一种输出可调智能开关稳压电源设计  

Adjustable Output Intelligent Switching Power Supply

作　　者：周国雄[1] 晏密英[1] 

机构地区：[1]中南林业科技大学电子与信息工程学院,湖南省长沙市410004

出　　处：《微计算机信息》2008年第34期187-189,共3页Control & Automation

基　　金：中南林业科技大学青年科学研究基金重点项目(07010A)

摘　　要：设计了一种输出可调智能开关稳压电源。该系统由场效应管组成DC-DC推挽拓扑电路,采用AT89S52单片机控制DA芯片调整开关电源控制芯片SG3525输出脉宽,实现PWM控制输出电压。系统测试和运行结果表明,该稳压电源具有在一定范围内可调,结构简单,工作可靠的特点,是一种较为理想的实用化电源。An intelligent switching power supply which has adjustable output is designed. In this system the DC-DC push-pull circuit is formed by FET. The output pulse width of controller chips SG3525 is modified through AT89S52 SCM controlling t DA chip and output voltage is controlled by PWM. System testing and operational results show that the voltage regulator power supply is adjustable Within a certain scope, its structure is simple, and be reliable, so it is the practical use of power.

关 键 词：开关电源 输出可调 PWM控制 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]