SLUAAY1 October   2024 UCC28064A

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Interleaving PFC Principle of Operation
  6. 3Original PFC Design with Internal Line Feed-Forward block
  7. 4Current Phenomenon of Operating With UCC28064A Internal Line Feed Forward Function
  8. 5Achieving Adaptive Current Control PFC With UCC28064A
  9. 6Test Results Comparing Original PFC Design to Adaptive PFC Design
  10. 7Summary
  11. 8References

7 Summary

As a result of various tests and measurement of various waveforms after applying the adaptive current PFC design as above, problems such as excessive inductor current value increase and temperature rise of PFC block components during low voltage operation were improved, and we can see that the problem is solved even at 90Vac to 264Vac or 264Vac to 90Vac line transient conditions. In conclusion, the desired performance was achieved by applying adaptive current PFC external circuit.