一种高功率因数电源的设计与实现  

Design and implementation of a high power factor power supply

作　　者：闻长远[1] 王雨曦[1] 江超[1] 王立中[1] 

机构地区：[1]武汉大学电子信息学院,湖北武汉430079

出　　处：《电子设计工程》2009年第7期54-55,58,共3页Electronic Design Engineering

摘　　要：介绍以CCM模式的功率因数校正(PFC)控制器UCC28019为核心的高功率因数电源设计。论述其基本原理及软硬件实现。采用PWM调制技术使输出电压数字可调,通过闭环反馈调节使电源功率因数达到98%以上。以MSP430F449为控制和运算核心,实时显示当前电源参数。该系统可有效地抑制电流谐波,校正功率因数,达到较好的性能指标,具有一定实用性。The design of high power factor power supply which uses the CCM mode PFC controller UCC28019 as a core is introduced in this paper.The basic principles and the hardware and software implementation are discussed.The system design uses PWM modulation technique for adjustable the output voltage, and using a closed-loop feedback regulation, the power factor is more than 98%.The system uses MSP430F449 as the control and computing core, and displays the current power supply parameters at realtime.The system restains current harmonic, revises the power factor,achieves a preferable performance and has a certain practicability.

关 键 词：高功率因数 功率因数校正(PFC) 脉宽调制(PWM) 闭环反馈调节:UCC28019 

分 类 号：TM46[电气工程—电器]