Linear PFC regulator for LED lighting with the multi-level structure and low voltage MOSFETs.

被引：0

作者：

Noge, Yuichi ^{[1
]}

Itoh, Jun-ichi ^{[1
]}

机构：

[1] Nagaoka Univ Technol, Niigata, Japan

来源：

2014 TWENTY-NINTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC) | 2014年

关键词：

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper proposes a linear PFC regulator 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, two zener diodes 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 15 W prototype. From the experimental results, the THD of input current is 5.1% and the power factor is 0.999. In addition, the simulation loss analysis demonstrates an efficiency of 91.6% for a 15.2 W prototype.

引用

页码：3311 / 3317

页数：7

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