Application Examples

EMCoS > Application Examples > Inverter PCB Modeling

  • Inverter PCB Modeling


    This document demonstrates modeling of Printed Circuit Boards (PCB) with Green Function approach using new powerful tools of EMCoS PCB VLab and EMC Studio. In conjunction, these two products make it easy to build a full simulation chain for various types of PCB models. This application note considers case of power Inverter PCB and its coupling to glass antenna. The obtained results are compared to laboratory measurements.

    Simulation Workflow

    Inverter PCB Simulation Workflow

    Measurement Setup

    Measurement setup contains single wire connected to Inverter PCB and glass antenna located at 28 cm from cable. Parameters components of setup are listed in table below.

    Inverter PCB Modeling Parameters

    Measurements of coupling from Inverter PCB were performed in EMCoS laboratory.

    Inverter PCB Measurement Setup


    The comparison of simulation and measurement results is shown below. There is good agreement between measurement and simulation results in considered frequency range.

    Inverter PCB S12 Magnitude

    Inverter PCB Input Impedance (Imaginary Part)

    Inverter PCB Input Impedance (Real Part)

    Current Distribution on Inverter PCB (77 MHz)

    Current Distribution on Inverter PCB (330 MHz)

    Current Distribution on Inverter PCB (410 MHz)

    Calculation Efficiency

    Calculations were performed on EMCoS cluster and on standalone PC. Computational time for one model calculation of 143 sample points in complete frequency range from 300 kHz to 500 MHz is shown in table.

    Inverter PCB Calculation Table


    According to performed investigation the main conclusions are:

    • Computational model of PCB can be effectively generated using EMCoS PCB VLab and EMC Studio
    • Simulation results of coupling from PCB are in good agreement with measurement results