Resistance, Inductance, and Capacitance (RLC) Parameters Optimization for Impedance Curve Fitting (Workshop)

In many product development or validation processes, engineers often encounter target impedance characteristics obtained from measurements or design specifications. These curves, typically representing frequency-dependent impedance behavior, include important features such as resonance peaks that must be accurately matched by circuit models.  

However, in many practical cases, the actual R, L, and C values of the circuit elements that produce the desired impedance response are unknown.

This workshop demonstrates how to parameterize R, L, and C values in an equivalent circuit model, and use Ansys optiSLang® process integration and design optimization software to optimize these parameters such that the simulated impedance curve matches a given target curve. 

The key objective of this workflow is to minimize the error between: 

•  The target impedance curve (e.g., from measurement or reference model). 
•  The simulated impedance curve generated from AEDT using parameterized R, L, and C. 

Learning Outcomes:

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

• Identify the optimal RLC values that yield accurate curve fitting - especially for impedance profiles with one or more resonance points. 

Prerequisites:

• Basic knowledge of power electronics circuits. 
• Familiarity with circuit analysis (e.g., Ansys Electronics Desktop (AEDT)™ electronics systems design platform Circuit, Ansys Simplorer, Ansys Twin Builder® simulation-based digital twin platform). 
• Understanding of Process Integration and Design Optimization. 
• Prior experience with Ansys Electronics Desktop (AEDT) software. 
• Prior experience with Ansys optiSLang software. 

Please note: These training materials were developed and tested in the 2025R1 release.