ZVS-ZCS-Buck-PWM变换器也被称为全软开关Buck电路,如图所示。其中Q1为主开关管,Q2为辅助开关,Lr与Cr分别为谐振电感和谐振电容,该电路的基本工作原理是利用Lr的续流作用,当Q2导通时,即使导通Q1,也不会有电流流过,从而实现了Q1的ZCS导通;另外,当Q2关断时,由于Q1已导通,由Lr,Cr组成的并联谐振网络并联在Q2两端,...
摘要 本文介绍了一种单管ZVS-ZCS-Buck-PWM变换器,简述了其工作原理.讨论了相关器件的参数设计问题,仿真证明了理论分析的正确,该变换器在高频开关电源中有很好的应用前景. 关键词 零电流开关;零电压开关;软开关 被引量 3 收藏 全部来源 免费下载 求助全文 ...
BUCK BOOST ZCS ZVS PWM 电力电子电路仿真课程设计报告 设计课题：BUCK ZCS PWM 主电路设计与仿真 专业班级： 学生姓名： 07级应用电子（1）班 指导教师： 薛金龙 设计时间： 魏艳君 2010.12.20-2010.12.31 电气工程学院
L. Freitas, and P Gomes, "A High-Power High- Frequency ZCS-ZVS-PWM Buck Converter Using A Feedback Resonant Circuit," IEEE PESC Conf. Rec., 1993, pp. 330-336.L. C. de Freitas and P. R. C. Gomes, "A High-Power High-Frequency ZCS-ZVS-PWM Buck Converter Using a Feedback ...
Analysis and design of a ZC-ZVS PWM converter This paper introduces a new buck topology, whose features are zero voltage and zero current switching, operation at constant frequency, regulation by pulse... HL Hey,L Matias,EE Engineer - IEEE International Symposium on Industrial Electronics: ...
J. (1993), "A Novel ZCS-ZVS-PWM DC-DC Buck Converter for High Power and High Switching Frequency: Analysis, Simulation and Experimental Results", in IEEE Proc. Of the 8th Annual Applied Power Electronics Conference and Exposition, p. 693-699....
Specifically, a discontinuous buck-boost converter is analyzed, where the ZVS transitions are obtained by managing reactive power between converter reactive elements, and modulation timing is based on three real-time variables. The different methods have been compared on one particular model item, the...