摘要
文中研究一种无桥PFC电路,采用数字控制技术,相比于传统模拟控制的PFC电路,具有结构简单、温飘小、能实现复杂控制算法等优点。详细介绍了无桥PFC的工作原理、数字控制策略及采样方式。最后用Simulink仿真验证理论分析的正确性;并搭建了一台300W实验样机,验证了实践中的可行性。
This paper focuses on a bridgeless topology active power factor correction circuit with digital control. The construction is simpler and the efficiency is higher than the traditional boost-type PFC circuit with analog control. It also has the advantages of simple structure, small temperature drift advantages, can realize the complex control algorithm. It introduced the working principle, the bridgeless PFC digital control strategy and the sampling method. The conclusion with the theory of Simulink simulation analysis; and it buihs a prototype of the 300W, verifies the feasibility in practice.
出处
《信息技术》
2015年第9期111-114,共4页
Information Technology
关键词
无桥PFC
数字控制
采样
bridgeless PFC
digital control
sampling
