Abstract:This paper explains the actual reasons behind the improvement in terms of turn-off energy losses (Eoff) reduction, obtained using Kelvin pin (4-lead, 4L) MOSFETs instead of 3L ones. Eoff increases by increasing gate resistance and load, but the experimental results reveal that the increment is less in 4L than in 3L MOSFETs. Analysing the turn-off waveforms and adopting circuit analysis, the paper first proves that the common argument about the undesired effect of the parasitic source inductance in 3L MOSFETs i… Show more
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