14 Thermal Calculations using LTSpice

Electronics Thermal Heatsink Design Tutorial
Thermal Calculations using LTSpice
Basics of Power Electronics - Walid Issa
Part 1: • 12 Power Elecronics: T...
Part 2: • 13 Power Elecronics: T...
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[@timothyreilly6742]

Very helpful getting me started on some analysis. Thank you. TI app note SLVA158 has some additional good information. It lists the thermal capacitance of the D2PAK, DPAK, SO-8 AND SOT-223 in Table 4, as well as the Junction to ambient thermal resistance which could be added from the die to ambient. The thermal capacitance of the copper slug, would go right across R4 and R5 in your drawing, where the thermal capacitance values appear to translate to Farads of capacitance based on the tau values listed in SLVA158 Table 4. Best Regards!!!

[@isacdaimary9908]

Thank You... Keep up the great work

[@pieters286]

Thanks, very informative.

[@kpbpro]

Not very obvious, but the behavioral current source, bi2 has to be used. To be able to use the formula.

[@MemesMoviesMore]

it would be better if mentioned

[@rajeshjaganathan224]

Thanks bro, After trying so much, i came here to comment section with the hope of finding the solution. you gave it.

[@kamtasingh6330]

WOW, wonderful...........could you please also add the texts under description! Thanks

[@xinzhiliu941]

I tried using an external 3rd party MOSFET model(SiC, GaN) for the same testing, and the dependent current source could not be used somehow...

[@ece2471]

Great Great

[@sassi7190]

رائع

[@ancientmoon4303]

Great, but I cannot see the screen clear (in detail). Could you upload a clear version. Many thanks.

[@sachinugane5741]

Hi!!! I am unable to give the power dissipation formula to the thermal model. Can you please help me?

[@valeriorossi2610]

Please use "Arbitrary behavioral current source" called "bi". It allows you to insert functions

[@youneseya3268]

Hello Mr ISSA . I have to do a thermal simulation for a 650 V to 900 V DC-DC converter with 25 kW power rating. I have the model but i need your hepl please to do the simulation

[@hammasouissi4110]

👍👍👍

[@prathameshdeshpande4720]

How to add heat sink ??

[@youneseya3268]

Hello Mr ISSA . I have to do a thermal simulation for a 650 V to 900 V DC-DC converter with 25 kW power rating. I have the model but i need your hepl please to do the simulation