摘要
针对氮化镓(GaN)功率器件在高频应用中因寄生参数带来的输出电压振铃问题,这里研究了驱动电路寄生参数和栅极驱动阻抗匹配影响GaN变换器振荡的机理。从驱动电路优化设计出发,提出了抑制开关器件电压振铃的解决办法。仿真和实验结果验证了所提方法的有效性。
Aiming at the problem of output voltage oscillation caused by parasitic parameters in high frequency applications of gallium nitride(GaN)power devices,the mechanism of driving circuit parasitic parameters and gate drive impedance matching affecting the oscillation of GaN converter is studied.The solutions arising from the drive circuit optimization design for voltage oscillation suppression are proposed.Finally,the simulation and experimental results confirmed the effectiveness of proposed solutions.
引文
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