TIDT378 February   2024

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Testing Conditions
    4. 1.4 Considerations
    5. 1.5 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency
      1. 2.1.1 400Hz Mains Frequency
        1. 2.1.1.1 Efficiency Graph
        2. 2.1.1.2 Efficiency, Power Factor, and Input Current Harmonic Distortion (iTHD) Data
          1. 2.1.1.2.1 115VAC Input Voltage
          2. 2.1.1.2.2 90VAC Input Voltage
          3. 2.1.1.2.3 130VAC Input Voltage
      2. 2.1.2 800Hz Mains Frequency
        1. 2.1.2.1 Efficiency Graph
        2. 2.1.2.2 Efficiency, Power Factor, and Input Current Harmonic Distortion Data
          1. 2.1.2.2.1 115VAC Input Voltage
          2. 2.1.2.2.2 90VAC Input Voltage
          3. 2.1.2.2.3 130VAC Input Voltage
    2. 2.2 Thermal Images
    3. 2.3 Power Factor
      1. 2.3.1 400Hz Mains Frequency
      2. 2.3.2 800Hz Mains Frequency
    4. 2.4 Total Harmonic Distortion (iTHD)
      1. 2.4.1 400Hz Mains Frequency
      2. 2.4.2 800Hz Mains Frequency
    5. 2.5 Static Output Voltage Variation versus Load
      1. 2.5.1 400Hz Mains Frequency
      2. 2.5.2 800Hz Mains Frequency
  7. 3Waveforms
    1. 3.1 Switching Waveform on the Main FET at Full Load
    2. 3.2 AC Waveforms (Input Voltage and Current)
      1. 3.2.1 400Hz Mains Frequency
        1. 3.2.1.1 90VAC Input Voltage
        2. 3.2.1.2 115VAC Input Voltage
        3. 3.2.1.3 134VAC Input Voltage
      2. 3.2.2 800Hz Mains Frequency
        1. 3.2.2.1 90VAC Input Voltage
        2. 3.2.2.2 115VAC Input Voltage
        3. 3.2.2.3 134VAC Input Voltage
    3. 3.3 Output Voltage Ripple
    4. 3.4 Load Transients
      1. 3.4.1 100mA to 280mA
      2. 3.4.2 280mA to 100mA
    5. 3.5 Inrush Current and Start-Up
      1. 3.5.1 Full Load
      2. 3.5.2 Zero Load
    6. 3.6 Input AC Current Measurements: Compliance to DO160 Harmonic Limits
      1. 3.6.1 400Hz Mains Frequency
      2. 3.6.2 600Hz Mains Frequency
      3. 3.6.3 800Hz Mains Frequency

2.1 Efficiency

The graphs in Figure 3-17 and Figure 2-2 show the converter efficiency versus output power, AC source voltage and frequency.

The input voltage was set to 90VAC, 115VAC, and 130VAC, while the mains frequency was respectively 400Hz and 800Hz.