PDN Analyzer in Blender 

Creating a Laplace solver in geometry nodes to determine the current distribution in PCB copper planes! You can specify either Dirichlet or Neumann boundary conditions i.e. fixed voltage or fixed current. This will be useful in determining how much of an applied voltage reaches the load, and how much voltage needs to be generated to compensate.
A good design example to test this solver is this 2kW multi-phase bidirectional DC/DC converter from TI which can supply up to 166A of load current at 12V across four phases. Because of these high currents, the voltage directly at the inputs and outputs of each phase will be different than the terminal voltages. You can see in this video that the applied 36V at the input terminal drops by up to 0.15V when it reaches the furthest DC/DC converter phase, and for the 12V output the furthest DC/DC converter will have to generate 12.33V to compensate for the voltage drop across the PCB plane. Although these voltage variations might not be too high, it is the power loss that is high and is up to 27W in total. That is why copper bus bars are then used to minimise these resistive losses.
I’ve also added voltage probes that always face the camera and compared the results with Elmer, this solver will be added soon to Electromag Nodes!
"ElectroMag Nodes" are set Geometry Node groups for solving and simulating electromagnetic equations
You will be able design inductors, coils and magnetics and visualise their magnetic fields and calculate their inductance. You will also be able study electrostatics, visualise electrics fields of objects, calculate potentials, surface charge density and capacitance.
These set of nodes will be useful especially for students to better understand electromagnetics, which can be a difficult topic to study and learn. It will also be useful for electrical engineers who design circuit boards, and components.
Download ElectroMag Nodes from:
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