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当使用较小的栅极电阻时,开关时间变短,可能会发生振铃(阻尼振荡)。
振铃将导致振荡和EMI噪声。
当使用更大的栅极电阻时,开关时间变长。
结果导致开关损耗增加和热量产生。
在桥式电路中,因结合栅极电阻,上下MOSFET之间可能发生短路。
因此,有必要考虑最佳的栅极电阻。
关于MOSFET驱动电路,请参考“MOSFET Gate Date Circuit:Power MOSFET Application Notes”