Hello, I'm building a half bridge circuit using the IGBT IKY150N65EH7, it has an additional kelvin pin but I'm not sure how to connect it properly, it also isn't written on the datasheet. I made the circuit based on a few articles I found, but I wasn't sure if I did it correctly, plz let me know if I did it wrong and how to connect it properly. (pin 4 is gate and pin 3 is the kelvin pin, based on what I read I used it as the ground referance for high side)

 

It is the common (not ground) terminal for the gate driver exclusively. Do not draw any load current from that pin.
Which is exactly what your schematic shows.

 

It is the common (not ground) terminal for the gate driver exclusively. Do not draw any load current from that pin.
Which is exactly what your schematic shows.

Thanks for the reply, but can you elaborate more, what about the pin 4 connection, if it's convenient can you draw a quick explanation? Thanks!

 

but can you elaborate more

The schematic in post #1 is correct. Gate drive is from G to KS. Power is from D to S.

 

The schematic in post #1 is correct.

Post #2 said that I did it wrong, but I don't fully understand how to connect it properly, can you explain it, thanks!

 

https://en.wikipedia.org/wiki/Insulated-gate_bipolar_transistor

https://en.wikipedia.org/wiki/Power_MOSFET

 

Post #2 said that I did it wrong,

It is hard to understand #2 but I think " Which is exactly what your schematic shows. " that means you are OK.

 

It is hard to understand #2 but I think " Which is exactly what your schematic shows. " that means you are OK.

So do I have to change anything?

 

Do not change anything.

 

Got it, thanks for the reply