基于單周期控制的移相全橋諧振變換器

摘要：介紹了移相全橋諧振變換拓撲，結構簡單，成本低，效率高，容易實現軟開關和較低的電磁干擾。輸出部分采用Class－E倍流諧振整流器，這種整流器適合工作于高頻諧振變換器拓撲，具有低損耗、高效率、低EMI的特點，且倍流式結構，適合于低壓大電流輸出電路。控制部分采用單周期控制方法，能有效的提高電源的動態響應。分析了其工作原理并給出了仿真電路圖和結果，最后實驗結果驗證了理論和仿真分析的正確。 敘詞：全橋 零電壓 諧振變換器 單周期控制 Abstract：This paper presents Phase shift Full bridge resonant converter for telecom power supply. The proposed topology has fewer components and improves the efficiency and has little EMI problem. The output use class-E double current rectifier。Employing the one cycle control is to improve the dynamic response。The paper analyzes the basic principle of the circuit and gives the simulated circuit and results. At last ，the results of the experiment proves the analysis of converter。 Keyword：Full bridge resonant ZVS class-E one cycle control