TIDT415 March   2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Dimensions
  7. 2Test Results
    1. 2.1 Efficiency Graphs
    2. 2.2 THD
    3. 2.3 Data
  8. 3Waveforms
    1. 3.1 Switching Waveforms
  9.   References

3.1 Switching Waveforms

Figure 3-1 through Figure 3-4 show Switching behavior. Test conditions for these waveforms occur at:

  • VIN: 230V
  • VOUT: 400V
  • IOUT: 12.6A
Note: Several operating points are illustrated to demonstrate the topology and controls ability to maintain ZVS when the input voltage is both above and below ½VOUT.
PMP23475 Average Inductor and Input Currents Figure 3-1 Average Inductor and Input Currents
PMP23475 VIN Less Than ½VOUT Figure 3-2 VIN Less Than ½VOUT
PMP23475 VIN Greater Than ½VOUT Figure 3-3 VIN Greater Than ½VOUT
PMP23475 VIN Equal to ½VOUT Figure 3-4 VIN Equal to ½VOUT