 ## Electronics

Topics relate to HFSS, Maxwell, SIwave, Icepak, Electronics Enterprise and more

• Timo
Subscriber

Hi,

I am a beginner in Ansys Maxwell and trying to simulate a specimen, which is subjected to alternating current and I would like to know the potential drop (electric voltage) between to points.

Does anyone have an idea how to get to this magnitude? Is there a known possibility to get the electric potential on a specific point or face in Ansys Maxwell?

Best regards

Timo

• Mark Solveson
Ansys Employee

Calculate (ohmic) voltage drop along a conductive path

Assume the existence of a conductive path (a previously defined open line (polyline) totally contained inside a conductor). To calculate the real and imaginary components of the ohmic voltage drop inside the conductor the following steps should be followed:

For the real part of the voltage:

Input > Quantity > J

Vector > Matl > Conductivity > Divide OK

General > Complex > Real

Input > Geometry > Line > (select the applicable line) OK

Vector > Tangent

Scalar >

Output > Eval

For the imaginary part of the voltage:

Input > Quantity > J

Vector > Matl > Conductivity > Divide OK

General > Complex > Imag

Input > Geometry > Line > (select the applicable line) OK

Vector > Tangent

Scalar >

Output > Eval

• Timo
Subscriber

I already tried this method to calculate the voltage drop along a conductive path. In my specific implementation there is an inhomogeneous electric field because of eddy current effects. I want to know the voltage drop from the bottom face of a cylinder to the top face of this cylinder and this inhomogeneous field makes it impossible to just calculate the voltage drop along a conductive path. Because every different path gives a different voltage drop. In my opinion I have to integrate over the whole volume of the cylinder and not just along one path.

Therefore I tried to think of another possibility to get to the voltage drop and my suggestion was to find the electric potential on both of the faces and substract them from another. Do you have an idea how to get to the electric potential on a specific point of my model?

Best regards! 