TIDUEZ3B april   2021  – april 2023

 

  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 Start-Up 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

3.3.1 Test Procedures

Figure 3-2 shows the EUT setup.


GUID-20210309-CA0I-GL6C-MKML-1SRLHDXVL8WX-low.gif

Figure 3-2 EUT Setup

Power on procedure:

  1. Power on the FAN for cooling
  2. Power for 12VDC_1, power consumption should be near 0.13 A
  3. Power for 12VDC_2, power consumption should be smaller than 0.01 A
  4. Set the DC load to CC mode, 0.5 A, load on
  5. Power on the AC source (200 VAC–277 VAC), will see DC output gradually increase to 400 VDC
  6. Adjust DC load between 0–10A, for test

Power off procedure:

  1. Reduce the load to 1A
  2. Power off the AC input
  3. Power off the 12VDC_1 and 12VDC_2
  4. Turn off the cooling FAN