SLUAAU2 January   2024 UCC21551 , UCC27517A , UCC27624 , UCC27714

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Typical PFC Topologies
    1. 2.1 Boost PFC
    2. 2.2 Interleaved Boost PFC
    3. 2.3 Bridgeless Boost PFC
    4. 2.4 Bridgeless Totem Pole PFC
  6. 3Switches and Gate Drivers in PFC Topologies
  7. 4Summary
  8. 5References

2 Typical PFC Topologies

Some of the more popular, active topologies that are discussed here are the boost, interleaved boost, bridgeless boost, and the bridgeless totem pole. Passive topologies are not discussed here due to them typically being used in systems less than 100W. This is due to the large passive component required for higher power systems and the narrow operating ranges. The active topologies depend on MOSFET switching for control with a gate driver IC driving the MOSFETs.