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我焊接了一块PCB板,现在遇到个问题,用USB供电,整个板子不能正常工作,USB口输出才1.9V,
我焊接了一块PCB板,现在遇到个问题,用USB供电,整个板子不能正常工作,USB口输出才1.9V,
2025-03-16 06:12:08
推荐回答(1个)
回答1:
很明显这两个电源芯片的输出出现了问题,可以上电后实测一下两个芯片空载输出电压和工作输出电压是否正常。
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