同步整流技术在无刷直流电动机驱动中的应用  

Application of Synchronous Rectification on Brushless DC Motor

作　　者：刘汉民[1] 谢宝昌[1] 

机构地区：[1]上海交通大学,上海200030

出　　处：《微特电机》2005年第4期25-27,30,33,共5页Small & Special Electrical Machines

摘　　要：介绍了同步整流技术的概念,并利用该技术研究无刷直流电动机驱动系统,改善系统性能。通过实验分析,证实利用MOSFET反向导通特性,可以降低续流过程功率器件的损耗,因此可以提高系统的效率和可靠性。Synchronous rectification is introduced in this paper. Brushless DC motor driven system is researched using this new technique in order to improve the performances of the system. According to experimental analysis, the backward conductibility of MOSFET and lower losses of power electronics in commutating process are verified. Therefore the efficiency and reliability of the system are improved reasonably.

关 键 词：同步整流 电流衰减模式 双向导通 无刷直流电动机 

分 类 号：TM33[电气工程—电机]