一种新型带辅助桥的串联谐振全桥变换器设计  

Design of a New Series Resonant Full Bridge Converter With Auxiliary Circuits

作　　者：舒猛[1] 陈雅[2] 朱欢[1] 

机构地区：[1]空军第一航空学院航空军械工程系,河南信阳464000 [2]华中农业大学,武汉430070

出　　处：《空军雷达学院学报》2009年第6期435-438,共4页Journal of Air Force Radar Academy

摘　　要：针对传统串联谐振全桥电路存在轻载时难以实现软开关的问题,提出了一种加入低功率辅助桥臂的改进方案.首先分析了改进电路的工作原理,给出了相关计算公式.该电路实现了主辅桥臂大负载范围的ZVS.最后通过电路实验,证明了相关理论分析的正确性.Concerned with the difficulty to realize zero-voltage switching （ZVS） in the traditional series resonant full bridge circuit with a light load, an improved scheme of adding low power auxiliary circuitry in the series resonant full bridge converter was proposed. First, the operating principle of the improved converter with auxiliary circuits was analyzed, and then some correlative formulas were given. The ZVS of main and auxiliary bridge arms over a range of high load can be implemented using the improved one. Finally, by the circuit experiments it is verified that the related theoretical analysis is of correctness..

关 键 词：串联谐振 软开关 低功率辅助桥 

分 类 号：TM464[电气工程—电器]