I am currently working on a drive for a DC motor and I want to add a reverse voltage protection on my circuit so it doesn't fry in the case of an inverted power supply. I've read many tutorials on that subject and I chose a protection using an enhancement mode N-channel MOSFET.
My circuit will be powered with a 24V source and most of the N-channel MOSFETs only have a max Vgs of +/- 20V which is a problem because in a case of a reverse voltage, Vgs will be -24V, over the absolute maximum characteristics for most MOSFETs.
My question is this: Can I use a resistor voltage divider to create a lower voltage at the gate, thus having a Vgs that is within the specifications?
Something like this:
I have no background whatsoever with MOSFETs so I am wondering if that will cause any problems.