基于改进启动回路的反激式开关电源设计  

Design of a Power Supply Converter Based on the Improved Starting Circuit

作　　者：李大鹏[1] 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221008

出　　处：《电源世界》2012年第8期28-31,共4页The World of Power Supply

摘　　要：本文以电流型脉宽调制芯片UC3844B为核心,设计了一种高效的单端反激式隔离输出电源系统,对开关电源的设计原理、各组成模块的功能以及工作过程进行了分析,并对传统的启动电路进行改进设计。实验结果表明,开关电源具有良好的工作性能,改进型启动电路能够有效缩短启动时间,避免直流母线侧能量的浪费,提高了效率。In this paper, an efficient flyback switching power was designed by using current type controller UC3844B. At the same time, the design principle of the switching power, the module functions and working process were analyzed. Experimental results show that the switching power supply has a good performance; the improved starting circuit can effectively shorten the starting time, avoid the DC side energy waste and improve the efficiency.

关 键 词：反激式开关电源 UC3844B 改进型启动回路 

分 类 号：TN86[电子电信—信息与通信工程]