TIDUEZ3A April   2021  – June 2022

 

  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 LMG342xR030
      2. 2.3.2 TMS320F28002x
      3. 2.3.3 OPA607
      4. 2.3.4 UCC21222
  8. 3Hardware, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
    2. 3.2 Test Setup
    3. 3.3 Test Results
      1. 3.3.1 Test Procedures
      2. 3.3.2 Performance Data: Efficiency, iTHD, and Power Factor
      3. 3.3.3 Functional Waveforms
        1. 3.3.3.1 Current Sensing and Protection
        2. 3.3.3.2 Power Stage Startup and Input Waveforms
        3. 3.3.3.3 AC Drop Test
        4. 3.3.3.4 Surge Test
        5. 3.3.3.5 EMI Test
      4. 3.3.4 Thermal Test
      5. 3.3.5 GaN FET Switching Waveform
  9. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
    2. 4.2 Documentation Support
    3. 4.3 Support Resources
    4. 4.4 Trademarks
  10. 5About the Author
  11. 6Revision History

Power Stage Startup and Input Waveforms

Figure 3-10 shows the startup waveform with light load.


GUID-20210309-CA0I-H27V-VRVQ-JGZF3XRBJ7HV-low.png

Figure 3-10 Startup Waveform With Light Load

Figure 3-11 shows the input current and voltage waveform under 200-V input and 4-kW load conditions.


GUID-20210309-CA0I-GRBV-QZVR-34QPP5QBDWKD-low.png

Figure 3-11 Input Current and Voltage Waveform, 200-V Input and 4-kW Load

Figure 3-12 shows the input current and voltage waveform under square AC input.


GUID-7B9D4629-0A53-4B40-B07F-996E82FEAB06-low.png
Figure 3-12 Input Current and Voltage Waveform, Under 230-V Square AC Input