一种适用于常开型功率器件的新型谐振门极驱动电路设计  

A Novel Design of Resonant Gate Driver for Normally on Power Device

作　　者：张晋梅 田世野 申惠琪 赵芃 汤文博 ZHANG Jinmei;TIAN Shiye;SHEN Huiqi;ZHAO Peng;TANG Wenbo(State Grid Jibei Electric Power Company Institute of Economics and Technology,Beijing 100083,China;State Grid Jibei Electric Power Company Limited,Beijing 100053,China;State Grid Jibei Electric Power Company Overhaul Branch,Beijing 100031,China)

机构地区：[1]国网冀北电力有限公司经济技术研究院,北京100083 [2]国网冀北电力有限公司,北京100053 [3]国网冀北电力有限公司检修分公司,北京100031

出　　处：《电气传动》2021年第16期10-15,共6页Electric Drive

基　　金：国网冀北电力有限公司经济技术研究院(J31901090001)。

摘　　要：提出了一种适用于常开型功率器件的谐振门极驱动电路,它利用辅助电感Lr来回收门极储存的能量,减小门极驱动损耗。同时利用辅助电容Cr来产生负压,使得常开型功率器件可靠关闭。详细介绍了所提出的谐振门极驱动电路的工作原理,分析了各个模态下电路的主要波形。最后搭建了谐振门极驱动电路的仿真模型和实验平台,通过仿真和实验验证了所提出的谐振门极驱动电路的可行性。A novel resonant gate drive circuit for normally on power device was proposed.The auxiliary inductor Lr was used to recover the energy stored in the gate capacitor,and it can reduce the gate driving losses.At the same time,the auxiliary capacitor Cr was used to generate a negative voltage,so that the normally on power device can be turned off reliably.The operation principle of the proposed resonant gate driver was introduced in detail,and the main waveforms of the circuit under each mode were analyzed.Finally,the simulation model and experimental platform of the resonant gate driver were built,and the feasibility of the proposed resonant gate driver was verified by simulation and experiment.

关 键 词：常开型功率器件 谐振门极驱动 驱动损耗 模态分析 能量回馈 

分 类 号：TM46[电气工程—电器]