As I was working on controller improvements and troubleshooting lately, I had to revisit the gate resistor (Rg) calculations for the MOSFETs. I remember spending quite a bit of time reading and understanding all the details related to the topic a few years ago. Today I managed to find my old spreadsheet with these calculations, so I am sharing it here.

The yellow fields are for you to fill in, the green and blue fields are the calculation results.

The first part of the calculation takes data from the MOSFET driver spec sheet, the rest takes data from MOSFET spec sheet. There is also a calculation of power losses in MOSFET due to Rds_on (internal resistance in ON state), internal reverse diode and switching losses.

I think some safety margin has to be added to the calculation results, be it the value of Rg or power dissipation on MOSFETS. After all experiment is above all.

Here is the link to the spreadsheet, you can make a copy  and try it out: https://docs.google.com/spreadsheets/d/1Ve_Na2TeJ9tnqLR-a9Xq9UVWQML9zJIohvyIiXEXJX0/edit?usp=sharing