Quark ESC Power Board Comparisons/Mods

[sikeston34m]

I am in the infant stages of challenging myself to build a custom power board that will use higher amp MOSFET's but be controlled by the Quark Brain Board and Software.

The MOSFET's that I plan on using are:
75545P
N236
A1
The absolute max ratings are 75A, 80V, 0.010 Ohm, N-Channel, UltraFET Power MOSFET. This style has compatible on/off speeds with the FET's used in the Quarks.

I noticed in looking up information on the 75545P that since it's a N-channel MOSFET, it is neither a PNP nor a NPN FET. It doesn't have a preference to which polarity of DC current controls it's gate.

I've been digging around in my 33Amp ESC doing some research on it's FET's. This ESC uses two types of FET's. The TPC8107, Silicon P-Channel MOS Type(PNP type), and the IORP550C NPN Style FET. These have max voltage limitations of 30 volts. The data sheets don't show a max amp rating, but it can't be much.

I was wondering how to adapt the circuits to the N-channel MOSFET's knowing it was going to be a big problem until I began looking at my Quark 80 amp ESC.

The Quark 80 Amp uses 24 of the the 22N03S MOSFETs! These are N-Channel also. The Data sheet on this MOSFET shows absolute ratings of a 30 volt limitation with a 50 amp current limitation. Much Better!

I can only see the front 12 MOSFET's, and I'm not tearing my Quark 80 completely down just to see. Does anyone know if the MOSFET's on both sides of the board are the same?

I'm wondering also, What are the numbers on the ones used in the Quark 125 amp model? I looked around at some of the other posts pics, and I can't make it out. They appear to be the same, plus the 125 amp model uses 36 of them.

I would also like some FET input on the Quark 65 amp model if anyone has access to that.

I know that adapting a larger MOSFET in place of a smaller MOSFET will be much easier to do than using a brain board that currently controls a NPN, PNP Fet arrangement.

I'm going to look at this in two steps.

Goal #1. Use a MOSFET controller like the 80 amp or 125 amp to control a custom built powerboard capable of 200 or 300 amps continuous. Same software, same voltage limitations.

Goal #2. Is it possible to regulate the voltage to the existing logic controller in such a way, that it will control a power board that is at a much higher voltage? Regulate incoming power to the logic board, and also incoming feedback from the motor? I'm a long way from answering this one, but there must be a way.

Any help, or input would be greatly appreciated.