基于电流型脉宽调制器的单端反激式稳压电源设计  

Design of Single-end Flyback Switching Power Supply Based on Current Type PWM

作　　者：宋丹苹[1] 黄治清[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031

出　　处：《电源技术应用》2006年第6期30-33,共4页Power Supply Technologles and Applications

摘　　要：介绍了一种以UC3842电流型脉宽调制器进行控制,多路固定电压输出的40W开关稳压电源.根据UC3842的特性给出了详细的电路参数及高频变压器的设计方法,并对其性能进行实验,实验结果表明按此方法设计的开关稳压电源可靠性高。A 40W off-line flyback switch power supply with current mode controller UC3842 is introduced. Based on the features of the chip, the parameters of circuit and designing method of high-frequency transformer are given. According to the results of test, the switching power supply designed by this method has high reliability.

关 键 词：电流型脉宽调制器 反激式开关电源 占空比 

分 类 号：TN86[电子电信—信息与通信工程]