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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/789003/lm5161-does-reverse-polarity-protection-diode-help-attenuate-conducted-emi-too
如果输入端包含反极性二极管保护、可以避免直流/直流转换器输入端的低通滤波器包含传导 EMI。
因为二极管无论如何 都会阻塞！
