didt_dvdt

Legacy Implementation

di/dt and dv/dt do not follow a standard. They are both calculated during the turn-on and turn-off transition and show the maximum value during these transitions. The algorithms are independent from semiconductor material or device topology.

• First a smoothing filter with smoothing points = 40 is applied to get more consistent results of the input channel.
• This smoothed input is differentiated to get the slopes.
• An additional smoothing (also with smoothing points = 40) of the slopes is applied.
• The maximum/minimum values of the smoothed slopes are the values for di/dt and dv/dt.