TIDT369B November   2023  – July 2024

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   Resources
  6. 1System Description
    1. 1.1 System Block Diagram
    2. 1.2 Key System Specification
    3. 1.3 Design Consideration
      1. 1.3.1 Boost Inductor Design
      2. 1.3.2 High Frequency Power Switch Selection
      3. 1.3.3 Input AC Voltage Sensing
      4. 1.3.4 Bulk Voltage Sensing
      5. 1.3.5 Input Current Sensing
      6. 1.3.6 Baby Boost Design
      7. 1.3.7 Relay
      8. 1.3.8 Protection
        1. 1.3.8.1 Over Voltage Protection
        2. 1.3.8.2 Over Current Protection
  7. 2Download Firmware
  8. 3Power Up
    1. 3.1 Required Equipment
    2. 3.2 Considerations
    3. 3.3 Start-Up Sequence
  9. 4Testing Results
    1. 4.1 Start-Up Waveform
    2. 4.2 THD Performance
    3. 4.3 Power Factor
    4. 4.4 Efficiency
      1. 4.4.1 Efficiency Graph
      2. 4.4.2 Efficiency Data
    5. 4.5 E-meter Performance
      1. 4.5.1 E-meter Graphs
      2. 4.5.2 E-meter Data
    6. 4.6 Load Transients
    7. 4.7 Input Current Waveforms
    8. 4.8 AC Drop Test
    9. 4.9 Thermal Images
  10. 5External Reference

1.3.8.1 Over Voltage Protection

Vbus voltage is measured by ADC, firmware turns off PFC if Vbus exceeds 450V.