基于UC3844的多通道输出开关电源的设计  

Design of Multi-output Switching Power Supply Based on UC3844

作　　者：刘俊[1] 孙胜麟[1] 李世军[1] 

机构地区：[1]湖南工程学院电气信息学院,湘潭411101

出　　处：《湖南工程学院学报（自然科学版）》2013年第3期9-11,27,共4页Journal of Hunan Institute of Engineering(Natural Science Edition)

基　　金：湖南工程学院科研基金资助项目(xj1103)

摘　　要：设计了一种新型的基于UC3844芯片的多通道输出开关电源.详细给出了反馈电路、启动电路、漏感消除电路和变压器的设计过程.实验结果表明,该电源具有良好的性能,如电压稳定性好,输出电压纹波小,负载调整率高等.因此可用于电机控制,并具有较高的实用价值.The design of a new multi-output switching power supply based on UC3844 is proposed in this paper. The design of transformer, leakage inductance elimination circuit, start circuit and voltage and current feedback circuit are introduced in detail. Experiment results show that the power supply has good performance such as high voltage stability, low output voltage ripple, good load adjustment rate and so on. It can be used for motor control as a power module and has a better practical value.

关 键 词：UC3844 电流型PWM 反激式开关电源 

分 类 号：TN492[电子电信—微电子学与固体电子学]