电源电路中的EMC和EMI如何才能克服掉呢?
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做好layout,主要是:
1 尽量减少有高di/dt的回路面积
2 尽量减小高du/dt的节点大小
3 尽量减少线路阻抗
4 注意信号传输回路的布线(易受干扰)
除此之外,选用low noise的电源芯片,例如TPS82671
更多内容可以学习“Achieving low noise and low EMI performance with DC/DC switching regulators”系列课程。