SLVT230 November   2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Safety Considerations
    5. 1.5 Dimensions
    6. 1.6 Test Setup
  8. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
  9. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Load Transients
    4. 3.4 Start-Up Sequence
    5. 3.5 Shut-down Sequence
  10. 4Static Regulation
  11. 5Transformer Details
    1. 5.1 Material List
    2. 5.2 Winding Details
    3. 5.3 Schematic
    4. 5.4 Winding Instructions
    5. 5.5 Details about Core, Air Gap and Bobbin
    6. 5.6 Bobbin Mechanical Details
  12.   Trademarks

3.1 Switching

Switching behavior is shown in Figure 3-1 and Figure 3-3.

PMP31376 Drain-Source Waveform of Q3 at 375VDC, 24V Output and 4A Load Figure 3-1 Drain-Source Waveform of Q3 at 375VDC, 24V Output and 4A Load
PMP31376 Drain-Source Waveform (Vds) of Q3 at 375VDC, 24V Output and 4A Load (100 nsec/division) Figure 3-2 Drain-Source Waveform (Vds) of Q3 at 375VDC, 24V Output and 4A Load (100 nsec/division)
PMP31376 Vds of Q3 and D7 Anode-Ground Waveforms at 375VDC, 24V Output and 4A Load Figure 3-3 Vds of Q3 and D7 Anode-Ground Waveforms at 375VDC, 24V Output and 4A Load