A TRM release is available: assign a resistor attribute (mOhm) to SMD parts to connect nets or copper geometries. Can be applied it with or without net list. The current goes through it and the voltage drop is adapted to the input value. I^2*R can be used for the heat and add to the Joule heat in traces. Also works in temperature-dependet mode.
- Simple example with resistors. Total resistance is 1 Ohm in each circuit.
- 3 half-bridges (Rdson=3 mOhm each, yellow) with shunt resistors (5 mOhm each, green) share the current.