一种基于TOP227Y的脉冲开关电源设计  

Design of Pulse Switch Power Supply Based on TOP227Y

作　　者：张元敏[1] 胡万强[1] 

机构地区：[1]许昌学院电气信息工程学院,河南许昌461000

出　　处：《现代电子技术》2008年第14期15-17,24,共4页Modern Electronics Technique

基　　金：河南省科技攻关项目(072102240032)

摘　　要：在研究脉冲开关电源技术的基础上,提出一种基于TOP227Y的脉冲开关电源设计。首先给出脉冲开关电源的总体结构,分析其工作原理,对系统中高频变压器、主电路、控制电路进行设计。接着介绍TOP227Y芯片的工作原理及各个功能块的主要作用,最后设计系统总电路图。A pulse switch power supply based on TOP227Y is introduced in the paper,after analsing its working principle, the whole structure of switch power supply is also designed, the main design content consists of the high frequency trans - former,the main circuit and the control circuit, then the working principle and the main action of each function module of TOP227Y are introduced in the paper,finally the whole circuit of system is designed.

关 键 词：PWM TOP227Y 开关电源 高频变压器 

分 类 号：TN710[电子电信—电路与系统]