TIDT353 September   2023

 

  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 Transient Response
    2. 3.2 Start-Up Sequence
    3. 3.3 Output Voltage Ripple

3.3 Output Voltage Ripple

Output voltage ripple is shown in the following figures.

In the following waveforms, channel 1 in dark blue is load current; channel 2 in light blue is input voltage; channel 3 in purple is AC portion of output voltage; channel 4 in green is the primary current.

GUID-B1D672BB-8E55-4811-836F-A0EDB77727B5-low.pngFigure 3-14 Output Voltage Ripple With 400 VDC, ±20-VAC Input, 0-A Load
GUID-B266BF09-9881-411C-8626-71CE4A3533C9-low.pngFigure 3-16 Output Voltage Ripple With 400 VDC, ±20-VAC Input, 84-A Load
GUID-2B6E12BA-C7CD-4106-B300-6E4304268B01-low.pngFigure 3-15 Output Voltage Ripple With 400 VDC, ±10-VAC Input, 42-A Load