TIDT400 July   2024

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Suggested Equipment
    3. 1.3 General Texas Instruments High Voltage Evaluation (TI HV EMV) User Safety Guidelines
  6. 2Testing and Results
    1. 2.1 Load Regulation
    2. 2.2 Efficiency Graphs
    3. 2.3 Power Factor (PF) and Input Current Total Harmonic Distortion (iTHD)
    4. 2.4 Efficiency, PF, and THD Data
    5. 2.5 Thermal Images
    6. 2.6 Bode Plots
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Output Current Ripple
    4. 3.4 Load Transients
    5. 3.5 Start-Up Sequence

3.4 Load Transients

Figure 3-14 and Figure 3-15 show the waveforms of output AC ripple at load transient. The high-current level is 3/4 load for 25ms. The low-current level is 1/4 load for 25ms, with a slew rate of 2.5A/μs.

PMP23464 115Vac Input, 71.4V, 1.75A to 5.25AFigure 3-14 115Vac Input, 71.4V, 1.75A to 5.25A
PMP23464 230Vac Input, 71.4V, 1.75A to 5.25AFigure 3-15 230Vac Input, 71.4V, 1.75A to 5.25A