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

3.6 Input AC Current Measurements: Compliance to DO160 Harmonic Limits

All harmonics were tested according to the DO-160-G limits.

In details, the first harmonic (fundamental) of the current was measured at full load and nominal VAC (in this case 115VAC). The AC source frequency was set to 400Hz, 600Hz. and 800Hz.

For all even harmonics with order greater than 4, an absolute limit of 10mA was considered, regardless on the order number (DO-160-G limits). All graphs show each harmonic current (in mA) versus number of orders.