Thursday, May 2, 2013

Resistance Estimator

This program finds the resistance of copper PCB traces and shapes of given width, thickness, length. It will list out the Net Classes in the design and user can select the classes for which they wish to determine the Resistance.


Notes:
Electrical Equations:
Resistance = Resistivity*Length/Area*(1 + (Temp_Co*(Temp - 25))
Where, Area = Thickness*Width
A copper Thickness of 1 oz/ft^2 = 0.0035 cm
Copper Resistivity = 1.7E-6 ohm-cm
Copper Temp_Co = 3.9E-3 ohm/ohm/C