I'm doing a large mechatronic project and need to do some MOSFET calculations, so I can do a theoretically/practical analysis. I found the equation for Drain-Source current, but can't figure out where to get the values from. Does someone know where to find the first four values for e.a. the MOSFET IRFZ34N?
You won't find Cox, W, or L on any power MOSFET datasheet (or anywhere else except in the engineering department at the factory). Do your analysis using the data in the datasheet. As a practical matter, that equation is useless, except to engineers who design transistors.
EDIT: Len posted while I was composing. I suppose you could work backwards to get k, but I doubt it would be helpful in your analysis.