Using ground pour to connect to the GND track

[Frikkie]

sdya011

I am still busy learning what and what not to do but that only comes with experience.

According what I have gathered if the PCB overall current is less than 500mA you can use the ground pour to connect to the GND track.
If it is over that then the ground pour area must be connected to one pin that is connected to ground. The circuit is a basic digital circuit. Micro and switches. No analog involved.

I just want to know if this is correct 8) or not :evil: ?

Thank you all in advance.

 

[akouz]

Re: Ground plane

According what I have gathered if the PCB overall current is less than 500mA you can use the ground pour to connect to the GND track.
If it is over that then the ground pour area must be connected to one pin that is connected to ground.

I just want to know if this is correct 8) or not :evil: ?

No, this is not correct, there are no such rules
There is nothing "magical" about 500 mA current.

 

[Frikkie]

Re: Ground plane

akouz

Thank you for the reply. Do you know where I could find out
more about the groud pour rules then. Or can I just connect
the pour to the GND track.

 

[akouz]

Re: Ground plane

Do you know where I could find out
more about the groud pour rules then. Or can I just connect
the pour to the GND track.

It depends on your application.

If your bouard does not generate too much noise and it is not sensitive to external noise, then you can pour copper any way you wish. In that case you save etching solution and therfore help environment.

If ther are noise problems then you need observe some rules. You might wish to read some appnotes to get a feeling for that, such as:
**broken link removed**
**broken link removed**
http://www.analog.com/UploadedFiles/Associated_Docs/27648933Section9.pdf
...etc

 

[itaifrenkel]

Re: Ground plane

For high speed boards see:

**broken link removed**