基于移相全桥的同步整流DC/DC变换器设计  

Design of Synchronous Rectification DC/DC Converter Based on Phase Shift Full Bridge

作　　者：刘孟[1] 都洪基[1] 陈湘如[2] 王佳佳[1] 

机构地区：[1]南京理工大学自动化学院,南京210094 [2]东南大学电气工程学院,南京210096

出　　处：《电源世界》2015年第3期21-25,45,共6页The World of Power Supply

摘　　要：本文详细分析了基于移相全桥的同步整流DC/DC变换器工作原理,结合软开关的实现对其中主要元器件进行了设计和选型,采用Matlab建模对变换器仿真研究,最后通过采用TMS320F28335芯片对变换器驱动信号和控制程序进行了软件设计。样机实验结果表明,成功实现了软开关和同步整流,减少了变换器的开关损耗和开通损耗,符合设计要求。This paper describes the synchronous rectification DC / DC converter works based on phase-shift full-bridge. Combining with the realization of soft-switching, the main components are designed and selected. We do simulation research on converter via Matlab modeling. Finally, we realize software design of inverter drive signal and control program by using TMS320F28335 chip. The simulation results show that soft switch and synchronous rectification are successfully realized, the switching loss and opening loss of the converter are reduced. The experiment meets the design requirements.

关 键 词：移相全桥 同步整流DC/DC变换器 

分 类 号：TN86[电子电信—信息与通信工程]