Quasi-Resonant LED Driver With Capacitive Isolation and High PF

Doron Shmilovitz, Alexander Abramovitz, Iser Reichman

Research output: Contribution to journalArticlepeer-review

Abstract

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
Volume3
Issue number3
DOIs
StatePublished - 30 Sep 2015

Keywords

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

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