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Polar , 03-20-2022, 09:28 AM

Hi,

@@phils-lab I noticed that on the two layer board Single to Split Rail DC Power Supply Design you did a ground pour over the first layer, but in the Breakout board you didn't. Why is that?

phils-lab , 03-28-2022, 03:48 AM

Hi there,

Which breakout board are you referring to?

For two-layer boards, my aim is to keep a solid ground plane on the bottom layer with signal + power on the top. If there aren't too many disconnected islands, I'll also pour copper on the top (GND fill). However, I don't generally see much benefit from doing so.

For four or more layer boards, I'll just use internal layer ground fills with little-to-no fills on outer layers.

Best,
Phil

Polar , 04-02-2022, 12:24 PM

I was referring at your YouTube video Single to Split Rail DC Power Supply Design, on that video, I believe you pour copper (GND Fill) on top of the first layer. Is that a recommended practice?