A Current-Sourced LED Driver Compatible With Fluorescent Lamp Ballasts

被引：35

作者：

Choi, Jaeyoung ^{[1
]}

Han, Hee-Seok ^{[2
]}

Lee, Kwyro ^{[3
]}

机构：

[1] ASTAR, Inst Microelect, Singapore 117685, Singapore

[2] Silicon Mitus Technol, Cupertino, CA 95014 USA

[3] Korea Adv Inst Sci & Technol, Dept Elect Engn, Taejon 305701, South Korea

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2015年 / 30卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

AC/DC conversion; current-sourced converter; duality; fluorescent lamp (FL) ballast; light-emitting diode (LED) driver; HIGH-POWER-FACTOR; ELECTROLYTIC CAPACITOR; ELECTRONIC BALLASTS; SINGLE-STAGE; CONVERTER;

D O I：

10.1109/TPEL.2014.2352462

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A light-emitting diode (LED) driver compatible with fluorescent lamp (FL) ballasts is presented for a lamp-only replacement without rewiring the existing lamp fixture. Ballasts have a common function to regulate the lamp current, despite widely different circuit topologies. In this paper, magnetic and electronic ballasts are modeled as nonideal current sources and a current-sourced boost converter, which is derived from the duality, is adopted for the power conversion from ballasts. A rectifier circuit with capacitor filaments is proposed to interface the converter with the four-wire output of the ballast. A digital controller emulates the high-voltage discharge of the FL and operates adaptively with various ballasts. A prototype 20-W LED driver for retrofitting T8 36-W FL is evaluated with both magnetic and electronic ballasts. In addition to wide compatibility, accurate regulation of the LED current within 0.6% error and high driver efficiency over 89.7% are obtained.

引用

页码：4455 / 4466

页数：12

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