Hello! I'm new in electronics and I'm working on this project, a rpm limiter for my motorcycle.
I need to "cut" the injectors common positive supply so I designed this simple circuit. It is in normally closed configuration because if the microcontroller fails the engine won't stop.
the supply can range from 6v to 26 v because I want to power the board from another power supply, but the ground is shared.
I also arranged a flyback diode to protect the mosfet against the spikes coming back from the injectors.
Do you think this could work? I don't know what value could be good for r1 and r2.
the mosfet is a pnp FQPF17P06
Forgive me for the sloppy scheme...
I need to "cut" the injectors common positive supply so I designed this simple circuit. It is in normally closed configuration because if the microcontroller fails the engine won't stop.
the supply can range from 6v to 26 v because I want to power the board from another power supply, but the ground is shared.
I also arranged a flyback diode to protect the mosfet against the spikes coming back from the injectors.
Do you think this could work? I don't know what value could be good for r1 and r2.
the mosfet is a pnp FQPF17P06
Forgive me for the sloppy scheme...
