Strongly recommended · for some experience
What Every PCB Designer Should Know - Return Current Path (with Eric Bogatin)
Why people recommend it
Eric Bogatin explains with Robert Feranec where return current really flows and why split planes cause trouble; repeatedly recommended for anyone routing signals between layers.
Watch for: the return current section from 8:05
In their words
Watch all of this: [video] (and any other video where Robert interviews either Rick Hartley, or Eric Bogatin).
pgvoorhees on electronics.stackexchange.com, May 2023. CC BY-SA.
Here is another video that talks about return currents in greater detail: [video] - if you want you can skip to 8:05.
Frodyne on electronics.stackexchange.com, May 2021. CC BY-SA.
