PSpice Implementation and Simulation of a New Electro-Thermal Modeling for Estimating the Junction Temperature of Low Voltage Power MOSFET
| Authors | Toufik Smail1, Zohir Dibi1 , Douadi Bendib2 |
| Affiliations |
1Advanced Electronic Laboratory, Electronic Department, University BATNA 2, Algeria 2LDCCP Laboratory, Electronic Department, National Polytechnic School ENP, Algeria |
| Е-mail | smail.toufik77@gmail.com |
| Issue | Volume 10, Year 2018, Number 6 |
| Dates | Received 24 September 2018; revised manuscript received – 07 December 2018; published online 18 December 2018 |
| Citation | Toufik Smail, Zohir Dibi, Douadi Bendib, J. Nano- Electron. Phys. 10 No 6, 06004 (2018) |
| DOI | https://doi.org/10.21272/jnep.10(6).06004 |
| PACS Number(s) | 85.30.Tv |
| Keywords | Electro-thermal model, MOSFET (31) , Junction temperature (2) , Reliability (8) , Particle swarm optimization (2) , PSpice (5) , Buck converter (2) . |
| Annotation |
The estimation of the junction temperature (Tj) is very important factor for improving the reliability and efficiency of the power electronic converters. A new electro-thermal (ET) model of low voltage power MOSFET is described in this paper. The electro-thermal model allows fast estimation of the junction temperature, based on the transient thermal impedances (Zth) using the (RC) Foster thermal network model and total power losses. The parameters of the (RC) Foster thermal network model are extracted from the data provided by the manufacturer’s datasheet using particle swarm optimization (PSO) method. Moreover, a dc/dc Buck converter is also analyzed by simulation to evaluate the electro-thermal model. The simulation results indicate a good agreement between the proposed model and manufacturer’s data. Finally, the electro-thermal (ET) model simulation using this (RC) Foster thermal network model shows a reasonable accuracy for estimating the junction temperature in a Dc/Dc buck converter. |
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