图中的二极管是什么作用,选择什么型号的?
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Hi
快速回复的肖特基二极管,型号是Motorola 的 MBR0530.
升压时,当MOS关闭,电感通过二极管向输出充电,而当MOS开启时,阻止输出向MOS这边放电。
二极管、电感、开关和电容构成的是一种基本升压电路拓扑BOOST电路,可以参考这个文档链接