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一种适用于GaN器件的谐振驱动电路

更新时间:2020-10-27 21:28:06 大小:4M 上传用户:gsy幸运查看TA发布的资源 标签:GaN器件谐振驱动电路 下载积分:2分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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针对氮化镓(GaN)器件,传统的驱动电路是电压源型驱动,在高频下充放电回路中的寄生电感会引起栅源电压振荡,超过GaN器件的栅源耐压值,损坏GaN器件。采用谐振驱动(RGD)电路是解决上述传统驱动存在的问题的有效途径之一,利用LC谐振,在GaN器件开通和关断时提供一条低阻抗箝位路径,减小栅源电压的振荡,提供一个稳定的栅源电压。详细分析了RGD电路的工作原理,同时设计制作了1MHz的Boost变换器原理样机,并给出了实验结果。

GaN devices are traditionally driven by the voltage source circuit,and could be easily damaged when the gate-source voltage of GaN device oscillates and exceeds the maximum withstanding voltage owing to the parasitic inductance in charge and discharge circuit under high-frequency (Resonant Gate Driver)circuit represents an effective approach to solve the problem of oscillation of the gate-source voltage.A low impedance clamped path can be obtained using LC resonance when GaN devices are turned on and off,which can reduce the oscillation of gate voltage and provide a stable gate working principle of RGD circuit is described in nwhile,a prototype of 1 MHz Boost converter is designed and the experimental results are provided.

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一种适用于GaN器件的谐振驱动电路.pdf 4M

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