A current ripple cancellation circuit for electrolytic capacitor-less AC-DC LED driver

Kuan Wen Lee, Yi Hsun Hsieh, Tsorng Juu Liang

研究成果: Conference contribution

43 引文 斯高帕斯(Scopus)

摘要

This paper presents a bidirectional buck-boost current ripple cancellation circuit applied to electrolytic capacitor-less flyback LED driver with power factor correction (PFC). By operating the flyback converter in discontinuous conduction mode (DCM), high power factor can be obtained under universal input voltage range. The bidirectional buck-boost converter can minimize the twice-line-frequency output current ripple using simple open-loop pulse width modulation (PWM) control without complex control scheme, and modularization is possible for other types of converter at the PFC stage. The output current ripple can be significantly reduced without using electrolytic capacitors (E-Cap) and the power factor is near unity under universal input voltage. Finally, a 700 mA / 20 W hardware prototype is built to verify the feasibility of the proposed method.

原文English
主出版物標題2013 28th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2013
頁面1058-1061
頁數4
DOIs
出版狀態Published - 2013
事件28th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2013 - Long Beach, CA, United States
持續時間: 2013 三月 172013 三月 21

出版系列

名字Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Other

Other28th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2013
國家United States
城市Long Beach, CA
期間13-03-1713-03-21

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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