kappa_am
Full Member level 6
Hi All,
I am dealing with designing a converter circuit. Before I chose IGBT with continuous current even more than nominal output current, but now pricing is critical and I need to keep it low. My question is about Repetitive peak collector current? what this current means? 1ms! Does not it depend on cooling system and thermal impedance? how long the switch must keep off after this period? In other word, how much can maximum duty cycle be?
Can a system be reliable if we design it using this current? regarding deteriorating
thermal filler , etc...
Thank you
I am dealing with designing a converter circuit. Before I chose IGBT with continuous current even more than nominal output current, but now pricing is critical and I need to keep it low. My question is about Repetitive peak collector current? what this current means? 1ms! Does not it depend on cooling system and thermal impedance? how long the switch must keep off after this period? In other word, how much can maximum duty cycle be?
Can a system be reliable if we design it using this current? regarding deteriorating
thermal filler , etc...
Thank you