数字控制开关电源的设计  

Design of Switching-Mode Power Supply of Digital Control

作　　者：刘典文[1] 

机构地区：[1]衡阳师范学院物理与电子信息科学系

出　　处：《微计算机信息》2008年第10期224-226,共3页Control & Automation

基　　金：<基于自适应模糊控制的数字化有源电力滤波技术研究>湖南省自然科学基金项目(05JJ40001)

摘　　要：基于PWM(脉冲宽度调制)控制器和MOSFET(金属-氧化物-半导体场效应管)集成芯片TOPSwitch-FXTOP234Y,分析和探讨了电压可调数字控制开关电源电路的设计。要求对5～40V范围内电压的步加、步减调节,步进精度为0.2V,并通过双向反馈电路提高电压稳定性。Basing on the controller of PWM and MOSFET to gather the chip TOPSwitch-FX TOP234Y,the paper analyzed and ex-plored the design of the electric circuit of adjustable electric voltage switching-mode power supply of digital control. This design re-quests to regulate the steps to add and steps to reduce of electric voltage between 5V and 40V,with the accuracy of amount being 0.2 V, and through the feedback electric circuit to raise the stability of electric voltage.

关 键 词：数控开关电源 TOPSwitch-FX 计数控制 数模转换器 电路设计 

分 类 号：TN86[电子电信—信息与通信工程]