L4960单片开关电源设计  

A Design of L4960 Single Chip Switching Power Supply

作　　者：郑耀添[1] 

机构地区：[1]韩山师范学院,广东潮州521041

出　　处：《现代电子技术》2007年第12期29-31,34,共4页Modern Electronics Technique

摘　　要：现在一般应用的串联调整稳压电源,是连续控制的线性稳压电源,这种传统的串联稳压器,调整管总是工作在放大区,流过的电流是连续的,这种稳压器的缺点是承受过载和短路的能力差、效率低。介绍了开关电源的基本构成以及开关电源的核心部分功率变换器的基本类型,重点介绍了单片开关集成稳压器L4960的内部结构、工作原理并利用L4960设计斩波式变换器。In nowadays the applied series adjustable regulator is linear regulator of continuous control. The traditionol series regulator, its adjustable transistor always working at amplifier area, the electric current is continuous, the disadvantages of regulator are low efficient and capability in overload. The paper introduces basic structure of switching power supply and type of power converter,then discusses inner structure,working principle of L4960,the chopper converter is designed by L4960.

关 键 词：开关电源 DC/DC变换器 单片开关集成稳压器 L4960 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]