C2000Ware Digital Power SDK  5.03.00.00
TIDA-010933 - 1.6kW GaN-based Solar Microinverter

Table of Contents

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Target Applications

  • Micro inverter
  • Energy storage power conversion system (PCS)

Features & Specification

  • High power density, up to 1 kW/L
  • High-switching frequency to enable small passive EMI filter components
  • Any four channels can either operate as PV input or 48V battery storage
  • Digital Control with a single C2000 MCU (DC/AC, DC/DC, MPPT)
  • Good common mode isolation with Isolated DC/DC topology
  • Low overall system solution cost
TIDA-010933 Design Specification
Output options 1 2 3 4
Vin (Min) (V) 30 30 110

45

Vin (Max) (V) 60 60 240

55

Vout (Nom) (V) 230 48 48

230

Iout (Max) (A) 7 8.3 8.3

7

Output Power (W) 1610 398.4 398.4

1610

Isolated/Non-Isolated Isolated Non-Isolated Isolated Isolated
Input Type DC DC AC Dc

Description

This reference design implements a four-channel 1.6kW single-phase bidirectional micro inverter based on GaN.

The reference design supports four identical channels with up to 60 V and ±10 A on the DC side. These channels can be connected to photovoltaic (PV) panels or to 48-V Battery Energy Storage Systems (BESS).

On the High-Voltage (HV) side, the reference design is connected to a single-phase AC grid. The reference design has Low-Voltage (LV) and HV sides isolated by means of a bidirectional fixed frequency CLLLC converter.

The control algorithm for the reference design is implemented in a C2000™ TMS320F28P550SJ or TMS320F280039C real-time MCU.

TIDA-010933 EVM Board
TIDA-010933 System Block 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 Guide/Software Guide 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 5.02.01.00 First release, on F28003x devices in C2000Ware Digital Power SDK
v2.00.00 5.03.00.00 New device support & Enhancements:
  • Added F28P55x as a supported device

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