# \#module

**URL:** https://forum.plexim.com/tag/module/91.md

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## [Principle of switch loss of probe module](https://forum.plexim.com/t/principle-of-switch-loss-of-probe-module/1377)

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**Author:** [@emma2](https://forum.plexim.com/u/emma2)\
**Replies:** 7\
**Last updated:** [July 17, 2026, 1:35pm UTC](https://forum.plexim.com/t/principle-of-switch-loss-of-probe-module/1377 "2026-07-17T13:35:24Z")

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Hello, I am a new user of plecs, and I have questions about probe’s calculation of switch loss. What is the principle of plecs probe module to calculate the switching loss of the device? According to the official websit…

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## [Which is the most accurate way to simulate/calculate the efficiency of power electronics?](https://forum.plexim.com/t/which-is-the-most-accurate-way-to-simulate-calculate-the-efficiency-of-power-electronics/255)

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**Author:** [@FabianH](https://forum.plexim.com/u/FabianH)\
**Replies:** 1\
**Last updated:** [January 25, 2018, 11:04am UTC](https://forum.plexim.com/t/which-is-the-most-accurate-way-to-simulate-calculate-the-efficiency-of-power-electronics/255 "2018-01-25T11:04:22Z")

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I’m trying to simulate the efficiency of an IGBT driven power module. With Pin=Pout+Ploss, the efficiency could be calculated as: eta=Pout/Pin eta=1-Ploss/PinAs you can see in the model attached, I tried both ways wi…