Inductorless and electrolytic capacitorless pseudo-sine current controller in LED lighting system with 1.1W/2.2W power reduction

Yi Ping Su*, Shao Wei Chiu, Chun Chieh Kuo, Yu Huei Lee, Ke-Horng Chen, Ying Hsi Lin, Chen Chih Huang, Chao Cheng Lee, Yu Wen Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

LED lighting system with the proposed pseudo-sine-current (PSC) controller removes most of the external passive components, which include inductor, electrolytic capacitor (E-cap), freewheel diode, blocking diode, and the bleeding circuit for Triac dimming control, for low cost and small volume. Besides, 1.1W and 2.2W power loss are reduced in Triac dimming control to get high efficiency of 85% at 110Vrms and 87% at 220Vrms, respectively. Furthermore, High PF of 0.98 at 110Vrms and 0.96 at 220Vrms, and low THD of 18% at 110Vrms and 19% at 220Vrms are also achieved owing to in-phase line voltage and current.

Original languageEnglish
Title of host publication2012 Proceedings of the European Solid State Circuits Conference, ESSCIRC 2012
Pages442-445
Number of pages4
DOIs
StatePublished - 14 Dec 2012
Event38th European Solid State Circuits Conference, ESSCIRC 2012 - Bordeaux, France
Duration: 17 Sep 201221 Sep 2012

Publication series

NameEuropean Solid-State Circuits Conference
ISSN (Print)1930-8833

Conference

Conference38th European Solid State Circuits Conference, ESSCIRC 2012
CountryFrance
CityBordeaux
Period17/09/1221/09/12

Keywords

  • electrolytic capacitor (E-cap)
  • LED lighting system
  • pseudo-sine-current (PSC) controller
  • Triac dimming

Fingerprint Dive into the research topics of 'Inductorless and electrolytic capacitorless pseudo-sine current controller in LED lighting system with 1.1W/2.2W power reduction'. Together they form a unique fingerprint.

Cite this