A New Electro-Thermal Modeling of Low Voltage Power MOSFET with Junction Tempera-ture Dependent Foster (RC) Thermal Network
| Authors | Smail Toufik, Dibi Zohir |
| Affiliations |
Advanced Electronic Laboratory, Electronic Department, University BATNA 2, Algeria |
| Е-mail | Smail.toufik77@gmail.com, Zohirdidi@yahoo.fr |
| Issue | Volume 10, Year 2018, Number 4 |
| Dates | Received 15 April 2018; published online 25 August 2018 |
| Citation | Smail Toufik, Dibi Zohir, J. Nano- Electron. Phys. 10 No 4, 04017 (2018) |
| DOI | http://dx.doi.org/10.21272/jnep.10(4).04017 |
| PACS Number(s) | 85.30.Tv |
| Keywords | Electro-thermal (ET) model, Junction temperature (Tj), Reliability (8) , MOSFET (31) , Genetic Algorithm (GA), PSpice (5) . |
| Annotation |
Thermal loading of MOSFET (Metal-Oxide-Semiconductor- Field-Effect-Transistor) model is a very important factor for the reliability of power electronics systems. Thus, the junction temperature must be accurately estimated. This paper presents a new electro-thermal (ET) model for low voltage Power MOSFET rated at (30 V/13 A) by PSpice simulator to estimate junction temperature (Tj) and power loss. The (ET) model is composed of electrical network model and (RC) thermal network model. The parameters of the (RC) thermal network model are extracted from datasheet using genetic algorithms (GA) method for computation of the transient thermal impedance (Zth(j – c)). The propose model reflects superior performance in terms of flexibility and accuracy. The results obtained indicate a good matching between proposed model and manufacturer’s data. |
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