# \#loss **URL:** https://forum.plexim.com/tag/loss/94.md [Latest](https://forum.plexim.com/latest.md) · [Categories](https://forum.plexim.com/categories.md) · [Tags](https://forum.plexim.com/tags.md) --- ## [Principle of switch loss of probe module](https://forum.plexim.com/t/principle-of-switch-loss-of-probe-module/1377)
**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")
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… --- ## [Significant Discrepancy in SiC MOSFET Loss Calculation: Custom Script vs PLECS Lookup Table (C3M0021120K / C3M0015065K)](https://forum.plexim.com/t/significant-discrepancy-in-sic-mosfet-loss-calculation-custom-script-vs-plecs-lookup-table-c3m0021120k-c3m0015065k/2275)
**Author:** [@Yuhao](https://forum.plexim.com/u/Yuhao)\ **Replies:** 7\ **Last updated:** [July 11, 2025, 6:42pm UTC](https://forum.plexim.com/t/significant-discrepancy-in-sic-mosfet-loss-calculation-custom-script-vs-plecs-lookup-table-c3m0021120k-c3m0015065k/2275 "2025-07-11T18:42:19Z")
Hello, I’m developing a custom power loss calculation script for rapid topology evaluation under varying load conditions. To validate its accuracy, I compared its results against PLECS thermal simulations based on a T-t… --- ## [Negative turn-off loss -- The relevant current is mentioned wrong in the error](https://forum.plexim.com/t/negative-turn-off-loss-the-relevant-current-is-mentioned-wrong-in-the-error/1266)
**Author:** [@smohtat](https://forum.plexim.com/u/smohtat)\ **Replies:** 4\ **Last updated:** [September 14, 2023, 8:42am UTC](https://forum.plexim.com/t/negative-turn-off-loss-the-relevant-current-is-mentioned-wrong-in-the-error/1266 "2023-09-14T08:42:49Z")
Hi, I am trying to find switching losses of a Modular Multilevel Converter (MMC) with PLECS Blockset. My SubModules (SM) are half-bridge (chopper cell) and there are 4 SMs in each arm of the MMC. As a first step, I am t… --- ## [Negative conduction loss due to high temperatures](https://forum.plexim.com/t/negative-conduction-loss-due-to-high-temperatures/1190)
**Author:** [@Ulca](https://forum.plexim.com/u/Ulca)\ **Replies:** 2\ **Last updated:** [December 19, 2022, 3:44am UTC](https://forum.plexim.com/t/negative-conduction-loss-due-to-high-temperatures/1190 "2022-12-19T03:44:32Z")
Hi Kris, I have a similar problem, too. But my current value in the error is normal. However, junction temperature is way higher. But I do not believe that the error is in the heatsink. I compared my xml file with a prov… --- ## [Negative Loss Valiue for thermal model of the diode](https://forum.plexim.com/t/negative-loss-valiue-for-thermal-model-of-the-diode/947)
**Author:** [@YuJin](https://forum.plexim.com/u/YuJin)\ **Replies:** 4\ **Last updated:** [December 12, 2022, 12:09pm UTC](https://forum.plexim.com/t/negative-loss-valiue-for-thermal-model-of-the-diode/947 "2022-12-12T12:09:24Z")
Attached is the simulation model for the single-phase multilevel converter, While I was trying to simulate the thermal performance of the switching devices. However, whenever I start the simulation, it keeps telling me … --- ## [Interpretation of the thermal model - conduction loss graph](https://forum.plexim.com/t/interpretation-of-the-thermal-model-conduction-loss-graph/1104)
**Author:** [@yuzou.edu](https://forum.plexim.com/u/yuzou.edu)\ **Replies:** 6\ **Last updated:** [March 28, 2022, 11:40am UTC](https://forum.plexim.com/t/interpretation-of-the-thermal-model-conduction-loss-graph/1104 "2022-03-28T11:40:21Z")
Hello, After adding the manufacture thermal model in the MOSFET, I found the “Turn-on loss” and “Turn-off loss” tabs show graphs of E vs. V, I. While they make perfect sense, the “Conduction loss” tab shows the graph be… --- ## [At t=0.0154 Negative loss values for component... Should I set voltage Vce in negative value for turn off loss of diode?](https://forum.plexim.com/t/at-t-0-0154-negative-loss-values-for-component-should-i-set-voltage-vce-in-negative-value-for-turn-off-loss-of-diode/751)
**Author:** [@Razon](https://forum.plexim.com/u/Razon)\ **Replies:** 2\ **Last updated:** [March 12, 2020, 1:35pm UTC](https://forum.plexim.com/t/at-t-0-0154-negative-loss-values-for-component-should-i-set-voltage-vce-in-negative-value-for-turn-off-loss-of-diode/751 "2020-03-12T13:35:00Z")