Ground Plane meaning? - Electronic Circuits Projects Diagrams Free

Burnt · 4th March 2008, 04:07 AM

Just wondering if someone can explain the meaning of Ground Plane in the following.

"Circuit layout is very important—a groundplane is needed to keep inductance low."

Thank You

dknguyen · 4th March 2008, 04:10 AM

A ground plane is a large area of nothing but computer connected to ground. It can range from jsut big enough to sit under an entire IC or to an entire layer on a PCB.

It's basically saying use a huge layer of copper and connect all the grounds to that, rather than running a ground trace all over the PCB. A large conductor has less inductance than a thing conductor.

I²R · 4th March 2008, 04:15 AM

A ground plane is a large area of copper which either partially or completely surrounds the circuit traces and lands and acts as the connecting path to ground for various components, minimizes stray inductance and provies some degree of shielding from stray EMF. See this image:

http://forum.4hv.org/attachments/Foto185.jpg

All that extra copper is the ground plane.

Burnt · 4th March 2008, 04:25 AM

Thank You, well explained & understood.

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4th March 2008, 04:07 AM	(permalink)
Burnt	Ground Plane meaning? Just wondering if someone can explain the meaning of Ground Plane in the following. "Circuit layout is very important—a groundplane is needed to keep inductance low." Thank You

4th March 2008, 04:10 AM	(permalink)
dknguyen	A ground plane is a large area of nothing but computer connected to ground. It can range from jsut big enough to sit under an entire IC or to an entire layer on a PCB. It's basically saying use a huge layer of copper and connect all the grounds to that, rather than running a ground trace all over the PCB. A large conductor has less inductance than a thing conductor.

4th March 2008, 04:15 AM	(permalink)
I²R	A ground plane is a large area of copper which either partially or completely surrounds the circuit traces and lands and acts as the connecting path to ground for various components, minimizes stray inductance and provies some degree of shielding from stray EMF. See this image: http://forum.4hv.org/attachments/Foto185.jpg All that extra copper is the ground plane.

4th March 2008, 04:25 AM	(permalink)
Burnt	Thank You, well explained & understood.