037 Power Stage Diagram

Relevant Links

Useful links regarding the reference design are provided below:

Note
To import and evaulate CCS project using the button above, please access the current page via Resource Explorer from Code Composer Studio (CCS), or CCS Cloud. (go to CCS->View->Resource Explorer)

Steps to Run the Example

  • It's strongly recommended to first read through the User Setup & Test Report for any specific setup instructions and hazard warnings before proceeding.
  • To import CCS projects, either import via the button above or mannually select the file directory where this solutions resides.
  • Build the project within the CCS project menu, then launch a CCS debug session and run the executable.

Release Notes

Shown below lists all the software revision history for this reference design:

Software Version SDK Release Changelog
v1.00.00 5.03.00.00 First release, on F28003x devices in C2000Ware Digital Power SDK

Hardware design files

For EVM design files such as schematics, BOM, PCB layouts & assembly files, please visit TI design webpage from the link above.

Help and Support

For additional help and support, please visit TI E2E™ design support forums