TIDT244 July   2021

 

  1. 1Description
  2. 2Test Prerequisites
    1. 2.1 Voltage and Current Requirements
    2. 2.2 Required Equipment
  3. 3Testing and Results
    1. 3.1 Thermal Images
    2. 3.2 Efficiency and Power Dissipation Graph
    3. 3.3 Efficiency and Power Dissipation Data
    4. 3.4 Current Regulation
    5. 3.5 Voltage Regulation
  4. 4Waveforms
    1. 4.1 Start-up
    2. 4.2 Switch Node
    3. 4.3 Output Voltage Ripple
    4. 4.4 Current Loop to Voltage Loop Transition
    5. 4.5 Voltage Loop to Current Loop Transition
    6. 4.6 Bias Voltage Start-up
    7. 4.7 Bias Voltage Switch Nodes
    8. 4.8 Output Current Sense Signal

2.2 Required Equipment

  • Li-Ion batteries or load (active or resistive), 400 V, 2 A, 800 W minimum
  • Input source power supply, adjustable, 0 V–500 V, 1000 W, 3 A minimum
  • Oscilloscope and high-voltage probes
  • Digital multimeters
  • 12-V bias supplies, 100 mA minimum
  • Function generator, adjustable frequency, amplitude and duty cycle