Are there any disadvantages to replacing relays in a 12 volt automotive environment with MOSFETs?
I've already built a solid state indicator flasher using MOSFETs to drive high power Luxeon LEDs that has been in continuous use for a day on the bench flashing merrily away without any problems.
I'm now designing a BMW/Renault etc single button start/stop system that works with an aftermarket passive keyless entry system to totally eliminate the old fashioned ignition-key-in-the-lock system.Although easy to do with relays and a few flip flops it would be nice to get it working with MOSFETs instead.So what's the worst thing that could happen of I do this?
Chris.
I've already built a solid state indicator flasher using MOSFETs to drive high power Luxeon LEDs that has been in continuous use for a day on the bench flashing merrily away without any problems.
I'm now designing a BMW/Renault etc single button start/stop system that works with an aftermarket passive keyless entry system to totally eliminate the old fashioned ignition-key-in-the-lock system.Although easy to do with relays and a few flip flops it would be nice to get it working with MOSFETs instead.So what's the worst thing that could happen of I do this?
Chris.