om 20V, north of 100 watts. Since this can cause grief with core losses it has to run continuous mode. So I need a diode with no or hardly any reverse recovery time. Now that we have 200V Schottkies here is the puzzler.
tten for a Schottky. There may be a PN guard ring that conducts up there, a nd will have reverse recovery. I've seen that happen, and it can get ugly.
ime
why Trr numbers are published at very low forward current conditions (like
10 mA on a >1 A diode)". It's usually published at an amp or more. Still pe ak current in a bost converter with a 5:1 to 10:1 step-up ratio is several times the rated average current and things could get ugly up there.them I realistically get only one shot.
diodes have it. All you'd be doing is scale down the effect and then, by paralleling, scale it back up again. I don't want to hear your complaining. I have to design a boost converter that makes 5000 volts.
ility testing. The client engineers called it "the death machine" because o f all the warnings and skull & bones on it. Later, the agency compliance gu y walks in to witness the tests. I turn on the unit ... *TUNGGGG* ... oooouuuuiiiieeee .... guy rolls his chair all the way to the other end of the room. I had placed a big easel in the central hallway, urging everyone to back-up frequently because of electrical stress tests that day. After xx runs the PBX phone system quit working, shortly afterwards so meone hollered "HEY, my computer just froze up!"
board that they know (or should know) has a max 5 volt supply.
They probably know that you can get a nasty - thermal - burn from some of t he parts that dissipate enthusiastically.
The processors in my computer run at a lot less than 5V and the package spo rts a huge heat sink ...