/diy/ - Do It Yourself

I have a 2 Ohm wire i would like to be heated up. I have a LM311 working as a comparator that should turn the power on and off for the wire with a mosfet, IRF9530.

With a 12V supply the load would draw 6A, but the circuit does not work. This is my main problem. What do i do to fix this?

When i apply a different load that draws 2A it works fine but the mosfet heats up, its should be able to handle 12A without a problem. Only when the load is pulling 1A stays at ambient temp.