Could someone please tell me if FloTHERM can simulate high-current trace power dissipation?
Flotherm support to simualte Joule Heating effect. You can do such simulation for a simple trace object.
Thanks for the information.
And is it possible to import PCB layout, then, lets say, define currents in traces and simulate it?
FloTHERM offers a direct import of copper traces for tools such as Boardstation but it's typically not used for Joule heating calculation.
The traces do not get discretly modeled as it would create a very complex model to solve.
The main application is for more discrete heat conduction calculation within a board.
For a Joule heating calculation, the trace needs to be modeled with its full shape.
To do so, you would need to import a 2D (dxf) or 3D (sat, step) drawing of the trace in FloTHERM.
I hope that helps.
Currently， Flotherm does'not support to simulate coupled IR-drop/thermal analysis to traces on PCB, Only Ansys's Siwave 4.0 and Icepak 12.0 support this type of simulation. User can import a full PCB into Siwave 4.0, assinging Voltage Sources and Current Sinks, t when ouput IR-drop data file, which User can import into Icepak 12.0.
I won't go into details here, but we are aware of the need to do this type of analysis and we're working on a solution.
Well, solution looks straight-forward: if I recall correctly HyperLynx 8 can already calculate voltage drops, thus calculating current dencity and forwarding this data to FloTHERM (and even better to FloTHERM.PCB) should be quite an easy task. If you do like this, please make a file for data transfer human readable (ASCII, XML)
It sounds good news to Mentor users. Hope Mentor's solution be the first which can do coupled IR-drop/Joule heating simulation. As We known, the trace's volume resistivity not be a static value, it will vary with temperture( Copper's TCR is so higher than other material). Currently, Ansys's Icepak 12can't dynamically link to Siwave 4.0, so it's not a real couple IR-drop/Jolule heating simulation.
Retrieving data ...