TIDUFJ9 July   2026

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 DC/DC Boost Converter
      1. 2.2.1 Boost Inductor Design
      2. 2.2.2 Rectifier Diode Selection
      3. 2.2.3 Boost Cooling Concept
      4. 2.2.4 MPPT Operation
    3. 2.3 DC/AC Converter
      1. 2.3.1 Inverter Inductor Design
      2. 2.3.2 DC-Link Capacitor
      3. 2.3.3 Cx Capacitance Selection
      4. 2.3.4 Cy Capacitance Selection
    4. 2.4 Highlighted Products
      1. 2.4.1 LMG366xR025 650V 25mΩ GaN FET With Integrated Driver and Protection
      2. 2.4.2 TMS320F28P551 Real-Time Microcontrollers
        1. 2.4.2.1 Hardware Features
        2. 2.4.2.2 Software Features
      3. 2.4.3 TMCS1123 - Precision 250kHz Hall-Effect Current Sensor With Reinforced Isolation
      4. 2.4.4 INA185 26V, 350kHz, Bidirectional, High-Precision Current Sense Amplifier in Ultra Small (SOT-563) Package
  9. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
    2. 3.2 Test Setup
      1. 3.2.1 Testing TIDA-011008
    3. 3.3 Test Results
      1. 3.3.1 Testing TIDA-011008 Boost Stage
      2. 3.3.2 Testing TIDA-011008 DC/AC Stage
      3. 3.3.3 Total System Testing
  10. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
    2. 4.2 Tools and Software
    3. 4.3 Documentation Support
    4. 4.4 Support Resources
    5.     Trademarks
  11. 5About the Author

Description

This reference design provides an overview into the implementation of a GaN-based single-phase string inverter. The design consists of one string input, able to handle up to 10 photovoltaic (PV) panels in series. The nominal rated power from string inputs to a single-phase grid connection at 230V is up to 3.6kW. Digital control of the three power stages is executed on a single C2000™ MCU. This board also features a WiFi® communication port to enable easy and remote monitor and control access.