Coupling component placement and parametrization - TLM based couplings

This section describes the TLM coupling component placement procedure. Some general rules and tips for successful partitioning are given. Placement of the coupling components is shown through some common use cases.

Correct placement and parametrization of coupling components is crucial for simulation stability and accuracy. There are few steps that can help in correct circuit partitioning:
  1. Check if there is a need for circuit partitioning
    • identify which components have to be in different sub circuits (different cores or devices)
  2. Place the coupling components
    • Find the best spot for the coupling
    • Determine the correct coupling parameter value

When a TLM coupling is used, the simulation step cannot be set to Auto option, therefore it has to be defined explicitly. It is recommended to use bilinear discretization method, but if TLM inductance (capacitance) is relatively small, trapezoidal discretization can be used. TLM coupling is based on bilinear discretization and is more robust than the Ideal Transformer coupling. TLM coupling in combination with bilinear (trapezoidal) discretization method guaranties stability in the most of practical use cases, so there is no need for additional stability analysis.

Is there a need for circuit partitioning

Recommended places for TLM coupling components

Circuit partitioning components