400Hz 软开关中频电源的研制  

Development of 400Hz Soft swithing Medium frequency Power Supply

作　　者：王慧贞[1] 童永胜[1] 严仰光[1] 

机构地区：[1]南京航空航天大学

出　　处：《电力电子技术》1997年第3期52-54,57,共4页Power Electronics

摘　　要：讨论了一种５０～４００Ｈｚ软开关中频电源的构成原理。该电源的６只晶体管都工作在软开关状态，因而提高了可靠性和开关频率，使输出４００Ｈｚ的电压失真度在各种负载和电源电压条件下均小于０．５％，且电压稳态精度很高，突变负载时的响应很快，并有输出端短路切除后自行恢复工作的能力。The paper discusses the constitution principle of a soft switching medium frequency power supply,which converts 50Hz AC to 400Hz AC.Six transistors of this power supply operate under soft switching condition,which improves the reliability and switching frequency,and makes the THD of 400Hz voltage less than 0.5% under all kinds of loads and supply voltage.It has high steady precision and quick responding speed when loading and unloading.And it can recover operation itself when the short circuit of output terminal is cutoff.

关 键 词：逆变器 软开关 中频电源 制造 

分 类 号：TN86[电子电信—信息与通信工程] TM564.05[电气工程—电器]