# \#losses **URL:** https://forum.plexim.com/tag/losses/104.md [Latest](https://forum.plexim.com/latest.md) · [Categories](https://forum.plexim.com/categories.md) · [Tags](https://forum.plexim.com/tags.md) --- ## [The inner working of \`Magnetic Resistance\`](https://forum.plexim.com/t/the-inner-working-of-magnetic-resistance/2831)
**Author:** [@jbebic](https://forum.plexim.com/u/jbebic)\ **Replies:** 1\ **Last updated:** [February 5, 2026, 8:23pm UTC](https://forum.plexim.com/t/the-inner-working-of-magnetic-resistance/2831 "2026-02-05T20:23:56Z")
Hello all, I am interested in the inner workings of Magnetic Resistance component, trying to decide if I should use it in series or in parallel with Saturable Core. The help on Magnetic Resistance states: Magnetic res… --- ## [How are switching and conduction losses calculated by the model if the waveforms are ideal?](https://forum.plexim.com/t/how-are-switching-and-conduction-losses-calculated-by-the-model-if-the-waveforms-are-ideal/868)
**Author:** [@skadoosh237](https://forum.plexim.com/u/skadoosh237)\ **Replies:** 15\ **Last updated:** [July 23, 2025, 8:48pm UTC](https://forum.plexim.com/t/how-are-switching-and-conduction-losses-calculated-by-the-model-if-the-waveforms-are-ideal/868 "2025-07-23T20:48:10Z")
Hello everyone, How does PLECS thermal look-up models calculate losses? As the MOSFETs/IGBTs are switched with ideal waveforms, the effect of the output capacitance on the switching is not seen. Also the current wavefor… --- ## [Using the thermal description .xml in Matlab](https://forum.plexim.com/t/using-the-thermal-description-xml-in-matlab/1963)
**Author:** [@thoger](https://forum.plexim.com/u/thoger)\ **Replies:** 1\ **Last updated:** [March 27, 2025, 4:13am UTC](https://forum.plexim.com/t/using-the-thermal-description-xml-in-matlab/1963 "2025-03-27T04:13:21Z")
I am wondering if there is functionality to use the MOSFET thermal description in the Matlab environment. In particular, if there is a method to create/extract an interpolation function which takes the same inputs as the… --- ## [Effect of electrical parameters on conduction/switching losses calculated from thermal model](https://forum.plexim.com/t/effect-of-electrical-parameters-on-conduction-switching-losses-calculated-from-thermal-model/1390)
**Author:** [@SVerma](https://forum.plexim.com/u/SVerma)\ **Replies:** 3\ **Last updated:** [September 10, 2024, 11:13am UTC](https://forum.plexim.com/t/effect-of-electrical-parameters-on-conduction-switching-losses-calculated-from-thermal-model/1390 "2024-09-10T11:13:58Z")
I was calculating losses for a certain resonant converter converging to a nominal value of switching frequency of operation. I used thermal models available from the manufacturers (Wolfspeed, Dynex) and filled all the th… --- ## [How to calculate devices losses with a "Thermal Model"?](https://forum.plexim.com/t/how-to-calculate-devices-losses-with-a-thermal-model/1255)
**Author:** [@OuT](https://forum.plexim.com/u/OuT)\ **Replies:** 1\ **Last updated:** [July 18, 2023, 2:06pm UTC](https://forum.plexim.com/t/how-to-calculate-devices-losses-with-a-thermal-model/1255 "2023-07-18T14:06:58Z")
Hello. I am trying to simulate a total losses on IGBT with the open model “Buck Converter with Thermal Model”. I received a message “Error evaluating parameter ‘Thermal description’ in component buck\_converter\_with\_therm… --- ## [T-Type Inverter total losses](https://forum.plexim.com/t/t-type-inverter-total-losses/1253)
**Author:** [@Marianna](https://forum.plexim.com/u/Marianna)\ **Replies:** 4\ **Last updated:** [July 10, 2023, 4:46pm UTC](https://forum.plexim.com/t/t-type-inverter-total-losses/1253 "2023-07-10T16:46:19Z")
Hi! I’m doing a study on the three-phase T-Type Inverter, the model of which can be downloaded from PLEXIM. In particular, I have to focus on how the total losses (which can be seen already from the downloaded model) ch… --- ## [Calc. the efficiency of the inverter](https://forum.plexim.com/t/calc-the-efficiency-of-the-inverter/1217)
**Author:** [@M.Jesernitzki](https://forum.plexim.com/u/M.Jesernitzki)\ **Replies:** 4\ **Last updated:** [March 16, 2023, 3:37pm UTC](https://forum.plexim.com/t/calc-the-efficiency-of-the-inverter/1217 "2023-03-16T15:37:33Z")
Hello there, I tried to understand the given efficiency calculation which is explained in the model of the buck converter with thermalsheets. Now I try to calculate the efficiency of my full bridge inverter system. Whi… --- ## [Efficiency calculation: test conditions and final considerations](https://forum.plexim.com/t/efficiency-calculation-test-conditions-and-final-considerations/1071)
**Author:** [@nikilito](https://forum.plexim.com/u/nikilito)\ **Replies:** 2\ **Last updated:** [October 27, 2021, 4:07pm UTC](https://forum.plexim.com/t/efficiency-calculation-test-conditions-and-final-considerations/1071 "2021-10-27T16:07:13Z")
Hello everyone!My question is related to this thread.I didn’t quite understand whether the last comment (by Kris) actually confirms the assumptions made about calculating efficiency with a thermal model. Is it correct t… --- ## [Add losses to half-bridge vectorial block](https://forum.plexim.com/t/add-losses-to-half-bridge-vectorial-block/850)
**Author:** [@Felipe](https://forum.plexim.com/u/Felipe)\ **Replies:** 4\ **Last updated:** [September 3, 2020, 12:52pm UTC](https://forum.plexim.com/t/add-losses-to-half-bridge-vectorial-block/850 "2020-09-03T12:52:24Z")
Hi, Does anyone know if it is possible to add losses to the vectorial model of a half-bridge (I mean the one that model N HBSMs in series). Up to now, I have built my own model using “look under mask” but I do not know … --- ## [How are losses calculated when IGBT is operating at voltage higher than mentioned in datasheet](https://forum.plexim.com/t/how-are-losses-calculated-when-igbt-is-operating-at-voltage-higher-than-mentioned-in-datasheet/736)
**Author:** [@krishnapriya](https://forum.plexim.com/u/krishnapriya)\ **Replies:** 2\ **Last updated:** [January 23, 2020, 2:14pm UTC](https://forum.plexim.com/t/how-are-losses-calculated-when-igbt-is-operating-at-voltage-higher-than-mentioned-in-datasheet/736 "2020-01-23T14:14:18Z")
In the three phase grid connected inverter model for thermal modelling,the IGBT in chopper circuit sees a voltage of more than 700V. However in the datasheet included in the model the turn on losses are written only till… --- ## [Non Ideal MOSFET modelling](https://forum.plexim.com/t/non-ideal-mosfet-modelling/597)
**Author:** [@sanjayrajendran](https://forum.plexim.com/u/sanjayrajendran)\ **Replies:** 1\ **Last updated:** [March 4, 2019, 4:46am UTC](https://forum.plexim.com/t/non-ideal-mosfet-modelling/597 "2019-03-04T04:46:47Z")
Hello ! Myself Sanjay, I wanted to model the MOSFET switching losses, and true, there is a part in the library (MOSFET with limited di/dt) but if I’m not mistaken, the MOSFET turn off depends on the load current and isn… --- ## [Mosfet library plecs power losses](https://forum.plexim.com/t/mosfet-library-plecs-power-losses/599)
**Author:** [@Voyteck](https://forum.plexim.com/u/Voyteck)\ **Replies:** 1\ **Last updated:** [December 10, 2018, 8:32pm UTC](https://forum.plexim.com/t/mosfet-library-plecs-power-losses/599 "2018-12-10T20:32:46Z")
Hi I’m Wojtek, I’m writing thesis about power losses in DC/DC Buck-Boost converters. I’ve choosen Infineon transistor IPB017N08N5 and diode STMicroelectronics STPS16045TV. I cant find on the website of manufacturer li… --- ## [Losses using ideal components](https://forum.plexim.com/t/losses-using-ideal-components/562)
**Author:** [@Danilo\_Llano](https://forum.plexim.com/u/Danilo_Llano)\ **Replies:** 2\ **Last updated:** [November 15, 2018, 2:50am UTC](https://forum.plexim.com/t/losses-using-ideal-components/562 "2018-11-15T02:50:58Z")
Hello, I have been using PLECs to model a bidirectional interleaved converter, however I noticed some mismatch in the losses when I was using losses model for the devices, therefore I simplify the circuit to a single hal… --- ## [Switching losses - MOSFET, negative current](https://forum.plexim.com/t/switching-losses-mosfet-negative-current/464)
**Author:** [@Danilo\_Llano](https://forum.plexim.com/u/Danilo_Llano)\ **Replies:** 3\ **Last updated:** [August 17, 2018, 12:43pm UTC](https://forum.plexim.com/t/switching-losses-mosfet-negative-current/464 "2018-08-17T12:43:43Z")
Hi all, I am trying to simulate a bidirectional half bridge with MOSFETs. I have a thermal model for the losses, however depending on the duty cycle the current across one of the switches is always negative (using PLECS… --- ## [Switching losses in partially soft-switching inverter](https://forum.plexim.com/t/switching-losses-in-partially-soft-switching-inverter/445)
**Author:** [@bartbokmans](https://forum.plexim.com/u/bartbokmans)\ **Replies:** 3\ **Last updated:** [August 6, 2018, 11:16am UTC](https://forum.plexim.com/t/switching-losses-in-partially-soft-switching-inverter/445 "2018-08-06T11:16:59Z")
Hello, I am using PLECS to simulate the losses in an AC/DC inverter. During an 50Hz sine output period, the inverter is partially soft switching and a part hard switching dependent on the current ripple through the out… --- ## [Turn off Loss in LLC](https://forum.plexim.com/t/turn-off-loss-in-llc/378)
**Author:** [@chinaren007](https://forum.plexim.com/u/chinaren007)\ **Replies:** 6\ **Last updated:** [April 28, 2018, 11:26pm UTC](https://forum.plexim.com/t/turn-off-loss-in-llc/378 "2018-04-28T23:26:10Z")
Hi, I have a question regarding to the turn off loss using thermal model. When I run LLC at lower than resonant frequency, I have the problem of no turn off loss. (no turn on loss either but this is expected since it ha… --- ## [Negative turn-off losses of diode](https://forum.plexim.com/t/negative-turn-off-losses-of-diode/319)
**Author:** [@FabianH](https://forum.plexim.com/u/FabianH)\ **Replies:** 2\ **Last updated:** [April 11, 2018, 3:38am UTC](https://forum.plexim.com/t/negative-turn-off-losses-of-diode/319 "2018-04-11T03:38:41Z")
I’m trying to simulate the losses of the Infineon power module of which you can find the data sheet attached. According to the specs I made a thermal model for both the IGBT and the diode. When testing it in the demo mo…