The relationship between tracks width, current and signal frequency

[vahidkh6222]

hi all,
i have a question about design of pcb layout of my...
is there any direct relationship between the current, the frequency of signel and the width of tracks?
if i have line that should hold 4mAs of current, how much is the width of track of this wire?!!
thanks in advance

 

[IanP]

Re: tracks width

Try this link:
http://www.geocities.com/CapeCanaveral/Lab/9643/TraceWidth.htm

Regards,
IanP

 

[ahmad_abdulghany]

Re: tracks width

what does 1 mils equal in S.I. units?

Thanks
Ahmad,

 

[IanP]

Re: tracks width

1mils=miliinchs =(1/1000)*25.4 mm=25.4µm

Regards,
IanP

 

[electron_boy]

Re: tracks width

hi
ur skin depth depends on the frequency of the signal. skin depth matters the loss and thus the trace width has to be adjusted accordingly....and it is common sense that more current flows through a thicker trace due to R= ρl/a

 

[satya_vijayawada]

Re: tracks width

www.geocities.com/CapeCanaveral/Lab/9643/TraceWidth.htm

Above link not open???

 

[g579]

Re: tracks width

It is open for everybody. Just tried and works.