Boundary Conduction Mode Control of a Boost Converter with Active Switch Current-Mirroring Sensing

Mehrdad Biglarbegian, Namwon Kim, Babak Parkhideh

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

This letter presents a control scheme to operate a boost converter in boundary conduction mode (BCM). In the proposed method, it is assumed that the zero-current information is not available for controlling the converter operation mode. Therefore, a cursor is identified to detect the converter operation mode, i.e., continuous conduction mode/BCM. Details of the cursor and associated control method will be discussed in this letter. We demonstrate experimentally the effectiveness of the proposed method on a GaN boost converter whose active switch current is monitored through a current-mirroring technique.

Original languageEnglish
Article number7953525
Pages (from-to)32-36
Number of pages5
JournalIEEE Transactions on Power Electronics
Volume33
Issue number1
DOIs
StatePublished - Jan 2018
Externally publishedYes

Keywords

  • Boundary conduction mode (BCM)
  • DC-DC GaN boost converter
  • SenseFET
  • SenseGaN
  • current mirroring
  • zero current detection
  • zero current switching

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