Design and Implementation of Active Bleeder for TRIAC Dimmable LED Driver

Pin Yu Wu, Tsorng Juu Liang, Wei Jing Tseng, Chia Yu Chen

研究成果: Conference contribution

摘要

In this paper, the analysis and implementation of active bleeder for TRIAC dimmable LED driver is presented. The insufficient holding current problem occurs when LED driver is connected to TRIAC dimmer, causing TRIAC dimmer misfire and LED flicker. Therefore, a bleeder circuit is parallel-connected to provide TRIAC enough holding current. In the bleeder, the resistor is usually used to control the amount of current through the bleeder, and cause high power loss on the resistor. A bleeder circuit with an inductor, a capacitor and switches is used to provide TRIAC dimmer extra current to reduce the power dissipation by using a resistor. Finally, the hardware type of the bleeder circuit with input voltage of 90~135V is implemented, and able to applied on the TRIAC dimmable 7.2W LED driver. The bleeder can provide enough holding current, widening the conducting angle of TRIAC dimmer with no flicker and misfire occur.

原文English
主出版物標題2019 IEEE 4th International Future Energy Electronics Conference, IFEEC 2019
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781728131535
DOIs
出版狀態Published - 2019 十一月
事件4th IEEE International Future Energy Electronics Conference, IFEEC 2019 - Singapore, Singapore
持續時間: 2019 十一月 252019 十一月 28

出版系列

名字2019 IEEE 4th International Future Energy Electronics Conference, IFEEC 2019

Conference

Conference4th IEEE International Future Energy Electronics Conference, IFEEC 2019
國家/地區Singapore
城市Singapore
期間19-11-2519-11-28

All Science Journal Classification (ASJC) codes

  • 可再生能源、永續發展與環境
  • 電氣與電子工程
  • 能源工程與電力技術

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