SG6849在单端反激式开关电源中的应用  

Flyback Switching Power Supply Based on SG6849

作　　者：郭小苏[1] 王双红[1] 

机构地区：[1]华中科技大学,湖北武汉430074

出　　处：《电源技术应用》2007年第2期38-41,共4页Power Supply Technologles and Applications

摘　　要：SG6849芯片是SG(System General)公司生产的开关电源专用集成电路,使用该芯片设计小功率开关电源,可大大减少外围电路,降低成本,电路可靠性高,且可以不带副边反馈。详细介绍了SG6849芯片的工作原理,并基于此芯片设计了一个5.6W的单端反激式开关电源,给出了实验结果。SG6849 integrated circuits are produced especially for power supply by SG （System General） company. Designing low power switching power supply with such integrated circuits can decrease parts count, decrease cost and increase reliability. This integrated circuit can work without secondary feedback. The functional block diagram and reality application circuit are introduced in detail.

关 键 词：SG6849 反激 副边反馈 

分 类 号：TN492[电子电信—微电子学与固体电子学]