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电子工程专辑
1 年
DC-DC的自举(BST)电容如何选取?
参考文章:DC-DC的BOOT(BST)引脚连接电容有何用? 再次简单介绍:如下图的同步BUCK型DC-DC,要想使MOS导通,很简单只需要Vgs>VGS(TH)(即VGS门限电压)即可,由于下管S极接地,且VGS(TH)一般不大,因此下管很容易达到开启条件。但对于上管,由于 ...
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