A circuit will have 24V @ 1.5A (max) input from a wall wart. I'd like to design in reverse polarity and maybe over voltage input protection. (There are lots of threads about this.) I don't like the Zener/ polyfuse idea, cause there is going to be a lot of power in the Zener... I'm afraid it will smoke before the polyfuse lets go. So some FET circuit. Here's Jim T's offering. (from a past thread.)
The gate source voltage on most of the P-fets I've looked at is
+/- 20V. So the 24V is a bit of a concern. I can just put in some resistors to make a voltage divider.. so not a big deal.But do I need two P-fets? (Oh snap, never mind.. I had to draw the circuit.)
Well I'll make it a question anyway... are then any P-fets that can handle more G-S voltage... (well more in absolute value.)
TIA George H.