SDAA026 June   2025 TPSI3052

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Using a Solid-State Relay as an Isolated 15V Supply
  6. 3Topology of Totem Pole PFC for Applying Turn On Switch
  7. 4Original Implementation for Driving PFC Slow Switch at High-side and Low-side
  8. 5Achieving Performance for Driving PFC Slow Switch at High-side and Low-side
  9. 6Test Results Comparing Before and After for High-side Implementation
  10. 7Summary
  11. 8References

5 Achieving Performance for Driving PFC Slow Switch at High-side and Low-side

To improve the driving capability of not only the AC input voltage, but also of the DC input voltage or the battery voltage, the VDD of the driver IC high-side is generated using TPSI3052. The high-side FET can be driven even when the FET is a DC input, and the circuit is configured as seen in Figure 5-1.

Improving Additional Circuit for Operating PFC Slow Switch at High-side (Q1) Figure 5-1 Improving Additional Circuit for Operating PFC Slow Switch at High-side (Q1)