# \#thermal **URL:** https://forum.plexim.com/tag/thermal/23.md [Latest](https://forum.plexim.com/latest.md) · [Categories](https://forum.plexim.com/categories.md) · [Tags](https://forum.plexim.com/tags.md) --- ## [Assistance with Modified Thermal XML Model for Parallel IGBT Modules](https://forum.plexim.com/t/assistance-with-modified-thermal-xml-model-for-parallel-igbt-modules/3205)
**Author:** [@MilanVdW](https://forum.plexim.com/u/MilanVdW)\ **Replies:** 3\ **Last updated:** [July 19, 2026, 10:57pm UTC](https://forum.plexim.com/t/assistance-with-modified-thermal-xml-model-for-parallel-igbt-modules/3205 "2026-07-19T22:57:55Z")
Dear PLECS Support Team I have developed an AFE converter model that, in reality, uses the 6 Infineon FS450R17OE4 IGBT module. Due to the high current, each switching position consists of six identical IGBT modules conn… --- ## [Question Regarding the FS450R17OE4 Thermal Model](https://forum.plexim.com/t/question-regarding-the-fs450r17oe4-thermal-model/3200)
**Author:** [@MilanVdW](https://forum.plexim.com/u/MilanVdW)\ **Replies:** 1\ **Last updated:** [July 6, 2026, 2:21pm UTC](https://forum.plexim.com/t/question-regarding-the-fs450r17oe4-thermal-model/3200 "2026-07-06T14:21:59Z")
Dear PLECS Support Team I would like to use the thermal model of the FS450R17OE4 module in my PLECS simulation. My question concerns the datasheet characteristics. Since the FS450R17OE4 contains six IGBT switches, do t… --- ## [Width Parameter in Heat Sink Component](https://forum.plexim.com/t/width-parameter-in-heat-sink-component/2714)
**Author:** [@Johannes\_Bruderer](https://forum.plexim.com/u/Johannes_Bruderer)\ **Replies:** 0\ **Last updated:** [November 21, 2025, 3:12pm UTC](https://forum.plexim.com/t/width-parameter-in-heat-sink-component/2714 "2025-11-21T15:12:03Z")
What is the purpose of the Width parameter of the Heat Sink component? The Width parameter defines how many heat sink instances are created when the heat sink is placed on top of a vectorized component. In the examp… --- ## [How can I set thermal network between two other discrete MOSFET?](https://forum.plexim.com/t/how-can-i-set-thermal-network-between-two-other-discrete-mosfet/1059)
**Author:** [@choeoliv](https://forum.plexim.com/u/choeoliv)\ **Replies:** 4\ **Last updated:** [October 20, 2025, 5:25am UTC](https://forum.plexim.com/t/how-can-i-set-thermal-network-between-two-other-discrete-mosfet/1059 "2025-10-20T05:25:18Z")
Hi How can I set a thermal impedance between two other MOSFET? for example, when MOSFET is connected with other MOSFET as a half bridge form, heat from low side MOSFET could affect to high side MOSFET and vice versa. p… --- ## [Thermal modeling of the FETs and Anti-Parallel Diodes](https://forum.plexim.com/t/thermal-modeling-of-the-fets-and-anti-parallel-diodes/2367)
**Author:** [@kalana](https://forum.plexim.com/u/kalana)\ **Replies:** 10\ **Last updated:** [July 24, 2025, 8:29pm UTC](https://forum.plexim.com/t/thermal-modeling-of-the-fets-and-anti-parallel-diodes/2367 "2025-07-24T20:29:20Z")
Hi, I am designing a DAB at 100kHZ and Vo~400V, I am looking at the conduction and switching losses of the wolf speed C3M0025065L FETs. I used the thermal curve fitting to import the the turn-on and turn-off character… --- ## [Question about thermal simulation](https://forum.plexim.com/t/question-about-thermal-simulation/1395)
**Author:** [@oming0731](https://forum.plexim.com/u/oming0731)\ **Replies:** 1\ **Last updated:** [September 12, 2024, 11:55am UTC](https://forum.plexim.com/t/question-about-thermal-simulation/1395 "2024-09-12T11:55:18Z")
Dear PLECS, I 'd like to about single phase inverter thermal simulation. My efficiency calculation is Output power/(Output power + Switching losses)\*100 Here, Switching losses are conduction losses and switching loss… --- ## [Selection of thermal resistance (housing to radiator and radiator to environment) for half-bridge module (CAS480M12HM3)](https://forum.plexim.com/t/selection-of-thermal-resistance-housing-to-radiator-and-radiator-to-environment-for-half-bridge-module-cas480m12hm3/1376)
**Author:** [@emma2](https://forum.plexim.com/u/emma2)\ **Replies:** 1\ **Last updated:** [July 9, 2024, 6:34pm UTC](https://forum.plexim.com/t/selection-of-thermal-resistance-housing-to-radiator-and-radiator-to-environment-for-half-bridge-module-cas480m12hm3/1376 "2024-07-09T18:34:11Z")
Hello I am a novice of plecs. I have some problems when building thermal simulation. I hope to get your reply. The first diagram shows the constructed 3L-ANPC circuit diagram, marking the thermal resistance of the shel… --- ## [Error in the thermal simulation model](https://forum.plexim.com/t/error-in-the-thermal-simulation-model/1261)
**Author:** [@AJIT\_KUMAR\_UPADHIYA](https://forum.plexim.com/u/AJIT_KUMAR_UPADHIYA)\ **Replies:** 2\ **Last updated:** [August 7, 2023, 10:26am UTC](https://forum.plexim.com/t/error-in-the-thermal-simulation-model/1261 "2023-08-07T10:26:47Z")
I am getting this error while using the thermal simulation model of my inverter circuit. The device current (-1.13687e-13) is less than the lower limit specified in the thermal description (0).You can turn this error in… --- ## [Series Connection of thermal networks](https://forum.plexim.com/t/series-connection-of-thermal-networks/1258)
**Author:** [@BH\_85](https://forum.plexim.com/u/BH_85)\ **Replies:** 2\ **Last updated:** [July 27, 2023, 4:16am UTC](https://forum.plexim.com/t/series-connection-of-thermal-networks/1258 "2023-07-27T04:16:04Z")
Hi, I’m trying to understand how 2 “Thermal Chains” connected in series are resolved First, in red, is a thermal chain (Cauer type) and its equivalent network in Foster. Second part, in purple, is another thermal chain… --- ## [Thermal Package Description :Error evaluating parameter 'Thermal description'](https://forum.plexim.com/t/thermal-package-description-error-evaluating-parameter-thermal-description/1245)
**Author:** [@mr\_naidu](https://forum.plexim.com/u/mr_naidu)\ **Replies:** 4\ **Last updated:** [June 15, 2023, 12:34am UTC](https://forum.plexim.com/t/thermal-package-description-error-evaluating-parameter-thermal-description/1245 "2023-06-15T00:34:28Z")
Hii, I am trying to model the half bridge power module using discrete IGBT and Diode. While implementing thermal package impedance , i am getting the error in thermal description evaluation. I have attached the error an… --- ## [Multiple heat sinks for cross-coupling modeling](https://forum.plexim.com/t/multiple-heat-sinks-for-cross-coupling-modeling/1214)
**Author:** [@Pablo](https://forum.plexim.com/u/Pablo)\ **Replies:** 2\ **Last updated:** [March 17, 2023, 6:51am UTC](https://forum.plexim.com/t/multiple-heat-sinks-for-cross-coupling-modeling/1214 "2023-03-17T06:51:08Z")
Hello,I want to model thermal coupling between all IGBTs and diodes in a 3-phase inverter, similarly to what is answered to this question (How can I set thermal network between two other discrete MOSFET? - thermal-model … --- ## [How to enter thermal impedance of IGBT and Diode separately in the thermal model of 'IGBT with Diode'?](https://forum.plexim.com/t/how-to-enter-thermal-impedance-of-igbt-and-diode-separately-in-the-thermal-model-of-igbt-with-diode/661)
**Author:** [@yugalgupta96](https://forum.plexim.com/u/yugalgupta96)\ **Replies:** 3\ **Last updated:** [April 1, 2020, 2:03am UTC](https://forum.plexim.com/t/how-to-enter-thermal-impedance-of-igbt-and-diode-separately-in-the-thermal-model-of-igbt-with-diode/661 "2020-04-01T02:03:21Z")
Thermal impedance of junction to case is different for IGBT and Diode. To define thermal model of ‘IGBT with Diode’, How can we enter thermal impedance separately for IGBT and Diode ? For your reference, the image of th… --- ## [Thermal description of diode](https://forum.plexim.com/t/thermal-description-of-diode/756)
**Author:** [@christi](https://forum.plexim.com/u/christi)\ **Replies:** 1\ **Last updated:** [March 23, 2020, 2:05pm UTC](https://forum.plexim.com/t/thermal-description-of-diode/756 "2020-03-23T14:05:55Z")
hello guy, how can i do the thermal description of the diode with datasheets? because the diodee on the Library didn t give me this opportunity to parameter the turnon lossses , conduction losses. did someone hier did so… --- ## [How to set the parameter of the thermal resistance Rth(or Zth) between case and heat sink?](https://forum.plexim.com/t/how-to-set-the-parameter-of-the-thermal-resistance-rth-or-zth-between-case-and-heat-sink/681)
**Author:** [@Sara.Z](https://forum.plexim.com/u/Sara.Z)\ **Replies:** 1\ **Last updated:** [August 12, 2019, 1:21pm UTC](https://forum.plexim.com/t/how-to-set-the-parameter-of-the-thermal-resistance-rth-or-zth-between-case-and-heat-sink/681 "2019-08-12T13:21:29Z")
Hello, I am trying to simulate the temperature behaviour of a 2-level converter circuit. The IGBT module I used consists of a halb bridge and three of the modules are on one heat-sink. I can set the thermal impedance f… --- ## [Can you make the on-resistance of a switch dependent on the lookup table from its conduction losses?](https://forum.plexim.com/t/can-you-make-the-on-resistance-of-a-switch-dependent-on-the-lookup-table-from-its-conduction-losses/564)
**Author:** [@WielandVDS](https://forum.plexim.com/u/WielandVDS)\ **Replies:** 1\ **Last updated:** [October 31, 2018, 8:00pm UTC](https://forum.plexim.com/t/can-you-make-the-on-resistance-of-a-switch-dependent-on-the-lookup-table-from-its-conduction-losses/564 "2018-10-31T20:00:31Z")
Hello, I am trying to create a feedback loop between the lookup table of my MOSFET’s conduction losses and the electrical on-resistance Ron. We know that Ron = Von / Ion (linear approx.) and that both of these variables…