基于DSP控制的Semi-bridgeless Boost PFC设计  

Design of Semi-bridgeless Boost PFC Converters Based on DSP Control

作　　者：杨淇[1] 姚文熙[1] 吕征宇[1] 

机构地区：[1]浙江大学,电力电子技术国家专业实验室,浙江杭州310027

出　　处：《电子技术（上海）》2016年第4期79-83,73,共6页Electronic Technology

摘　　要：通过去除传统Boost PFC电路的整流桥,基本型无桥Boost PFC电路有可能取得比传统Boost PFC电路更高的效率。Semi-bridgeless Boost无桥PFC拓扑通过增加两个回路二极管可以降低基本型无桥Boost PFC电路的共模干扰。在此研究了基于DSP数字控制技术的Semi-bridgeless Boost无桥PFC拓扑的应用,详细介绍了该电路连续导通模式的设计方法并给出了建模和仿真结果。根据设计搭建了DSP数字控制Semi-bridgeless Boost无桥PFC拓扑平台,在500W纯阻性负载下进行了实验并给出了实验结果。实验结果验证了该设计电路的可行性及优良的工作特性。By eliminating the diode bridge in the conventional boost power factor corrected converters, the dual boost power factor corrected converters may feature higher efficiency. The Semi-bridgeless boost power factor corrected converters decrease the common noise through adding two return diodes. This paper researches on application of semi-bridgeless boost power factor corrected converter based on DSP digital control technique and gives the detailed design, modeling result and simulations. According to the design, the paper builds a platform of semi-bridgeless boost power factor corrected converter and makes an experiment in case of 500 W resistive load in the laboratory. The experiment results indicate the designed circuit is feasible and superior.

关 键 词：功率因数校正 二极管回流 DSP数字控制 连续导通模式 

分 类 号：TN624[电子电信—电路与系统]