TIDT249 September   2021

 

  1. 1Description
  2. 2Test Prerequisites
    1. 2.1 Voltage and Current Requirements
    2. 2.2 Required Equipment
    3. 2.3 Dimensions
  3. 3Test Results
    1. 3.1 Efficiency
    2. 3.2 System Performance
    3. 3.3 Bode Plots
    4. 3.4 Efficiency and Regulation Data
    5. 3.5 Thermal Data
  4. 4Waveforms
    1. 4.1 PFC Waveforms
    2. 4.2 CLLLC Waveforms

3.2 System Performance

The following figures summarize the total system efficiency, system losses, total harmonic distortion (THD), and the normalized output voltage regulation accuracy.

The power density achieved in this design is 3.8 kW/L (62.5 W/in3). This comes with a total system efficiency of 96.5%. Loads above 1.5 kW have a THD < 5% and the regulation accuracy of the output voltage is roughly within ±0.06%.

The graphs in Figure 3-4 use the following conditions:

  • VIN,RMS = 240 V
  • VOUT = 350 V
  • Coolant Temperature: 20 °C
GUID-20210812-SS0I-M1DX-G231-VVN2BX2CQXH3-low.pngFigure 3-4 System Performance