what is di/dt and dv/dt?

Can anyone explain what is di/dt and dv/dt?. In terms of MOSFET's, IGBT's and BJT's.

di/dt is the rate of change of current and dv/dt is rate of change of voltage.

Mike.

Pommie said:

di/dt is the rate of change of current and dv/dt is rate of change of voltage.

Mike.

Click to expand...

With respect to time, of course.

Those terms are not often used with respect to MOSFETs, IGBTs, or BJTs. dv/dt is of concern with SCRs or TRIACs since a value for that which is too high applied to the cathode-anode connection may cause inadvertent triggering of the device. They usually have a limit for that parameter listed in the data sheet.

Thanks! Pommie and Crutschow.