TIDT292 June   2022

 

  1.   Description
  2.   Features
  3.   Applications
  4. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Dimensions
    4. 1.4 Test Setup
  5. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Power Factor and iTHD Versus Load, VAC and Frequency
      1. 2.3.1 Power Factor and iTHD Tables
    4. 2.4 Thermal Image
    5. 2.5 Bode Plots
    6. 2.6 Input AC Current Measurements: Compliance to DO160 Harmonic Limits
  6. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 AC Waveforms (Input Voltage and Current, PFC Output Voltage)
    4. 3.4 Load Transients
    5. 3.5 Inrush Current
    6. 3.6 Start-Up Sequence
    7. 3.7 Shutdown

3.7 Shutdown

The output voltage of 30 VOUT and PFC stage have been measured by switching off the AC voltage source while the load was set to 5 A, VIN to 115 VAC and the frequency to 400 Hz. Figure 3-19 shows the behavior of VPFC, VIN, VOUT, and IIN.

GUID-20220527-SS0I-VTRH-VL6D-1GDZMWDQQHRB-low.pngFigure 3-19 Behavior of VPFC and VOUT During Shutdown (C1: VIN, C2: VPFC, C3: IIN, C4: VOUT)
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