適合高壓輸入大功率場合的雙管正激變換器的研究

摘要：本文分析了該電路拓撲的工作原理和電路工作時的有效占空比，并導出了變換器的穩態特性，本變換器實現了兩個開關管在零電壓下導通和關斷，另兩個開關管在零電壓下關斷，最后，在1kW的組合式雙管正激變換器的樣機實驗中得到了驗證。 敘詞：雙管正激，占空比，零電壓開關 Abstract：The operation principle of the topology and the effective duty cycle are analyzed in this paper. The steady characteristic of the converter is derived. The two switches are turned on and turned off with zero voltage switching. The other two switches are turned off with zero voltage switching. Finally, experiment results are given to verify the analysis. Keyword：two transistors forward，duty cycle，zero voltage switching