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LM3478 12--48V

Other Parts Discussed in Thread: LM3478, TPS2592BL

大神,用LM3478升压从12转48电路图如图,用的时候直接输入12V时正常工作能得出48V,

可是我在输入端加一个控制三极管之后上电总是有电流太大的现象,导致电源保护,不能正常工作,

加入三极管之后的电压有2V压降,Vin引脚就只有10.5V这样,

帮忙分析一下什么问题呢?

x 出现错误。请重试或与管理员联系。