I have been using this fuse blown indicator circuit for a bit, it basically works perfectly fine with positive voltages no matter if there is or nor a load connected
The problem starts when I feed the circuit with negative voltages, as you can see in the picture my MOSFET never activates, It simply won't work as intended, even if I decide to turn around the LED, it uses ground as reference and it actually turns on the led but stays on permanently (meaning the mosfet doesn't open) since it's using GND as reference and providing 5v to the led and resistor in inverse polarization.
Already tried putting some diodes at the bottom but the MOSFET still doesn't respond. My question here is, how can I activate the MOSFET using negative voltages? Considering I will also use this circuit with -12v in the future, I'm thinking of using an inverter but I would like to hear some feedback before I do this.