TIDT334 September   2023 UCD3138

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Required Equipment
    3. 1.3 Considerations
    4. 1.4 Dimensions
    5. 1.5 Test Setup
  7. 2Testing and Results
    1. 2.1 Bode Plots
    2. 2.2 Thermal Images
  8. 3Waveforms
    1. 3.1 Load Transients
    2. 3.2 Output Voltage Ripple
    3. 3.3 Start-Up Sequence
    4. 3.4 Overcurrent Protection
    5. 3.5 Input Voltage Protection

Bode Plots

With HHC control, the system control loop is turned into first order, the bode plots under different conditions are shown in the following figures.

GUID-20230915-SS0I-CPCL-BB86-JBVTWCNVQK5H-low.pngFigure 2-1 Bode Plot Under 380-V, 20-A Load; ƒc: 4.47 kHz; Phase Margin: 52.455 deg; Magnitude Margin: 6.322 dB
GUID-20230915-SS0I-4HB5-QHFH-11PC5G8TRGDD-low.pngFigure 2-2 Bode Plot Under 380-V 40-A Load; ƒc: 7.61 kHz; Phase Margin: 52.760 deg; Magnitude Margin: 6.503dB
GUID-20230915-SS0I-2CLR-ZBMK-RHTV5VWNRGTZ-low.pngFigure 2-3 Bode Plot Under 380-V 84-A Load; ƒc: 6.19 kHz; Phase Margin: 50.571 deg; Magnitude Margin: 6.49 dB
GUID-20230915-SS0I-F7TF-6X18-97FPGT1R1ZX6-low.pngFigure 2-4 Bode Plot Under 400-V 20-A Load; ƒc: 8.28 kHz; Phase Margin: 54.978 deg; Magnitude Margin: 8.180 dB
GUID-20230915-SS0I-Q7ST-S0BV-JKN11ZHJ7SK5-low.pngFigure 2-5 Bode Plot Under 400-V 40-A Load; ƒc: 7.53 kHz; Phase Margin: 55.291 deg; Magnitude Margin: 8.13 dB
GUID-20230915-SS0I-LJL6-L3WR-7K9NKHVR77W3-low.pngFigure 2-6 Bode Plot Under 400-V 84-A Load; ƒc: 7.79 kHz; Phase Margin: 50.750 deg; Magnitude Margin: 6.335 dB
GUID-20230915-SS0I-3XTT-9GVX-9L5S3SFCN6N1-low.pngFigure 2-7 Bode Plot Under 420-V 20-A Load; ƒc: 5.43 kHz; Phase Margin: 65.572 deg; Magnitude Margin: 16.436 dB
GUID-20230915-SS0I-XPNL-WFWR-PZ4FKCGQWH15-low.pngFigure 2-8 Bode Plot Under 420-V 40-A Load; ƒc: 7.56 kHz; Phase Margin: 62.131 deg; Magnitude Margin: 10.876 dB
GUID-20230915-SS0I-Q0LP-RN5Q-RM8VTGMPC9HK-low.pngFigure 2-9 Bode Plot Under 420-V 84-A Load; ƒc: 9.19 kHz; Phase Margin: 51.353 deg; Magnitude Margin: 7.207 dB