This is galvanically isolated mosfet driver (one drv per mosfet) that uses very fast inductive coupling IL610 chip. Output is connected with 3pin array to mosfet module. 3 instead of 2 to have more mechanical stability.
6pin socket is my standard to use ribbon cable socket that has GND, +12V, +5V, and a signal. Then you can connect everything to CPU or whatever, add modules in between to limit the pulse - so everything is plug and play.
EDIT: I have found that transistor is not good for the circuit, if you replicate, please remove the transistor (and its resistor)! Due to the delay it will create wrong overlap signal and will partly short the signal.