apply a earth signal ....

[narbeh_rob]

hi every body
does any body know , how can i apply a earth on digital circuit ?
shoud i directly connect it to Ground Panel on Pcb or there is a special circuit
to do this ?

 

[pawanbahl]

its never a good idea to "earth" the ground. why do you want to doi it? what are you trying to achieve thorugh this?

Usually it is better to "earth" through a Y-class capacitor, but a lot depends on your application. send me your reason at bahl@terronmicrosystems.com. i will let you know.

 

[narbeh_rob]

i want to this in the power supply part . to reduce the EMI and other noise.

 

[IanP]

You may connect digital ground directly with the EARTH GROUND - I don't see anything wrong with that, after all all computers are wired that way, but I would suggest another solution: A High Current Safety Loop Breaker Circuit .. see picture below ..

Regards,
IanP