A non-electrolytic-capacitor low-power AC-DC single-stage SEPIC-Flyback LED converter

Sulaiha Ahmad, Nadia M.L. Tan

Research output: Journal PublicationArticlepeer-review

2 Citations (Scopus)


This paper presents an isolated single-stage SEPIC-flybACk AC-dc converter for supplying light emitting diode (LED) that can eliminate electrolytic capACitor adoption. The Single Ended Primary Inductor Converter (SEPIC) converter performs the power fACtor correction (PFC) function, while the flybACk converter regulates the DC stage and provides circuit isolation for LED protection. This paper analyses the operation of the proposed LED topology and verifies the performance of the circuit using PSCAD simulation. The converter AChieved a high power fACtor, low total harmonic distortion and low output voltage ripple. The proposed circuit also obtained voltage below 450 V ACross the storage capACitor, allowing low voltage rating components employment.

Original languageEnglish
Pages (from-to)105-111
Number of pages7
JournalJournal of Telecommunication, Electronic and Computer Engineering
Issue number12
Publication statusPublished - 2016
Externally publishedYes


  • AC-DC converter
  • Non-electrolytic capacitor
  • SEPIC-flyback
  • Single-stage led converter

ASJC Scopus subject areas

  • Hardware and Architecture
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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