| General > General Technical Chat |
| Return Path Routing — Why No One Does It, But You Really Should |
| (1/3) > >> |
| kmulier:
I've written this article about Return Path Routing yesterday. I'd like to share it here: https://embeetle.com/#blog/return-currents |
| tooki:
:-+ :-+ Kudos! That’s a really nicely explained, nicely illustrated summary of the problem, and a great solution. When I was doing my electronics technician apprenticeship, I had to do a number of high-frequency (4GHz) boards, and my boss introduced me to that aspect. (I had previously already figured out the loop area issue for low-frequency boards, and I came up with exactly the same solution you did! In addition to helping keep loop area small, it’s also a great way to ensure that high-current loads actually have a nice fat high-current return path, not just some sliver of a ground plane somewhere that is enough to satisfy continuity in the rules check, but not carry meaningful current.) |
| SiliconWizard:
Yes, the "trick" to explicitely route traces for what you would have just put a via in a gnd/power plane and called it a day is a good approach. People tend to be lazy with this especially with gnd pins. |
| Benta:
And perhaps abstain from using the thinnest, most anaemic track width available. That also helps. |
| kmulier:
So you're also a Return Current Guy @Tooki? Great! Welcome to the club. |
| Navigation |
| Message Index |
| Next page |