ok... what the problem is that the daytime running lights (DRL) on the new cars are using PWM for dimming the headlights during the day (full 12v at night)... i do not know the frequency and i think the voltage drops down to about 10v (under load - do not know unloaded)
i need the full voltage to run the ballist for the HID lighting...
i have used the signal to gate a SCR and run a relay that supplied the HID's
what i want to do on my truck is use that DRL signal to turn on a relay that turns on the fog lights and when the DRL signal goes away (full 12v) the same relay drops out and i can light up the HID's
not sure how to do this.... any ideas???
i need the full voltage to run the ballist for the HID lighting...
i have used the signal to gate a SCR and run a relay that supplied the HID's
what i want to do on my truck is use that DRL signal to turn on a relay that turns on the fog lights and when the DRL signal goes away (full 12v) the same relay drops out and i can light up the HID's
not sure how to do this.... any ideas???