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谢谢。。
你的意思是说给BQ24620的输入加一个29V的电压源,BQ24620可以正常工作,换成TPS40210的输出,就不能正常工作?
BQ24620的推荐运行电压范围是28V,29V不推荐
如果adapter插入可以运行,可以在TPS40210的输出加LC滤波,使电压纹波减小,试试可否