电压缺失
时间:10-02
整理:3721RD
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做了一块板子,电源不稳定,有缺失。最开始上电的时候还可以撑一小会稳定的,过一会儿就开始有缺失了,基本是下面的样子
file:///C:/Documents%20and%20Settings/Administrator/Application%20Data/Tencent/Users/825984324/QQ/WinTemp/RichOle/%5_`WF5UDVAAP5)}H1AW)@V.jpg ,想请教一下各位,怎么解决这个问题。
接入的是12V电源,通过下面的电路,接了Spx1117M3-5.0转换为5v电压,因为电路中还有一部分要用到3.3v电压,所以5v电压通过AMS1117-3.3转换了3.3v[img]file:///C:/Documents%20and%20Settings/Administrator/Application%20Data/Tencent/Users/825984324/QQ/WinTemp/RichOle/@Z3C)4N{)0~J@G0SQ322CQU.jpg[/img]
file:///C:/Documents%20and%20Settings/Administrator/Application%20Data/Tencent/Users/825984324/QQ/WinTemp/RichOle/%5_`WF5UDVAAP5)}H1AW)@V.jpg ,想请教一下各位,怎么解决这个问题。
接入的是12V电源,通过下面的电路,接了Spx1117M3-5.0转换为5v电压,因为电路中还有一部分要用到3.3v电压,所以5v电压通过AMS1117-3.3转换了3.3v[img]file:///C:/Documents%20and%20Settings/Administrator/Application%20Data/Tencent/Users/825984324/QQ/WinTemp/RichOle/@Z3C)4N{)0~J@G0SQ322CQU.jpg[/img]