电流控制型多路输出开关电源设计与实现  

Design and Realization of Multiple-output Switching-mode Power Supply with Current-mode Control

作　　者：韩敏[1] 孟颖悟[1] 

机构地区：[1]中国航空计算技术研究所,陕西西安710068

出　　处：《航空计算技术》2011年第3期89-92,共4页Aeronautical Computing Technique

基　　金：航空科学基金项目资助(20100231001)

摘　　要：阐述了一种基于电流型脉宽调制控制器的多路输出反激变换器的设计。采用输出电压加权反馈和变压器绕组设计技术,实现了较高的多路输出电压的交叉调整率。实验结果表明,15V输出的调整率为1.6%,交叉调整率为4.86%。该电路实现简单,效率高,可靠性高,在实际应用中具有重要价值。A multiple-output switching single-ended flyback power supply based on current mode pulse-width-modulation（PWM） controller is designed in this paper.With weighted output-voltage control and winding arrangement of the transformer,cross regulation of the designed multiple-output power supply can be effectively improved.Experiment results show that voltage regulation and cross regulation of 15V output are 1.6% and 4.86% respectively.Furthermore,the designed circuit,characterized by simple implementation,high efficiency and reliability,has a great applied importance.

关 键 词：开关电源 反激变换器 电流控制 交叉调整率 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]