Modeling of an incandescent bulb

I would like to model an incandescent bulb in CircuitLab. The existing "light bulb" model just provides a parameter entry for resistance. This does not take into account the fact that the bulbs resistance changes as a function of the temperature of the tungsten filament (which changes with current flowing through it).

I found some LTSPICE models on a forum ( that model the resistance as a function of temperature of a tungsten filament. As far as I can tell, it is not possible to import a SPICE model for any device other than:

BJTs Diodes MOSFETs Op-Amps Zener Diodes Light-Emitting Diodes (LEDs) JFETs

Does anyone know of any way to accomplish the goal of modeling the electric bulb properly?

by RobMohr
June 07, 2018

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