TIDT334 September   2023 UCD3138

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Dimensions
    5. 1.5 Test Setup
  7. 2Testing and Results
    1. 2.1 Bode Plots
    2. 2.2 Thermal Images
  8. 3Waveforms
    1. 3.1 Load Transients
    2. 3.2 Output Voltage Ripple
    3. 3.3 Start-Up Sequence
    4. 3.4 Overcurrent Protection
    5. 3.5 Input Voltage Protection

3.2 Output Voltage Ripple

Output voltage ripple waveforms under different conditions are shown in the following figures.

Channel 1 is the AC portion of the output voltage, channel 3 is primary resonant current, and channel 4 is load current.

GUID-20230915-SS0I-NHJ6-TW3S-MZB9ZWG7RP3L-low.pngFigure 3-8 Output Voltage Ripple Under 380-V,
0-A Load
GUID-20230915-SS0I-G4JL-26MR-DHJ3FZJWFXGQ-low.pngFigure 3-10 Output Voltage Ripple Under 380-V,
84-A Load
GUID-20230915-SS0I-FJNK-9V49-R2RTNT9PBXNC-low.pngFigure 3-12 Output Voltage Ripple Under 400-V,
40-A Load
GUID-20230915-SS0I-0DJZ-XTFJ-WGVFW223KNWC-low.pngFigure 3-14 Output Voltage Ripple Under 420-V,
0-A Load
GUID-20230915-SS0I-BNC4-LWJB-M4MKQKR3SSVT-low.pngFigure 3-16 Output Voltage Ripple Under 420-V,
84-A Load
GUID-20230915-SS0I-PW0G-KPX8-1T2S9ZZGJ1R4-low.pngFigure 3-9 Output Voltage Ripple Under 380-V,
40-A Load
GUID-20230915-SS0I-NT8C-L0HH-2BNGFKSBRD74-low.pngFigure 3-11 Output Voltage Ripple Under 400-V,
0-A Load
GUID-20230915-SS0I-XXJQ-GV2D-TRLGTTLJP7VQ-low.pngFigure 3-13 Output Voltage Ripple Under 400-V,
84-A Load
GUID-20230915-SS0I-1BNK-2TV5-FT2D9WWZWHWR-low.pngFigure 3-15 Output Voltage Ripple Under 420-V,
40-A Load