BEHAVIORAL-STUDY OF POWER MOSFET SWITCHIN G

In this paper, after a review of different works carried on power MOSF ET modeling, an interesting approach is presented. This approach is ba sed on the measurements of MOSFET external currents and voltages in a specified switching cell. Different phases are recognized during turn- on and turn-off and related systems of equations are defined to repres ent the MOSFET behavior. This model needs few parameters, which can be easily determined. Besides, a sensibility study is carried out, in or der to determine the model limitations. This study allows furthermore a good understanding of different factors affecting the switching.