Modeling Power Electronics PCB Parasitics with Ansys Q3D Solver in Ansys HFSS 3D Layout Software (Workshop)

This workshop focuses on the usage of the Q3D solver inside Ansys HFSS™ high-frequency electromagnetic simulation software 3D Layout, introduced as a Beta feature from the 2025R1 release. The workflow is specifically intended to the application on conducted emissions issues on Power Electronics PCBs where parasitic parameters such as inductance (L), resistance (R) or capacitance (C), play an important role in determining the switching behavior of the system. The solver thus overcomes the intrinsic limitations of usage of S-parameters based solver issues for such type of applications, where to accurately fit impedance, a high memory usage or extremely high accuracy of S-parameters calculations was necessary.

Learning Outcomes:

Following completion of this course, you will be able to:

• Simulate and analyze PCBs for power electronics applications
• Extract broadband SPICE models for power electronics PCBs to improve transient simulation accuracy.
• Account for parasitic inductance (L) and capacitance (C) in simulations to overcome S-parameter modeling limitations.

Prerequisites:

• Familiarity with electromagnetic simulation tools available in Ansys Electronics Desktop (AEDT)™ electronics systems design platform is recommended.

  This includes software such as Ansys HFSS 3D Layout software, Ansys Q3D Extractor solver and Circuit.

• Understanding of usage of S-parameters. Familiarity with spice models’ usage is also strongly recommended.

Please note: These training materials were developed and tested in the 2025R2 release.