Guess:[4, 39.2, 46, 3.7]
Fit:[ 5.07780368 58.32486995 59.94808156 7.27511043]

InflPointLoc:763
LinVoltageSpace[InflPointLoc]:11.41 V
AzoozUfl:-34.68 V
DataIndex(20.00 V):-11.66 V

Guess:[6.3, -34.5, 21.3, 0.02]
Fit:[ 8.18277602 -34.38433342 17.53727452]
$I_{sat}=$8.18

Guess:[6.3, -34.5, 21.3, 0.02]
Fit:[ 2.77372515 -33.0599422 6.06401328 0.03672431]
$I_{sat}=$2.77