TIDUEY6 April   2021

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   5
  6. 1System Description
  7. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
    3. 2.3 Highlighted Products
      1. 2.3.1 C2000 MCU F2838x
      2. 2.3.2 UCC5870-Q1 Gate Driver
  8. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
      1. 3.1.1 Hardware Overview
        1. 3.1.1.1 Control Module
          1. 3.1.1.1.1 Control Mother Board
            1. 3.1.1.1.1.1 Inverter Safing - UCC5870 ASC and Fault Control
            2. 3.1.1.1.1.2 DC-DC Safing
            3. 3.1.1.1.1.3 DC-DC Converter Secondary PWM Selection
            4. 3.1.1.1.1.4 Blower Fan Control
            5. 3.1.1.1.1.5 Voltage Monitor
            6. 3.1.1.1.1.6 Resolver Interface Control
            7. 3.1.1.1.1.7 Test Points on Control Module
            8. 3.1.1.1.1.8 General Purpose Ports
            9. 3.1.1.1.1.9 Connectors and Headers on Control Mother Board
          2. 3.1.1.1.2 Power Supplies
            1. 3.1.1.1.2.1 Power Supply 5V /5A
            2. 3.1.1.1.2.2 Power Supply 12-V/1-A
            3. 3.1.1.1.2.3 Power Supply 15-V/0.5-A
          3. 3.1.1.1.3 TCAN4550 module
          4. 3.1.1.1.4 Dual TCAN Module
          5. 3.1.1.1.5 Analog Back End Module
          6. 3.1.1.1.6 Resolver Analog Front End Module
        2. 3.1.1.2 Inverter Module
          1. 3.1.1.2.1 Inverter Mother Board
            1. 3.1.1.2.1.1 Connectors and Headers on Inverter Mother Board
            2. 3.1.1.2.1.2 Jumper and Test Points on Inverter Module
          2. 3.1.1.2.2 Inverter Gate Driver Module
            1. 3.1.1.2.2.1 Inverter Gate Drive Power Supply Module
          3. 3.1.1.2.3 Inverter Current Sense Module
          4. 3.1.1.2.4 Inverter Voltage Sense Module
        3. 3.1.1.3 DC-DC Bidirectional Converter Module
          1. 3.1.1.3.1 DC-DC Converter Mother Board
          2. 3.1.1.3.2 DC-DC Gate Driver Module
    2. 3.2 Resource Mapping
    3. 3.3 Test Setup
    4. 3.4 Test Results
  9. 4General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  10. 5Design and Documentation Support
    1. 5.1 Design Files
      1. 5.1.1 Schematics
      2. 5.1.2 BOM
    2. 5.2 Software
    3. 5.3 Documentation Support
    4. 5.4 Support Resources
    5. 5.5 Trademarks
  11. 6About the Author

Features

  • EV traction inverter with SiC power stage running at high speed (up to 20,000 RPM)
  • Bi-directional HV-LV phase-shifted full bridge (PSFB) DC-DC converter with SiC primary FET
  • Software based resolver to digital conversion (RDC) supporting motor run at high speed
  • Integrated control of traction inverter and DCDC converter using single TMS320F28388D
  • TUV SUD assessed ASIL D functional safety concept based on ASIL decomposition
  • Peak current mode control (PCMC) with no external support circuitry for PCMC function with synchronous rectification (SR) switching scheme