【摘要】 为提高开关电源的效率和功率密度,提出一种新型倍流整流变换器的磁集成方案。结合半桥变换器的工作原理,详细分析集成磁件内部交、直流磁通分布。推导出集成磁件的等效电路模型,评估集成磁件的等效参数测量。提出两种副边绕组为一匝的解决方案,可获得最短绕组路径或消除泄露磁场。建立样机验证该方案的可行性,并对各种集成磁件间转化机理和应用特点进行总结。更多还原

【Abstract】 A novel current doubler rectifier with magnetic integration in switching-mode power converter was proposed to improve efficiency and power density.With the operation theory of half-bridge converter,the AC and DC fluxes in the integrated magnetics were discussed in detailed.The equivalent circuit model is derived and the equivalent parameter measurement is evaluated.Two solutions to realize secondary windings with one turn can obtain the lowest winding length and eliminate the leakage flux effect.The prototype was built to validate the feasibility.Finally,the development mechanism and features among different integrated magnetics were summarized.更多还原