反激式PFC开关电源的研究与设计  

Research on and Design of a Fly-back PFC Switching Power Supply

作　　者：夏明豪 杨文焕[1] 夏天宇[1] 石俊[1] 

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《电子科技》2015年第6期133-135,140,共4页Electronic Science and Technology

摘　　要：开关电源是实现电能转换和功率传递的重要设备。然而传统的开关电源功率因数低,谐波含量高,接入电网后,给电网带来了一系列严重的问题。文中设计了一款反激式PFC变换器的仿真模型,该模型是结合传统DC/DC变换中的反激式电路与基于Boost的PFC电路提出的,采用平均电流型控制作为本控制策略,最后运用Matlab仿真软件对模型进行了仿真,仿真结果表明该方案控制策略的正确性。The switching power supply is an important device for power conversion and power transmission. However, the low power factor and high harmonic content of the traditional switching power supply brings a series of serious problems to the power system. This paper designs a simulation model of the fly-back PFC converter combining the fly-back circuit in traditional DC/DC transform and the PFC circuit based on Boost with average current mode control as the control strategy. The circuit is simulated by Matlab software. The simulation results show that the scheme is a valid control strategy.

关 键 词：反激式电路 功率因数 MATLAB仿真 开关电源 

分 类 号：TN86[电子电信—信息与通信工程]