TIDT332 May   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 Dimensions
    4. 1.4 Test Setup
      1. 1.4.1 Hardware Setup
      2. 1.4.2 Firmware Setup
      3. 1.4.3 Test Static Operation
      4. 1.4.4 Test Soft-Start Process
      5. 1.4.5 Test Voltage Balance Performance
      6. 1.4.6 Test Bidirectional Transition Process
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Bidirectional Transient
    3. 3.3 Start-Up Sequence

3.2 Bidirectional Transient

Figure 3-13 through Figure 3-16 show the bidirectional current transition from +40A to –40A on the LV side.

  • Channel 1 (dark blue) is the current on the LV side
  • Channel 2 (light blue) is the Vds of GaN on the HV side and high bridge
  • Channel 3 (purple) is the Vds of MOS on the LV side
  • Channel 4 (green) is the resonant current on the HV side
PMP41037 Current Transient From +40A (Forward) to 40A (Backward), OverviewFigure 3-13 Current Transient From +40A (Forward) to 40A (Backward), Overview
PMP41037 Current Transient From +40A (Forward) to –40A (Backward), Zoom in at +40AFigure 3-15 Current Transient From +40A (Forward) to –40A (Backward), Zoom in at +40A
PMP41037 Current Transient From 40A (Forward) to –40A (Backward), Zoom in at 0AFigure 3-14 Current Transient From 40A (Forward) to –40A (Backward), Zoom in at 0A
PMP41037 Current Transient From 40A (Forward) to –40A (Backward), Zoom in at –40AFigure 3-16 Current Transient From 40A (Forward) to –40A (Backward), Zoom in at –40A