请教手机的电源布线指导！拜谢`~

ybsui

电源不能以平面的形式`！只好用树状的形式，我不知道电源的走线是不是一层走完`~
另外电源也是个EMI，怎么消除电源的这个问题`~~`~~~~~
欢迎大家拍砖`！

wilsonchen

<P>VCC lines in the same layer is designed for simplicity.</P><P>Keep away VCC from PCB edge and route in ineer layers can helps on EMC.</P><P>Tree-pattern VCC route is not easier to resist mutual interference between VCC. Further decoupling capacitor is needed before VCC into IC pin.</P><P>wilson</P>[br]<p align=right><font color=red>+5 RD币</font></p>

daisyshao

虽然我没做过手机，以我学到的经验，是在做pcb时保持电源和地平面的完整性是很重要的。这一点就能减少板子的EMI。还有关键芯片的电源脚PIN附近要放滤波的旁路电容。大芯片电源脚附近要放去耦电容。这也是减少电源EMI的一种做法。[br]<p align=right><font color=red>+3 RD币</font></p>