电源技术2012，Vol.36Issue(3)：414-415,423,3.
一种无电解电容LED驱动电源的研究
Research on an electrolytic capacitor-less driver for LED
梁艳 1吴云亚1
作者信息
- 1. 盐城工学院实验教学部,江苏盐城224051
- 折叠
摘要
Abstract
A detailed analysis of the relationship between the voltage ripple and the value of the storage capacitor of PFC converter was presented in this paper.The maximum voltage, minimum voltage and average voltage of the storage capacitor as a function of the value of the storage capacitor were derived, and the determination of the value of the storage capacitor was also discussed. The voltage ripple of the storage capacitor was purposely increased to significantly reduce the value of the storage capacitor, so film capacitor could be adopted to replace electrolytic capacitor to increase the lifetime of power supply. The experiment on a 90 W prototype verifies the analyses.关键词
LED/功率因数校正/电压纹波/薄膜电容Key words
light emitting diode (LED)/PFC/voltage ripple/film capacitor分类
信息技术与安全科学引用本文复制引用
梁艳,吴云亚..一种无电解电容LED驱动电源的研究[J].电源技术,2012,36(3):414-415,423,3.
