Method and device for increasing lifetime of power die or power module

Abstract

The present invention concerns a method and a system for increasing the lifetime of at least two power dies or power modules. The invention: —senses the temperature of the power dies or the power modules, —identifies, for each power die or power module, temperature cycles from the sensed temperatures, —determines, for each power die or power module, reliability parameters from the identified temperature cycles, —determines, for each power die or power module, reference temperatures, —subtracts, for each power die or power module, the sensed temperature of the power die or power module from the determined reference temperature of N the power die or power module, —adjusts the duration of the conducting time and/or the switching delay of at least one power die or power module according to the sign of the output of the subtraction.

Dependencies are inferred from the claim text.