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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/890818/tps549d22evm-784-how-to-measure-the-loop
大家好、
我看到 TPS549D22是 DCAP3。 我是否应该添加射频、CF 和 CB 来测量环路？
谢谢。
Jerry Chen82343.
否 D-CAP3使用 VOSNS、PVIN 和 SW 引脚在内部生成注入斜坡、不应与外部斜坡注入一起使用。
对于环路测量、应选择环路注入点、以便注入阻抗介于输出电压与 VOSNS 和 FB 之间。
请参阅随附的博客 https://e2e.ti.com/blogs_/b/powerhouse/archive/2015/05/05/power-tips-how-to-measure-bode-plots-with-dcap-and-dcapx-regulators 中的图6
