几种电容降压电路的原理分析与比较  

Principle Analysis And Comparison for Some Electric Circuits with Reduced Voltage by Capacitance

作　　者：刘利斌[1] 高连军[1] 

机构地区：[1]济宁职业技术学院,山东济宁272100

出　　处：《山西电子技术》2007年第6期88-89,共2页Shanxi Electronic Technology

摘　　要：随着科技的发展,LED的性能也得到了大幅提高,应用也越来越广泛,对驱动电路的要求也越来越高。这里主要阐述了当前应用较广泛的电容降压驱动电路的工作原理和用途。电容降压驱动电路是一类新型的LED驱动电路,具有体积小、价格低、安装方便等优点,具有广阔的应用前景。介绍了多种LED电容降压驱动电路及不同的用途。Along with the development of science and technology, the performance of LED has been enhanced largely, and its application is also increasingly widespread. The request is higher and higher for the use of driving electric circuit. This article mainly elaborates the working principle and use of driving electric circuit with reduced voltage by capacitance, which is widely used at present. The driving electric circuit which reduces voltage by capacitance is a kind of new LED driving electric circuit, has the merits of small size, low price, convenient installment and so on, thus the application prospect is broad. This article introduces many kinds of driving electric circuits used by LED to reduce voltage by capacitance and their different uses.

关 键 词：电容降压 LED驱动 全波整流 复合滤波 

分 类 号：TN762[电子电信—电路与系统]