Electro-thermal Simulation of a DC/DC Converter using a Relaxation Method

Author

Vellvehi, Miquel ; Jordá, Xavier ; Godignon, Philippe ; Millán, J.

Author_Institution

Centre Nacional de Microelectron., CSIC, Barcelona

fYear

2006

fDate

24-26 April 2006

Firstpage

1

Lastpage

7

Abstract

This paper presents a methodology for simulating the electro-thermal behaviour of a DC/DC converter. This technique is based on the coupling of computational fluid dynamics software (FLOTHERM) with an electrical circuit simulator (VHDL-AMS). This work is mainly focused in the description of the thermal component with special emphasis in the modelling of the active power devices (MOSFET and Schottky diode) included in the converter. Once these devices have been fully modelled, they are included in the DC/DC converter modelled as a double sided PCB including also some passive components. The simulations have been experimentally verified with the aid of infrared measurements

Keywords

DC-DC power convertors; MOSFET; Schottky diodes; circuit simulation; semiconductor device models; thermal analysis; DC-DC converter; FLOTHERM; MOSFET; Schottky diode; VHDL-AMS; active power devices; computational fluid dynamics software; double sided PCB; electrical circuit simulator; electro-thermal simulation; relaxation method; Circuit simulation; Computational modeling; Convergence; Coupling circuits; DC-DC power converters; MOSFET circuits; Power MOSFET; Power system modeling; Relaxation methods; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermal, Mechanical and Multiphysics Simulation and Experiments in Micro-Electronics and Micro-Systems, 2006. EuroSime 2006. 7th International Conference on

Conference_Location

Como

Print_ISBN

1-4244-0275-1

Type

conf

DOI

10.1109/ESIME.2006.1644018

Filename

1644018