Bridgeless PFC Topology Simplification and Design for Performance Benchmarking

Zhengge Chen, Bochen Liu, Yongheng Yang, Pooya Davari, Huai Wang

Research output: Contribution to journalJournal articleResearchpeer-review

3 Citations (Scopus)
145 Downloads (Pure)


Compared with conventional power factor correction topologies, although dual-converter cell-based bridgeless topologies usually have higher efficiency, most of them suffer from high component counts. Thus, this article proposes general topology simplification methods for these topologies. Besides, several selected converter cells are exemplified to show the specific topology simplification processes, and the performance of the resultant simplified topologies is reviewed. Meanwhile, based on the same design specifications, in order to provide an unbiased quantitative topology comparison in terms of power loss, cost, and volume, this article introduces a consistent component database-based design procedure with electrical, thermal, and cost models. As case studies, the conventional and two selected bridgeless buck-boost-type topologies are compared by following the design procedure. The comparison results are analyzed to provide a reference for topology selection. Three prototypes are built and tested to verify the theoretical analysis.

Original languageEnglish
Article number9211796
JournalI E E E Transactions on Power Electronics
Issue number5
Pages (from-to)5398-5414
Number of pages17
Publication statusPublished - May 2021


  • Bridgeless converters
  • buck-boost converter
  • comparison
  • consistent design
  • power factor correction (PFC)
  • topology simplification


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