长寿命LED驱动电路专用电解电容器应用特性分析

本文提出了LED的长寿命与相对短寿命电解电容器之间的矛盾、影响LED灯及驱动电路寿命的因素。简单介绍了解决LED寿命与电容器寿命的解决方案,提出了超长寿命电解电容器是解决LED灯及LED驱动电路寿命的最适用的解决方案。介绍了国内外长寿命LED用电解电容器的现状。提出了小体积是高压电解电容器的技术关键,长寿命、低阻抗是长寿命低压电解电容器的技术关键。介绍了可以替代国外长寿命LED电解电容器的我国具有自主知识产权电解电容器。

An Analysis of the Application Features of Electrolytic Capacitor Specifically for Long-duration LED Drive Circuit

This paper presents the conflicts between electrolytic capacitors of long duration and relatively short duration in LED,and tells factors that determine the duration of LED light and its drive circuit.In addition,the author introduces briefly ways to deal with the duration problem of LED and capacitors,and states that ultra-long-duration electrolytic capacitor is the most applicable approach to solving the duration problem of LED light and LED drive circuit.The author summarizes current situation of long-duration LED electrolytic capacitors, and demonstrates that small volume is key to high-voltage electrolytic capacitors,and low impedance is key to long-duration and low-voltage electrolytic capacitor.The paper finally introduces one type of electrolytic capacitors with independent intellectual property rights,which can replace long-duration LED electrolytic capacitors abroad.