diode transition time calculation using pspice orcad

how to calculate the diode trasition and storage times using orcad pspice tool.I want to see the graph between time vs current which is attached to this link
../imgqa/eboard/EM/EM-awvb5idy4wg.jpg

Hello,

You can use a current source and use the PULSE option, here you can specify the forward current, ris time and maximum reverse current.

To avoid that voltage goes to infinity, use voltage sources with ideal diode clamps.

Do not expect the curves as shown in the datasheets as the spice model is limited w.r.t. actual reverse recovery behavior.

YoWinRFP is correct. You can control the reverse recovery time by controlling TT parameter of diode model. In SPICE you would not get the initial rectangular portion of reverse recovery wave shape, you will get mostly the triangular type shape.

the "problem" with the spice diode model is that the stored charge depends on current and TT. How the charge actually is removed (decay of current versus time) during reverse recovery is not modelled. So you can't model "soft recovery behavior" or "snap-off" behavior as in a SRD. The standard diode model reverse behavior is more like a SRD then a soft recovery diode.