Quasi-resonant LED driver with capacitive isolation

A. Abramovitz*, I. Reichman, D. Shmilovitz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A low part count, efficient quasi-resonant light-emitting diode driver is proposed. The proposed driver relies on a capacitive safety isolation barrier, which eliminates the need for a bulky isolation transformer; thus, the footprint area can be reduced. Operation frequencies of 100-350 kHz further contribute to miniaturisation of the proposed driver. The feasibility of the proposed topology is verified by simulation and experimental results.

Original languageEnglish
Pages (from-to)274-276
Number of pages3
JournalElectronics Letters
Issue number3
StatePublished - 5 Feb 2015


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