Quasi-Resonant LED Driver With Capacitive Isolation and High PF

Doron Shmilovitz*, Alexander Abramovitz, Iser Reichman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A simple, efficient, and low-cost quasi-resonant LED driver is presented. The proposed driver relies on capacitive safety isolation barrier and eliminates the need for a bulky isolation transformer. Thus, cost and footprint area can be reduced. This paper describes the topology and presents the theory of operation. Theoretical predictions are verified by simulation and experimental results.

Original languageEnglish
Article number7081736
Pages (from-to)633-641
Number of pages9
JournalIEEE Journal of Emerging and Selected Topics in Power Electronics
Issue number3
StatePublished - 30 Sep 2015


  • Capacitive power transfer
  • Resonant LED drive
  • current source
  • dimming


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