三极管是流控型器件，通过电流控制三极管的工作区，而MOSFET与之相对是压控型器件，栅-源阻抗非常大，我们一般认为MOSFET栅-源工作电流可以忽略，那既然MOSFET是压控型器件，为什么设计MOFET驱动电路时，栅极驱动电流要大呢？ 要想回答上面的问题，就不得不 ...

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