Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

PCB Trace width calculator: Average current vs RMS current

Status
Not open for further replies.
D

david.cano90

Junior Member level 3
Joined
Jul 23, 2018
Messages
26
Helped
1
Reputation
2
Reaction score
1
Trophy points
3
Activity points
243
Hello everyone,

I would like to calculate the trace width of a net, but I am not sure what value should I give in this calculator: https://www.4pcb.com/trace-width-calculator.html.
Should I give the current RMS value or its average value?

As always, thank you for reading.

Best regards,

David.
 

Hi ,

The basic problem is:
The current will cause heat, too much heat will melt the trace.

Now Imagine:
There is purely AC current. Do you expect it to cause heat?

If your answer is: Yes, then you already know that "average current" is not the correct value, because it is zero.
(With AC all negative values cancel out the positive values, thus the average current is zero)

Klaus
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top