Linear AC LED driver with the multi-level structure and variable current regulator

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

9 被引用数 (Scopus)

抄録

This paper proposes a linear AC LED driver for LED lighting applications. The proposed circuit is small in size because the circuit structure consists of only semiconductors and resistors without any reactors and electrolytic capacitors. The current bypass circuit which is connected in parallel to the LED string consists of single MOSFET, single zener diode and two resistors. The MOSFET is operated in an active state by a self-bias circuit. Thus, an external controller and high voltage gate drivers are not required. The proposed circuit is experimentally validated by using a 7 W prototype. From the experimental results, the THD of input current is 2.1% and the power factor is 0.999. In addition, the simulation loss analysis demonstrates an efficiency of 87% for a 7 W prototype.

本文言語英語
ホスト出版物のタイトル9th International Conference on Power Electronics - ECCE Asia
ホスト出版物のサブタイトル"Green World with Power Electronics", ICPE 2015-ECCE Asia
出版社Institute of Electrical and Electronics Engineers Inc.
ページ964-969
ページ数6
ISBN(電子版)9788957082546
DOI
出版ステータス出版済み - 7 27 2015
外部発表はい
イベント9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia - Seoul, 大韓民国
継続期間: 6 1 20156 5 2015

出版物シリーズ

名前9th International Conference on Power Electronics - ECCE Asia: "Green World with Power Electronics", ICPE 2015-ECCE Asia

その他

その他9th International Conference on Power Electronics - ECCE Asia, ICPE 2015-ECCE Asia
Country大韓民国
CitySeoul
Period6/1/156/5/15

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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