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

3.3 AC Waveforms (Input Voltage and Current, PFC Output Voltage)

All screenshots in Figure 3-6 through Figure 3-11 show the input voltage VIN (AC) and current IIN (AC) of the PFC stage, as well as the PFC voltage at 96 VAC, 115 VAC, and 134 VAC, with mains frequency = 400 Hz and 800 Hz in full load condition (C2: VPFC, C1: VIN, C3: IIN).

GUID-20220527-SS0I-XDHF-8Z42-QFMTDFV2GBHT-low.pngFigure 3-6 VIN = 96 VAC, F = 400 Hz
GUID-20220527-SS0I-816V-TSJR-NFXVXLF5TW72-low.pngFigure 3-8 VIN = 134 VAC, F = 400 Hz
GUID-20220527-SS0I-XKCL-4LRZ-GL0W3XB8W7MG-low.pngFigure 3-10 VIN = 115 VAC, F = 800 Hz
GUID-20220527-SS0I-QGNF-T9TB-GNH7MFSJL1HR-low.pngFigure 3-7 VIN = 115 VAC, F = 400 Hz
GUID-20220527-SS0I-QX8N-BDRQ-J0B7ZBSZWNDX-low.pngFigure 3-9 VIN = 96 VAC, F = 800 Hz
GUID-20220527-SS0I-ZFNW-ZBQ5-RLPNJLCQWKS9-low.pngFigure 3-11 VIN = 134 VAC, F = 800 Hz