# \#mosfet **URL:** https://forum.plexim.com/tag/mosfet/273.md [Latest](https://forum.plexim.com/latest.md) · [Categories](https://forum.plexim.com/categories.md) · [Tags](https://forum.plexim.com/tags.md) --- ## [Mosfet coss modeling](https://forum.plexim.com/t/mosfet-coss-modeling/2761)
**Author:** [@mazers26](https://forum.plexim.com/u/mazers26)\ **Replies:** 3\ **Last updated:** [December 18, 2025, 8:31pm UTC](https://forum.plexim.com/t/mosfet-coss-modeling/2761 "2025-12-18T20:31:22Z")
Hello guys. I am working on PSFB converter and I want to be sure and see zero voltage transient(ZVT). I need to add a capatiance between drain and source in mosfet to ensure resonance with leakage inductance of primer wi… --- ## [MOSFET or IGBT turn-on or turn-off delays](https://forum.plexim.com/t/mosfet-or-igbt-turn-on-or-turn-off-delays/2731)
**Author:** [@wsaif1](https://forum.plexim.com/u/wsaif1)\ **Replies:** 5\ **Last updated:** [December 5, 2025, 2:48pm UTC](https://forum.plexim.com/t/mosfet-or-igbt-turn-on-or-turn-off-delays/2731 "2025-12-05T14:48:28Z")
IM trying to replicate a hybrid switch in the half bridge rectifier to drive a pmsm machine. i have separate circuits of a turn on and turn off delay working fine in isolation with a simple pulse generator input. but the… --- ## [Interpretation of conduction losses](https://forum.plexim.com/t/interpretation-of-conduction-losses/1243)
**Author:** [@BH\_85](https://forum.plexim.com/u/BH_85)\ **Replies:** 4\ **Last updated:** [June 15, 2023, 3:58am UTC](https://forum.plexim.com/t/interpretation-of-conduction-losses/1243 "2023-06-15T03:58:15Z")
Hi there, I’m pretty new with PLECS and wanna try to understand how conduction losses are calculated in a MOSFET. I’ve checked that it’s calculated as (in watts) as Vth \* Ids, where Vth is the MOSFET voltage drop and I… --- ## [Gate voltage in the power electronics modeling and simulation](https://forum.plexim.com/t/gate-voltage-in-the-power-electronics-modeling-and-simulation/1093)
**Author:** [@yuzou.edu](https://forum.plexim.com/u/yuzou.edu)\ **Replies:** 2\ **Last updated:** [February 18, 2022, 11:09am UTC](https://forum.plexim.com/t/gate-voltage-in-the-power-electronics-modeling-and-simulation/1093 "2022-02-18T11:09:01Z")
Hello, To a particular practical power MOSFET, the output characteristic (IDS vs VDS) is always VGS-dependent (from the datasheet). But in PLECS, how we really involve VGS in the simulation model? For example, in the g… --- ## [Doubts about MOSFET modelisation, body diode and Wolfspeed's thermal descriptions](https://forum.plexim.com/t/doubts-about-mosfet-modelisation-body-diode-and-wolfspeeds-thermal-descriptions/1045)
**Author:** [@nikilito](https://forum.plexim.com/u/nikilito)\ **Replies:** 2\ **Last updated:** [August 3, 2021, 4:59am UTC](https://forum.plexim.com/t/doubts-about-mosfet-modelisation-body-diode-and-wolfspeeds-thermal-descriptions/1045 "2021-08-03T04:59:26Z")
Hi everyone. I have three separate questions but linked each other. 1 - A Mosfet is a bidirectional device and from what I know, this happens because of the presence of an intrinsic diode (body diode) that exists due t… --- ## [Estimating MOSFET + diode conduction loss with separate thermal description for each device](https://forum.plexim.com/t/estimating-mosfet-diode-conduction-loss-with-separate-thermal-description-for-each-device/955)
**Author:** [@pchannegowda](https://forum.plexim.com/u/pchannegowda)\ **Replies:** 3\ **Last updated:** [February 19, 2021, 1:05pm UTC](https://forum.plexim.com/t/estimating-mosfet-diode-conduction-loss-with-separate-thermal-description-for-each-device/955 "2021-02-19T13:05:39Z")
Hello, I am trying to estimate conduction loss and switching loss of a MOSFET. MOSFET and the antiparallel Bodydiode both have separate thermal description files. Plecs currently has a bug where it ignores MOSFET gate c… --- ## [MOSFET Operation](https://forum.plexim.com/t/mosfet-operation/932)
**Author:** [@Mark](https://forum.plexim.com/u/Mark)\ **Replies:** 1\ **Last updated:** [January 4, 2021, 1:33pm UTC](https://forum.plexim.com/t/mosfet-operation/932 "2021-01-04T13:33:54Z")
Hello everyone, I have just started my journey with PlECS , so please forgive me if you find my question is so basic. Actually I’m trying to build a circuit for the single stage MOSFET Amplifier as showing in the link :… --- ## [Modeling of parasitic elements of Mosfet](https://forum.plexim.com/t/modeling-of-parasitic-elements-of-mosfet/927)
**Author:** [@febske](https://forum.plexim.com/u/febske)\ **Replies:** 1\ **Last updated:** [December 16, 2020, 8:06pm UTC](https://forum.plexim.com/t/modeling-of-parasitic-elements-of-mosfet/927 "2020-12-16T20:06:17Z")
Is there a way to model the parasitic capacitances between gate-drain and gate-source of a mosfet? As the gate is a signal input I tried to use a controlled voltage source which is turned on simultaneously with the gate.… --- ## [Spice module in plecs simulation](https://forum.plexim.com/t/spice-module-in-plecs-simulation/854)
**Author:** [@rajasaha](https://forum.plexim.com/u/rajasaha)\ **Replies:** 1\ **Last updated:** [September 8, 2020, 2:38pm UTC](https://forum.plexim.com/t/spice-module-in-plecs-simulation/854 "2020-09-08T14:38:21Z")
Hi, I want to use infineon MOSFET in Plecs simulation and want to have near exact performance of actual. Is it possible. Regards --- ## [Can V\*I be used to calculate switching losses of a Limited di/dt MOSFET?](https://forum.plexim.com/t/can-v-i-be-used-to-calculate-switching-losses-of-a-limited-di-dt-mosfet/688)
**Author:** [@purp](https://forum.plexim.com/u/purp)\ **Replies:** 1\ **Last updated:** [August 23, 2019, 2:28pm UTC](https://forum.plexim.com/t/can-v-i-be-used-to-calculate-switching-losses-of-a-limited-di-dt-mosfet/688 "2019-08-23T14:28:38Z")
Hi There, I am modelling a circuit using the limited di/dt MOSFET, which does not support thermal models. Can I use V\*I to calculate the switching and conduction losses of the MOSFET, as the PLECs user manual states “… --- ## [How to set the Rise time and Fall time of the MOSFET di/dt model](https://forum.plexim.com/t/how-to-set-the-rise-time-and-fall-time-of-the-mosfet-di-dt-model/690)
**Author:** [@Masamichi](https://forum.plexim.com/u/Masamichi)\ **Replies:** 1\ **Last updated:** [August 23, 2019, 2:10pm UTC](https://forum.plexim.com/t/how-to-set-the-rise-time-and-fall-time-of-the-mosfet-di-dt-model/690 "2019-08-23T14:10:55Z")
Hello. I’m trying to apply di/dt model (MOSFET) for the inverter simulation. So I checked the datasheet of the FET(PGA26E07BA) and Rise time and Fall time. Rise time (tr) : 5.6 ns, Fall time (tf) : 2.4 ns (under the … --- ## [Heat Sink Simulation Error](https://forum.plexim.com/t/heat-sink-simulation-error/657)
**Author:** [@yalbannaii](https://forum.plexim.com/u/yalbannaii)\ **Replies:** 3\ **Last updated:** [May 21, 2019, 1:38pm UTC](https://forum.plexim.com/t/heat-sink-simulation-error/657 "2019-05-21T13:38:52Z")
I am trying to calculate the switching and conduction losses of MOSFETs in my circuit. I used a thermal library model to add the power loss data to the switches. The circuit simulates fine without the heat sink. Once I a… --- ## [How to select theremal resistance Rth?](https://forum.plexim.com/t/how-to-select-theremal-resistance-rth/604)
**Author:** [@Voyteck](https://forum.plexim.com/u/Voyteck)\ **Replies:** 1\ **Last updated:** [March 4, 2019, 4:41am UTC](https://forum.plexim.com/t/how-to-select-theremal-resistance-rth/604 "2019-03-04T04:41:16Z")
Hi, I’m doing project with Plecs software and I need to select Rth thermal resitance for my heat sink(DC/DC converter). The transistor I selected is IPB017N08N5. Can anyone give me advices how to select thermal resistan… --- ## [Mosfet capacitance parasitics](https://forum.plexim.com/t/mosfet-capacitance-parasitics/628)
**Author:** [@victorpaduani](https://forum.plexim.com/u/victorpaduani)\ **Replies:** 1\ **Last updated:** [March 1, 2019, 4:22am UTC](https://forum.plexim.com/t/mosfet-capacitance-parasitics/628 "2019-03-01T04:22:45Z")
Hello everyone, I am currently modeling a power converter and I wanted to take into account as much as possible. I am using the MOSFET with Limited di/dt, but I also wanted to add the Cds (Coss - Crss) from the MOSFET. … --- ## [Switch-on behavior and switch-off behavior of Mosfet in Plecs](https://forum.plexim.com/t/switch-on-behavior-and-switch-off-behavior-of-mosfet-in-plecs/427)
**Author:** [@Dirac](https://forum.plexim.com/u/Dirac)\ **Replies:** 1\ **Last updated:** [May 4, 2018, 7:19pm UTC](https://forum.plexim.com/t/switch-on-behavior-and-switch-off-behavior-of-mosfet-in-plecs/427 "2018-05-04T19:19:59Z")
Hello everybody, Is it possible to simulate the turn-on/off behavior switching behavior of Mosfet in Plecs? If so, how do you do that? I would be very happy for an example. Thank you in advance Dirac