J
Jamie Morken
- Jan 1, 1970
- 0
Hi,
I am making a 4 layer PCB and have multiple supply rails (12V, 5V, 3.3V,
2.5V, 1.2V). I have put all of the supplies on the internal layer2 as
polygons, some of the polygons look like large "C" shapes, is it better
to close these polygons to make them loops, or is it better to leave
them open? I think the loops will have lower inductance than open
branches, but not sure if they are recommended over using branches.
Also are loops better than branches for common mode noise immunity?
cheers,
Jamie
I am making a 4 layer PCB and have multiple supply rails (12V, 5V, 3.3V,
2.5V, 1.2V). I have put all of the supplies on the internal layer2 as
polygons, some of the polygons look like large "C" shapes, is it better
to close these polygons to make them loops, or is it better to leave
them open? I think the loops will have lower inductance than open
branches, but not sure if they are recommended over using branches.
Also are loops better than branches for common mode noise immunity?
cheers,
Jamie