基于UC3842集成控制器的单端反激电源设计  

A single-chip flyback power based on UC3842 integrated controller

作　　者：王新星[1] 李宏[1] 

机构地区：[1]西北工业大学航海学院,陕西西安710001

出　　处：《电源技术》2013年第8期1442-1445,共4页Chinese Journal of Power Sources

摘　　要：反激变换器具有高可靠性、效率高、电路拓扑简洁、输入输出电气隔离、升降范围宽、易于多路输出等优点,反激变换器是中小功率开关电源理想的电路拓扑。因此在小功率开关电源产品中得到了广泛的应用。基于电流型PWM集成控制器UC3842设计并制作出一款7路输出的单端反激电源。试验结果表明,所制作的开关电源具有稳压性能优良,纹波小等优点。The flyback converter have lots of advantages such as high reliability, high efficiency, simple circuit topology, electrical isolation of input and output, and wide range of movements, and easy to multiple output. It is an ideal power supply circuit topology for small and medium power switch. Therefore, flyback converter has been widely used in small switching power supply products. In this paper, a 7-output single-ended flyback power based on current-mode PWM controller UC3842 was designed. Experimental results show that the production of switching power have the advantages of excellent regulator, and small ripple.

关 键 词：单端反激 开关电源 UC3842 

分 类 号：TM344[电气工程—电机]