摘要
软开关技术是近年来电力电子学领域中的一个研究热点。采用软开关技术可以降低开关损耗,抑制开关产生的电磁干扰,因而有助于进一步提高开关频率。该文在分析典型Buck变换器的基础上,提出了一种改进型的ZVT-PWMBuck电路,对其拓扑结构、工作原理和电路特性等作了较深入的阐述。仿真结果证实改进型电路是可行和有效的,并提高了电路的性能。
Soft-switching technology is one of the hot spots in the research area of the power electronics.With the use of it,the switching loss can be reduced,and the electromagnetic interference（EMI） also can be restrained,therefore it contributes to increase the switching frequency.On the base of analyses of typical Buck converter,an improved ZVT-PWM Buck converter is presented.The topology,operation principle and main characteristic of the improved ZVT-PWM Buck converter are deeply analyzed.Experiments show that the improved circuit is feasible and valid,and the performance of the ZVT-PWM Buck converter is enhanced.
出处
《电子质量》
2011年第5期31-33,共3页
Electronics Quality
基金
山东科技大学研究"春蕾计划"项目
项目编号:2010AZZ167
