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energymiser · 10-13-2011, 08:51 AM

Hay there. As I am slowly wrapping my head around this project, questions are starting to come to mind. There has been discussion about shoot through and ways of stopping it. This seems to be a potentially expensive problem affecting the longevity of the IGBT's. From what I can tell the software dead time between high and low side switching is just part of the solution.

There was some discussion about the gate resistor values and their effect on something called "autocommutation" or shoot through by a sort of back door. Obviously something I don't really understand but was wondering if there was some sort of consensus as to the values of these gate resistors?

Have a great day.

10-13-2011, 08:51 AM	#592 (permalink)
energymiser EcoModding Lurker Join Date: May 2011 Location: Canada Posts: 12 Thanks: 4 Thanked 1 Time in 1 Post	IGBT life Hay there. As I am slowly wrapping my head around this project, questions are starting to come to mind. There has been discussion about shoot through and ways of stopping it. This seems to be a potentially expensive problem affecting the longevity of the IGBT's. From what I can tell the software dead time between high and low side switching is just part of the solution. There was some discussion about the gate resistor values and their effect on something called "autocommutation" or shoot through by a sort of back door. Obviously something I don't really understand but was wondering if there was some sort of consensus as to the values of these gate resistors? Have a great day.