The peak of the switching power supply [attached picture], is this considered high?

tonytong

The peak of the switching power supply [attached picture], is this considered high? [Copy link]

I used a switching power supply in my project, and I felt that the burrs were relatively large during use. Some power modules would cause the digital circuit to malfunction (the digital module was normal after changing the power module or DC), so I would like to ask the experts, is the burr of my switching power supply large? The output is 5V DC. Is there any good way to suppress it?

fish001

It looks very high. If it is everywhere, you should check whether the probe grounding is not clean enough. If the switching speed can be reduced, the noise can be reduced. A better PCB can also reduce the noise.

banana

The ripple is too large. Change the absorption circuit of the switch tube and the rectifier tube, and then the feedback. There is a chance.