摘要
针对LLC变换器的控制管,采用谐振驱动电路(RGD);针对同步整流管,采用电流连续型的电流源驱动电路(CSD)。详细分析了RGD和CSD电路的工作原理、各部分损耗及谐振电感最优化设计。对于控制管,最优化设计为实现驱动损耗和关断损耗之间的平衡;对于同步整流管,最优化设计为实现驱动损耗和体二极管损耗之间的平衡。同时,设计制作了1 MHz同步整流半桥LLC原理样机,并给出实验结果。
A resonant gate driver(RGD)was proposed for the control tubes of the LLC converter. A constant current source driver(CSD)was used for the synchronous rectifiers. The working principle,drive losses and the optimization design of resonant inductance of RGD and CSD circuit were analyzed in detail. For control tubes,the optimum design was the balance between drive losses and turn- off losses;for synchronous rectifiers,the optimum design was the balance between drive losses and body diode losses. At the same time,the prototype of a 1 MHz synchronous rectifier half-bridge LLC was designed and the experimental results are given.
作者
赵清林
崔少威
李建楠
郭善胜
ZHAO Qinglin;CUI Shaowei;LI Jiannan;GUO Shansheng(Key Lab of Power Electronics for Energy Conservation and Motor Drive of Hebei Province, Qinhuangdao 066004,Hebei,China;College of Electrical Engineering, Yanshan University,Qinhuangdao 066004,Hebei,China)
出处
《电气传动》
北大核心
2019年第9期16-21,共6页
Electric Drive
基金
光宝科技电力电子技术科研基金项目(PRC20151384)
关键词
高频变换器
LLC变换器
驱动损耗
谐振驱动
high frequency converter
LLC converter
drive losses
resonant gate drive
