FEM Resistor in Circuit

Application ID: 109011


HowTo: Using the EC External I-Terminal

The External Couplings in the CIR interface has two flavors that can be used. External I vs. U and External I-terminal. The former has two nodes (it represents a differential external voltage measurement) and when coupling to an EC Terminal feature, you need to have a local ground in the EC model. The latter is single node and thus you need two instants of it and two Terminal features in the EC interface. In the former case, there are two different (shifted) electric potentials (one in CIR and one in EC). In the latter case, there is one consistent electric potential definition in the model and just one ground reference. Voltage drops and currents are of course the same in both models. The attached models illustrate the concepts.

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