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

2.1 Efficiency Graphs

Figure 2-1 shows efficiency both with bias power and without bias power. Bias power includes power to the controller and drive circuitry. The enhanced efficiency at lighter loads is enhanced by turning off one of the phases. This, along with the high-efficiency enabled by the GaN switches and the ZVS control, enables a flat efficiency over a wide operating range.

PMP23475 Efficiency Graph

VIN = 230VRMS

VOUT = 400V

Figure 2-1 Efficiency Graph