I look at switching times to get a rough idea of what it could do. If it takes the igbt 2uS to turn on and 2uS to turn off, the absolute max it could do is 250khz. Then you need to consider how much switching loss you can tolerate.
I look at switching times to get a rough idea of what it could do. If it takes the igbt 2uS to turn on and 2uS to turn off, the absolute max it could do is 250khz. Then you need to consider how much switching loss you can tolerate.
those numbers should be /50 to get to hard switched ratings. IGBT speed ratings are closely related to temperature rise due to rise and fall times and NOT to the delay times.
If you need fast switching a MOSFET is usually better. IGBTs are mostly used in slow speed, high voltage switching applications such as 60Hz inverters.
If you need fast switching a MOSFET is usually better. IGBTs are mostly used in slow speed, high voltage switching applications such as 60Hz inverters.
nice... there is a typo though: it should say 0.5C/W not 0.05C/W.
to a large extent frequency is limited by Tj in both FETs and IGBTs and not by operating speed. In IGBTs it is worse with the actual hard speed limit. In FETs you are limited by how hard you can drive them and parasitic resonances.