The customer is using Pre-regulator circuit as our recommendation.
But there is always noise in the C13 capacitor.
Besides, they found when remove C13, the noise will disappear.
When using larger capacitance, the noise will decrease.
When using smaller capacitance, the noise will increase.
1. Do you know the potential reason for this noise issue? And how avoid it?
2. If it is hard to analysis, the customer is thinking of removing the capacitor.
Could you pls tell me the function of the C13 capacitor? If removed, whether there is some potential risk to the system?
Thanks for your support
