Re: DFI Module
Posted: Fri Jul 27, 2012 9:53 pm
Ok I must admit i'm not great with electronics. Would this work?
If I supply 5v to a relay, I assume this will come from a sensor driver on the PCM. Wire the switching side of the relay across the poles of the DFI coil output. Idle the voltage across both terminals being high will unlatch the relay supplying the 0v needed for the idle state of the LS2 coil. As the DFI grounds the coil to charge it, this will energise the relay and supply the 5v required to the LS2 coil. As the trigger pole goes to a high state again, this will drop out the relay and effect the 0v to fire the LS2 coil.
Now the obvious thing is I cant use an electromechanical relay as it wont trigger fast enough but something like a solid state relay might? Maybe a transistor based switch that carries out a similar function to a relay...as you stated before theirs not a great deal of amperage it needs to deal with.
If I supply 5v to a relay, I assume this will come from a sensor driver on the PCM. Wire the switching side of the relay across the poles of the DFI coil output. Idle the voltage across both terminals being high will unlatch the relay supplying the 0v needed for the idle state of the LS2 coil. As the DFI grounds the coil to charge it, this will energise the relay and supply the 5v required to the LS2 coil. As the trigger pole goes to a high state again, this will drop out the relay and effect the 0v to fire the LS2 coil.
Now the obvious thing is I cant use an electromechanical relay as it wont trigger fast enough but something like a solid state relay might? Maybe a transistor based switch that carries out a similar function to a relay...as you stated before theirs not a great deal of amperage it needs to deal with.